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IP Service Level Agreement Commands
This module describes the Cisco IOS XR software commands to configure IP Service Level Agreements (IP SLAs) on your router.
For detailed information about IP SLA concepts, configuration tasks, and examples, see the Implementing IP Service Level Agreements module in the Cisco IOS XR System Monitoring Configuration Guide for the Cisco CRS Router.
- access-list
- action (IP SLA)
- ageout
- buckets (history)
- buckets (statistics hourly)
- buckets (statistics interval)
- control disable
- datasize request
- destination address (IP SLA)
- destination port
- distribution count
- distribution interval
- exp
- filter
- force explicit-null
- frequency (IP SLA)
- history
- interval
- ipsla
- key-chain
- life
- lives
- low-memory
- lsp selector ipv4
- lsr-path
- maximum hops
- maximum paths (IP SLA)
- monitor
- mpls discovery vpn
- mpls lsp-monitor
- operation
- output interface
- output nexthop
- packet count
- packet interval
- path discover
- path discover echo
- path discover path
- path discover scan
- path discover session
- react
- react lpd
- reaction monitor
- reaction operation
- reaction trigger
- responder
- recurring
- reply dscp
- reply mode
- samples
- scan delete-factor
- scan interval
- schedule monitor
- schedule operation
- schedule period
- show ipsla application
- show ipsla history
- show ipsla mpls discovery vpn
- show ipsla mpls lsp-monitor lpd
- show ipsla mpls lsp-monitor scan-queue
- show ipsla mpls lsp-monitor summary
- show ipsla responder statistics ports
- show ipsla statistics
- show ipsla statistics aggregated
- show ipsla statistics enhanced aggregated
- source address
- source port
- start-time
- statistics
- tag (IP SLA)
- target ipv4
- target pseudowire
- target traffic-eng
- threshold
- threshold type average
- threshold type consecutive
- threshold type immediate
- threshold type xofy
- timeout (IP SLA)
- tos
- ttl
- type icmp echo
- type icmp path-echo
- type icmp path-jitter
- type mpls lsp ping
- type mpls lsp trace
- type udp echo
- type udp jitter
- type udp ipv4 address
- verify-data
- vrf (IP SLA)
- vrf (IP SLA MPLS LSP monitor)
access-list
To specify an access-list name to filter provider edge (PE) addresses to restrict operations that are automatically created by MPLS LSP monitor (MPLSLM) instance, use the access-list command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Syntax Description
Command Modes
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Access-list changes are processed before the scan interval expires to display a planned list of changes in the scan-queue.
Note
There is no verification check between the access list and the IPSLA configuration.
Task ID
Examples
The following example shows how to use the access-list command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# access-list ipslaaction (IP SLA)
To specify what action or combination of actions the operation performs when you configure the react command or when threshold events occur, use the action command in the appropriate configuration mode. To clear action or combination of actions (no action can happen), use the no form of this command.
Syntax Description
logging
Sends a logging message when the specified violation type occurs for the monitored element. The IP SLA agent generates a syslog and informs SNMP. Then, it is up to the SNMP agent to generate a trap or not.
trigger
Determines that the operation state of one or more target operations makes the transition from pending to active when the violation conditions are met. The target operations to be triggered are specified using the ipsla reaction trigger command. A target operation continues until its life expires, as specified by the lifetime value of the target operation. A triggered target operation must finish its life before it can be triggered again.
Command Modes
IP SLA reaction condition configuration
IP SLA MPLS LSP monitor reaction configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor reaction configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
For the action command to occur for threshold events, the threshold type must be defined. Absence of threshold type configuration is considered if the threshold check is not activated.
When the action command is used from IP SLA MPLS LSP monitor reaction configuration mode, only the logging keyword is available.
If the action command is used in IP SLA operation mode, the action defined applies to the specific operation being configured. If the action command is used in IP SLA MPLS LSP monitor mode, the action defined applies to all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the action command with the logging keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react connection-loss RP/0/RP0/CPU0:router(config-ipsla-react-cond)# action loggingThe following example shows how to use the action command from the IP SLA MPLS LSP monitor reaction configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# reaction monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-react)# react connection-loss RP/0/RP0/CPU0:router(config-ipsla-mplslm-react-cond)# action loggingRelated Commands
Command
Description
Configures MPLS label switched path (LSP) monitoring.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures MPLS LSP monitoring reactions.
Configures certain actions that are based on events under the control of the IP SLA agent.
Specifies an element to be monitored for a reaction.
Sets the lower-limit and upper-limit values.
Takes action on average values to violate a threshold.
Takes action after a number of consecutive violations.
Takes action immediately upon a threshold violation.
Takes action upon X violations in Y probe operations.
ageout
To specify the number of seconds to keep the operation in memory when it is not actively collecting information, use the ageout command in IP SLA schedule configuration mode. To use the default value so that the operation will never age out, use the no form of this command.
Syntax Description
seconds
Age-out interval in seconds. The value 0 seconds means that the collected data is not aged out. Range is 0 to 2073600.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the ageout command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# schedule operation 1 RP/0/RP0/CPU0:router(config-ipsla-sched)# ageout 3600buckets (history)
To set the number of history buckets that are kept during the lifetime of the IP SLA operation, use the buckets command in IP SLA operation history configuration mode. To use the default value, use the no form of this command.
Syntax Description
buckets
Number of history buckets that are kept during the lifetime of an IP SLA operation. Range is 1 to 60.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The buckets command is supported only to configure the following operations:
Task ID
Examples
The following example shows how to use the buckets command in IP SLA UDP echo configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp echo RP/0/RP0/CPU0:router(config-ipsla-udp-echo)# history RP/0/RP0/CPU0:router(config-ipsla-op-hist)# buckets 30buckets (statistics hourly)
To set the number of hours for which statistics are kept, use the bucket command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
hours
Number of hours for which statistics are maintained for the IP SLA operations. Range is 0 to 25 in IP SLA operation statistics configuration mode, and 0 to 2 in IP SLA MPLS LSP monitor statistics configuration mode.
Command Modes
IP SLA operation statistics configuration
IP SLA MPLS LSP monitor statistics configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor statistics configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The buckets command with the hours argument is valid only for the statistics command with the hourly keyword.
Task ID
Examples
The following example shows how to set the number of hours in which statistics are maintained for the IP SLA UDP jitter operation for the buckets command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# statistics hourly RP/0/RP0/CPU0:router(config-ipsla-op-stats)# buckets 10buckets (statistics interval)
To specify the maximum number of buckets in which the enhanced history statistics are kept, use the buckets command in IP SLA operation statistics configuration mode. To remove the statistics collection of the specified interval, use the no form of this command.
Syntax Description
bucket-size
The bucket size is when the configured bucket limit is reached. Therefore, statistics gathering for the operation ends. Range is 1 to 100. Default is 100.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The buckets command with the bucket-size argument is valid only for the statistics command with the interval keyword.
Examples
The following example shows how to collect statistics for a given time interval for the IP SLA UDP jitter operation for the buckets command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# statistics interval 60 RP/0/RP0/CPU0:router(config-ipsla-op-stats)# buckets 50control disable
To disable the control packets, use the control disable command in the appropriate configuration mode. To use the control packets again, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
When you configure the control disable command on the agent side, you need to configure a permanent port on the responder side or the operation returns a timeout error. If you configure the control disable command, a permanent port of the IP SLA Responder or some other functionality, such as the UDP echo server, is required on the remote device.
The control disable command is valid for operations that require a responder.
The IP SLA control protocol is disabled, which is used to send a control message to the IP SLA Responder prior to sending an operation packet. By default, IP SLA control messages are sent to the destination device to establish a connection with the IP SLA Responder.
Task ID
Examples
The following example shows how to use the control disable command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# control disabledatasize request
To set the protocol data size in the request packet in the payload of an operation, use the datasize request command in the appropriate configuration mode. To reset the default data size, use the no form of this command.
Syntax Description
Command Default
For a UDP jitter operation, the default value is 32 B.
For a UDP echo operation, the default value is 16 B.
For an ICMP echo operation, the default value is 36 B.
For an ICMP path-echo operation, the default value is 36 B.
For an ICMP path-jitter operation, the default value is 36 B.
For an MPLS LSP ping operation, the default value is 100 B.
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
IP SLA MPLS LSP ping configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.4.0
Support was added for IP SLA MPLS LSP ping configuration mode.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the datasize request command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# datasize request 512Related Commands
Command
Description
Configures MPLS label switched path (LSP) monitoring.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures an IP SLA ICMP echo operation.
Configures an IP SLA ICMP path-echo operation.
Configures an IP SLA ICMP path-jitter operation.
Tests connectivity in an LSP path in an MPLS VPN.
Configures an IP SLA UDP echo operation.
Configures an IP SLA UDP jitter operation.
destination address (IP SLA)
To identify the address of the target device, use the destination address command in the appropriate configuration mode. To unset the destination address, use the no form of this command.
Syntax Description
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
You must specify the address of the target device. The configuration for the destination address command is mandatory for all operations.
Task ID
Examples
The following example shows how to designate an IP address for the destination address command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# destination address 192.0.2.12destination port
To identify the port of the target device, use the destination port command in the appropriate configuration mode. To unset the destination port, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The destination port command is not supported when you configure an ICMP operation; it is supported only to configure UDP operations.
You must specify the port of the target device. The configuration for the destination port command is mandatory for both IP SLA UDP echo and IP SLA UDP jitter configurations.
Task ID
Examples
The following example shows how to designate a port for the destination port command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# destination port 11111distribution count
To set the number of statistics distributions that are kept for each hop during the lifetime of the IP SLA operation, use the distribution count command in IP SLA operation statistics configuration mode. To use the default value, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
In most situations, you do not need to change the number of statistics distributions kept or the time interval for each distribution. Only change these parameters when distributions are needed, for example, when performing statistical modeling of your network. To set the statistics distributions interval, use the distribution interval command in IP SLA operation statistics configuration mode. The total number of statistics distributions captured is the value set by the distribution count command times the value set by the maximum hops command times the value set by the maximum path command times the value set by the buckets command.
Task ID
Examples
The following example shows how to set the number of statistics distribution for the distribution count command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# statistics hourly RP/0/RP0/CPU0:router(config-ipsla-op-stats)# distribution count 15Related Commands
Command
Description
Sets the number of hours in which statistics are kept.
Sets the time interval (in milliseconds) for each statistical distribution.
Sets the number of hops in which statistics are maintained for each path for the IP SLA operation.
Sets the number of paths in which statistics are maintained for each hour for an IP SLA operation.
Sets the statistics collection parameters for the operation.
distribution interval
To set the time interval (in milliseconds) for each statistical distribution, use the distribution interval command in IP SLA operation statistics configuration mode. To use the default value, use the no form of this command.
Syntax Description
interval
Number of milliseconds used for each statistics distribution that is kept. Range is 1 to 100. Default is 20.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
In most situations, you do not need to change the number of statistics distributions kept or the time interval for each distribution. Only change these parameters when distributions are needed, for example, when performing statistical modeling of your network. To set the statistics distributions count, use the distribution count command in IP SLA operation statistics configuration mode. The total number of statistics distributions captured is the value set by the distribution count command times the value set by the maximum hops command times the value set by the maximum path command times the value set by the buckets command.
Task ID
Examples
The following example shows how to set the time interval for the distribution interval command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# statistics hourly RP/0/RP0/CPU0:router(config-ipsla-op-stats)# distribution interval 50Related Commands
Command
Description
Sets the number of hours in which statistics are kept.
Sets the number of statistics distributions that are kept for each hop during the lifetime of the IP SLA operation.
Sets the number of hops in which statistics are maintained for each path for the IP SLA operation.
Sets the number of paths in which statistics are maintained for each hour for an IP SLA operation.
Sets the statistics collection parameters for the operation.
exp
To specify the MPLS experimental field (EXP) value in the header of echo request packets, use the exp command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Syntax Description
exp-bits
Experimental field value in the header of an echo request packet. Valid values are from 0 to 7. Default is 0.
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to the IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the exp command to set the MPLS experimental field in the headers of echo request packets in an MPLS LSP ping or MPLS LSP trace operation. The experimental (EXP) field allows for eight different quality-of-service (QoS) markings that determine the treatment (per-hop behavior) that a transit LSR node gives to a request packet. You can configure different MPLS EXP levels for different operations to create differentiated levels of response.
If the exp command is used in IP SLA operation mode, it acts on the headers of echo request packets for the specific operation being configured. If the exp command is used in IP SLA MPLS LSP monitor mode, it acts on the headers of echo request packets for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the exp command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)# exp 5The following example shows how to use the exp command in MPLS LSP monitor mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-trace)# exp 5filter
To define the type of information that are kept in the history table for the IP SLA operation, use the filter command in IP SLA operation history configuration mode. To unset the history filter, use the no form of this command.
Syntax Description
all
Stores history data for all operations, if set.
failures
Stores data for operations that failed, if set.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The filter command is supported only to configure the following operations:
If you use the no form of the filter command, the history statistics are not collected.
Task ID
Examples
The following example shows how to use the filter command in IP SLA UDP echo configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp echo RP/0/RP0/CPU0:router(config-ipsla-udp-echo)# history RP/0/RP0/CPU0:router(config-ipsla-op-hist)# filter allforce explicit-null
To add an explicit null label to the label stack of an LSP when an echo request is sent, use the force explicit-null command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the force explicit-null command to force an unsolicited explicit null label to be added to the MPLS label stack of the LSP when an echo request packet is sent in an MPLS LSP ping or MPLS LSP trace operation.
If the force explicit-null command is used in IP SLA operation mode, it acts on the label stack of the LSP for the specific operation being configured. If the force explicit-null command is used in IP SLA MPLS LSP monitor mode, it acts on the label stack of all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
You cannot use the force explicit-null command if pseudowire is specified as the target to be used in an MPLS LSP ping operation.
Task ID
Examples
The following example shows how to use the force explicit-null command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)# force explicit-nullfrequency (IP SLA)
To set the frequency for probing, use the frequency command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
Command Default
If the frequency command is not used, the default value is 60 seconds.
In IP SLA MPLS LSP monitor schedule configuration mode, the default value is equal to the schedule period that is set using the schedule period command.
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor schedule configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.4.0
Support was added for IP SLA MPLS ping and IP SLA MPLS trace configuration modes.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor schedule configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If this command is used in IP SLA MPLS LSP monitor schedule configuration mode, it represents the frequency for the schedule period. In other words, if the frequency is set to 1000 seconds and the schedule period is set to 600 seconds, every 1000 seconds the LSP operations are run. Each run takes 600 seconds. Use the schedule period command to specify the schedule period.
The frequency value must be greater than or equal to the schedule period.
This configuration is inherited automatically by all LSP operations that are created.
Task ID
Examples
The following example shows how to use the frequency command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# frequency 300The following example shows how to use the frequency command in IP SLA MPLS LSP monitor schedule configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# schedule monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-sched)# frequency 1200 RP/0/RP0/CPU0:router(config-ipsla-mplslm-sched)# schedule period 600history
To configure the history parameters for the IP SLA operation, use the history command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
buckets
Sets the number of history buckets that are kept during the lifetime of the IP SLA operation.
buckets
Number of history buckets that are kept during the lifetime of an IP SLA operation. Range is 1 to 60.
filter
Defines the type of information that is kept in the history table for the IP SLA operation.
all
Stores history data for all operations, if set.
failures
Stores data for operations that failed, if set.
lives
Sets the number of lives that are maintained in the history table for an IP SLA operation.
lives
Number of lives that are maintained in the history table for an IP SLA operation. Range is 0 to 2.
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.4.0
Support was added for IP SLA MPLS LSP ping and IP SLA MPLS LSP trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The history command enters IP SLA operation history configuration mode in which you can configure more history configuration parameters.
Task ID
Examples
The following example shows how to use the history command in IP SLA UDP echo configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp echo RP/0/RP0/CPU0:router(config-ipsla-udp-echo)# history RP/0/RP0/CPU0:router(config-ipsla-op-hist)#Related Commands
Command
Description
Sets the number of history buckets that are kept during the lifetime of the IP SLA operation.
Defines the type of information that are kept in the history table for the IP SLA operation.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Sets the number of lives that are maintained in the history table for an IP SLA operation.
Sets the number of hop entries that are kept in the history table for an IP SLA ICMP path-echo operation.
interval
To configure the refresh interval for MPLS label switched path (LSP) monitoring, use the interval command in IP SLA MPLS discovery VPN configuration mode. To use the default value, use the no form of this command.
Syntax Description
refresh-interval
Specifies the time interval, in minutes, after which routing entries that are no longer valid are removed from the Layer 3 VPN discovery database. Range is 30 to 70560.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Note
If the total number of routes is large, there is a negative impact on the performance during the refresh of the discovery database. Therefore, the value of the refresh-interval argument should be large enough that router performance is not affected. If there are a very large number of routes, we recommend that you set the value of the refresh-interval argument to be several hours.
Task ID
Examples
The following example shows how to use the interval command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls discovery vpn RP/0/RP0/CPU0:router(config-ipsla-mpls-discovery-vpn)# interval 120ipsla
To enter IP SLA configuration mode and configure IP Service Level Agreements, use the ipsla command in global configuration mode. To return to the default setting, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The ipsla command enters IP SLA configuration mode where you can configure the various IP service level agreement options.
Task ID
Examples
The following example shows how to enter IP SLA configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)#Related Commands
Command
Description
Configures MD5 authentication for IP SLA control messages.
Configures a low-water memory mark.
Configures MPLS label switched path (LSP) provider edge (PE) router discovery.
Configures MPLS label switched path (LSP) monitoring.
Configures an IP SLA operation.
Configures certain actions that are based on events under the control of the IP SLA agent.
Defines a second IP SLA operation to make the transition from a pending state to an active state when one of the trigger-type options is defined with the reaction operation command.
Enables the IP SLA responder for UDP echo or jitter operations.
Schedules an IP SLA operation.
key-chain
To configure the MD5 authentication for the IP SLA control message, use the key-chain command in IP SLA configuration mode. To unset the keychain name and not use MD5 authentication, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
When you configure the key-chain command, you must also configure the key chain command in global configuration mode to provide MD5 authentication.
Task ID
Examples
The following example shows how to use the ipsla key-chain command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# key-chain ipsla-keyslife
To specify the length of time to execute, use the life command in IP SLA schedule configuration mode. To use the default value, use the no form of this command.
Syntax Description
forever
Schedules the operation to run indefinitely.
seconds
Determines the number of seconds the operation actively collects information. Range is 1 to 2147483647. Default value is 3600 seconds (one hour).
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the life command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# schedule operation 1 RP/0/RP0/CPU0:router(config-ipsla-sched)# life foreverlives
To set the number of lives that are maintained in the history table for an IP SLA operation, use the lives command in IP SLA operation history configuration mode. To use the default value, use the no form of this command.
Syntax Description
lives
Number of lives that are maintained in the history table for an IP SLA operation. Range is 0 to 2.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The lives command is supported only to configure the following operations:
If you use the no form of the lives command, the history statistics are not collected.
Task ID
Examples
The following example shows how to use the lives command in IP SLA UDP echo configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp echo RP/0/RP0/CPU0:router(config-ipsla-udp-echo)# history RP/0/RP0/CPU0:router(config-ipsla-op-hist)# lives 2Related Commands
Command
Description
Sets the number of history buckets that are kept during the lifetime of the IP SLA operation.
Defines the type of information that are kept in the history table for the IP SLA operation.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Sets the number of hop entries that are kept in the history table for an IP SLA ICMP path-echo operation.
low-memory
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
IP SLA ensures that the system provides the specified memory before adding new operations or scheduling the pending operation.
When the 0 value is used, no memory limitation is enforced.
Task ID
Examples
The following example shows how to use the low-memory command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# low-memory 102400lsp selector ipv4
To specify the local host IPv4 address used to select an LSP, use the lsp selector ipv4 command in the appropriate configuration mode. To clear the host address, use the no form of this command.
Syntax Description
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the lsp selector ipv4 command to force an MPLS LSP ping or MPLS LSP trace operation to use a specific LSP when there are multiple equal cost paths between provider edge (PE) routers. This situation occurs when transit label switching routers (LSRs) use the destination address in IP packet headers for load balancing.
The IPv4 address configured with the lsp selector ipv4 command is the destination address in the User Datagram Protocol (UDP) packet sent as the MPLS echo request. Valid IPv4 addresses are defined in the subnet 127.0.0.0/8 and used to:
- Force the packet to be consumed by the router where an LSP breakage occurs.
- Force processing of the packet at the terminal point of the LSP if the LSP is intact.
- Influence load balancing during forwarding when the transit routers use the destination address in the IP header for load balancing.
If the lsp selector ipv4 command is used in IP SLA operation mode, it acts on the MPLS echo requests for the specific operation being configured. If the lsp selector ipv4 command is used in IP SLA MPLS LSP monitor mode, it acts on the MPLS echo requests for all operations associated with the monitored provider edge (PE) routers.
Task ID
Examples
The following example shows how to use the lsp selector ipv4 command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)# lsp selector ipv4 127.10.10.1lsr-path
To specify a loose source routing path in which to measure the ICMP, use the lsr-path command in the appropriate configuration mode. To use a path other than the specified one, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The lsr-path command applies only to ICMP path-echo and ICMP path-jitter operation types.
You can configure up to a maximum of eight hop addresses by using the lsr-path command, as shown in the following example:
lsr-path ipaddress1 [ipaddress2 [... [ipaddress8]]]Task ID
Examples
The following example shows how to use the lsr-path command in IP SLA ICMP Path-echo configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp path-echo RP/0/RP0/CPU0:router((config-ipsla-icmp-path-echo)# lsr-path 192.0.2.40maximum hops
To set the number of hops in which statistics are maintained for each path for the IP SLA operation, use the maximum hops command in IP SLA operation statistics configuration mode. To use the default value, use the no form of this command.
Syntax Description
hops
Number of hops for which statistics are maintained for each path. Range is 1 to 30. Default value is 16 for path operations; for example, pathecho.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The maximum hops command is supported only when you configure path operations and the IP SLA ICMP path-echo operation.
Task ID
Examples
The following example shows how to set the number of hops for the statistics for the maximum command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp path-echo RP/0/RP0/CPU0:router(config-ipsla-icmp-path-echo)# statistics hourly RP/0/RP0/CPU0:router(config-ipsla-op-stats)# maximum hops 20Related Commands
Command
Description
Sets the number of hours in which statistics are kept.
Sets the number of statistics distributions that are kept for each hop during the lifetime of the IP SLA operation.
Sets the time interval (in milliseconds) for each statistical distribution.
Sets the number of paths in which statistics are maintained for each hour for an IP SLA operation.
Sets the statistics collection parameters for the operation.
maximum paths (IP SLA)
To set the number of paths in which statistics are maintained for each hour for an IP SLA operation, use the maximum paths command in IP SLA operation statistics configuration mode. To use the default value, use the no form of this command.
Syntax Description
paths
Number of paths for which statistics are maintained for each hour. Range is 1 to 128. Default value is 5 for path operations; for example, pathecho.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The maximum paths command is supported only when you configure path operations and the IP SLA ICMP path-echo operation.
Task ID
Examples
The following example shows how to set the number of paths for the statistics for the maximum paths command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp path-echo RP/0/RP0/CPU0:router(config-ipsla-icmp-path-echo)# statistics hourly RP/0/RP0/CPU0:router(config-ipsla-op-stats)# maximum paths 20Related Commands
Command
Description
Sets the number of hours in which statistics are kept.
Sets the number of statistics distributions that are kept for each hop during the lifetime of the IP SLA operation.
Sets the time interval (in milliseconds) for each statistical distribution.
Sets the number of hops in which statistics are maintained for each path for the IP SLA operation.
Sets the statistics collection parameters for the operation.
monitor
To configure an MPLS LSP monitor instance, use the monitor command in IP SLA LSP monitor configuration mode. To remove the monitor instance, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The monitor command enters IP SLA MPLS LSP monitor configuration mode so that you can set the desired monitor type for all operations associated with the monitored provider edge (PE) routers.
To remove all monitor instances, use the no monitor command with no argument.
Task ID
Examples
The following example shows how to use the monitor command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)#mpls discovery vpn
To configure MPLS label switched path (LSP) provider edge (PE) router discovery, use the mpls discovery vpn command in IP SLA configuration mode. To use the default value, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the mpls discovery vpn command to configure provider edge (PE) router discovery. PE Discovery discovers the LSPs used to reach every routing next hop. Routing entities are stored in a Layer 3 VPN discover database.
Task ID
Examples
The following example shows how to enter IP SLA MPLS discovery VPN mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls discovery vpn RP/0/RP0/CPU0:router(config-ipsla-mpls-discovery-vpn)#mpls lsp-monitor
To configure MPLS label switched path (LSP) monitoring, use the mpls lsp-monitor command in IP SLA configuration mode. To use the default value, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the mpls lsp-monitor command to configure MPLS LSP PE monitoring on the router. This provides a means to configure all operations associated with the monitored provider edge (PE) routers. The configuration is inherited by all LSP operations that are created automatically by the PE discovery.
Task ID
Examples
The following example shows how to enter IP SLA MPLS LSP monitor mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)#operation
To configure an IP SLA operation, use the operation command in IP SLA configuration mode. To remove the operation, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
output interface
To specify the echo request output interface to be used for LSP ping or LSP trace operations, use the output interface command in IP SLA MPLS LSP ping or IP SLA MPLS LSP trace configuration mode. To return the output interface to the default, use the no form of this command.
Syntax Description
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Note Use the show interfaces command to see a list of all interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the output interface command to help monitor path-to-target over the path if there are some ECMP routes in a topology.
You cannot use the output interface command if pseudowire is specified as the target to be used in an MPLS LSP ping operation.
Task ID
Examples
The following example shows how to use the output interface command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls ls output interface pos 0/1/0/0output nexthop
To specify the next-hop address to be used for a Label Switched Path (LSP) ping or LSP trace operations, use the output nexthop command in the appropriate configuration mode. To return the output next hop to the default, use the no form of this command.
Syntax Description
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
When LSP Path Discovery (LPD) is enabled, the next-hop IP address is also used to filter out the paths that are not associated with the specified next-hop address.
Note
After you configure the output next hop, you must also configure the output interface.
Task ID
Examples
The following example shows how to use the output nexthop command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)# output nexthop 10.1.1.1Related Commands
packet count
To specify the number of packets that are to be transmitted during a probe, such as a sequence of packets being transmitted for a jitter probe, use the packet count command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
count
Number of packets to be transmitted in each operation. Range for a UDP jitter operation is 1 to 60000. Range for an ICMP path-jitter operation is 1 to 100.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the packet count command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# packet count 30packet interval
To specify the interval between packets, use the packet interval command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the packet interval command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# packet interval 30path discover
To enable path discovery and enter MPLS LSP monitor (MPLSLM) LPD submode, use the path discover command in IP SLA MPLS LSP monitor ping configuration mode. To use the default value, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to enter path discover submode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# path discover RP/0/RP0/CPU0:router(config-ipsla-mplslm-lpd)#path discover echo
To configure MPLS LSP echo parameters, use the path discover command in the appropriate configuration mode. To use the default value, use the no form of this command.
path discover echo { interval time | maximum lsp selector ipv4 host address | multipath bitmap size size | retry count | timeout value }
no path discover echo { interval time | maximum lsp selector ipv4 host address | multipath bitmap size size | retry count | timeout value }
Syntax Description
interval time
Configures the interval (in milliseconds) between MPLS LSP echo requests sent during path discovery. Range is 0 to 3600000. Default is 0.
maximum lsp selector ipv4 host-address
Configures a local host IP address (127.x.x.x) that is the maximum selector value to be used during path discovery. Default is 127.255.255.255.
multipath bitmap size size
Configures the maximum number of selectors sent in the downstream mapping of an MPLS LSP echo request during path discovery. Range is 1 to 256. Default is 32.
retry count
Configures the number of timeout retry attempts for MPLS LSP echo requests sent during path discovery. Range is 0 to 10. Default is 3.
timeout value
Configures the timeout value (in seconds) for MPLS LSP echo requests sent during path discovery. Range is 1 to 3600. Default is 5.
Command Default
interval time: 0
maximum lsp selector ipv4 host address: 127.255.255.255
multipath bitmap size size : 32
retry count: 3
timeout value: 5
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
A retry occurs when either an echo reply was not received on time for an outstanding echo request, or when no selectors are found for a given path by a transit router.
When a selector value is configured in MPLSLM configuration mode, the maximum selector specified must be larger than that value. In such a scenario, the range of selectors used for path discovery is set by the two values.
When the interval time is zero, a new echo request is sent after the previous echo retry was received.
Task ID
Examples
The following example shows how to configure the path discover echo interval:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# path discover RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-lpd)# echo interval 777path discover path
To configure MPLS LSP path parameters, use the path discover path command in MPLS LSP monitor (MPLSLM) LPD configuration submode. To use the default value, use the no form of this command.
path discover path { retry range | secondary frequency { both | connection-loss | timeout } value }
no path-discover path
Syntax Description
retry range
Configures the number of attempts to be performed before declaring a path as down. Default is 1 (LSP group will not retry to perform the echo request if the previous attempt fails). Range is 1 to 16.
secondary frequency
Configures a secondary frequency to use after a failure condition (that is, a connection-loss or timeout) occurs.
both
Enable secondary frequency for a timeout and connection loss.
connection-loss
Enable secondary frequency for only a connection loss.
timeout
Enable secondary frequency for only a timeout.
value
Frequency value range is 1 to 604800.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
In the event of a path failure, the secondary frequency value is used instead of the normal frequency value. The normal frequency value is determined by a frequency value or schedule period value, and the LSP operations are scheduled to start periodically at this interval. By default, the secondary frequency value is disabled. When failure condition disappears, probing resumes at the regular frequency.
Note
The secondary command works in tandem with the retry keyword. Both must be configured.
Task ID
Examples
The following example shows how to configure MPLS LSP path parameters:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# path discover RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-lpd)# path retry 12 RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-lpd)# path secondary frequency both 10path discover scan
To configure MPLS LSP scan parameters, use the path discover scan command in MPLS LSP monitor (MPLSLM) LPD configuration submode. To use the default value, use the no form of this command.
Syntax Description
period value
Configures the time (in minutes) between consecutive cycles of path discovery requests per MPLSLM instance. Range is 0 to 7200. Default is 5.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
MPLSLM instances periodically trigger path discovery requests for LSP groups. At certain intervals, an MPLSLM instance begins triggering path discovery requests for each group in ascending order (determined by group ID). By default, the path discovery requests are triggered sequentially, although some concurrency may occur if the session limit value is greater than 1. The cycle concludes when the last LSP group finishes path discovery.
If the duration of the discovery cycle is larger than the scan period, a new cycle starts as soon as the previous one completes.
Task ID
Examples
The following example shows shows how to configure the path discovery scan period value:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# path discover RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-lpd)# scan period 2path discover session
To configure MPLS LSP session parameters, use the path discover session command in MPLS LSP monitor (MPLSLM) LPD configuration submode. To use the default value, use the no form of this command.
path discover session { limit value | timeout value }
no path discover session { limit value | timeout value }
Syntax Description
limit value
Configures the number of concurrent active path discovery requests the MPLSLM instance submits to the LSPV server. Range is 1 to 15. Default is 1.
timeout value
Configures the time (in seconds) the MPLSLM instance will wait for the result of a path discovery request submitted to the LSPV server. Range is 1 to 900. Default is 120.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
An MPLSLM instance considers the path discovery as a failure when it receives no response within the configured timeout configuration value.
Task ID
Examples
The following example shows how to configure the path discovery session timeout value:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# path discover RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-lpd)# session timeout 22react
To specify an element to be monitored for a reaction, use the react command in the appropriate configuration mode. To remove the specified reaction type, use the no form of this command.
react { connection-loss | jitter-average [ dest-to-source | source-to-dest ] | packet-loss { dest-to-source | source-to-dest } | rtt | timeout | verify-error }
no react { connection-loss | jitter-average [ dest-to-source | source-to-dest ] | packet-loss { dest-to-source | source-to-dest } | rtt | timeout | verify-error }
Syntax Description
connection-loss
Specifies that a reaction occurs if there is a connection-loss for the monitored operation.
jitter-average [dest-to-source | source-to-dest]
Specifies that a reaction occurs if the average round-trip jitter value violates the upper threshold or lower threshold. The following options are listed for the jitter-average keyword:
packet-loss {dest-to-source | source-to-dest}
Specifies the reaction on packet loss value violation. The following options are listed for the packet-loss keyword:
rtt
Specifies that a reaction occurs if the round-trip value violates the upper threshold or lower threshold.
timeout
Specifies that a reaction occurs if there is a timeout for the monitored operation.
verify-error
Specifies that a reaction occurs if there is an error verification violation.
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor reaction configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
For the connection-loss keyword, jitter-average keyword, and rtt keyword, the reaction does not occur when the value violates the upper or the lower threshold. The reaction condition is set when the upper threshold is passed, and it is cleared when values go below the lower threshold.
For the connection-loss keyword and verify-error keyword, thresholds do not apply to the monitored element.
For the jitter-average keyword, packet-loss keyword, and rtt keyword, if the upper threshold for react threshold type average 3 is configured as 5000 ms and the last three results of the operation are 6000, 6000, and 5000 ms, the average is 6000 + 6000 + 5000=17000/3 = 5667—therefore violating the 5000-ms upper threshold. The threshold type average must be configured when setting the type. These keywords are not available if connection-loss, timeout, or verify-error is specified as the monitored element, because upper and lower thresholds do not apply to these options.
In IP SLA MPLS LSP monitor reaction configuration mode, only the connection-loss and timeout keywords are available. If the react command is used in IP SLA MPLS LSP monitor reaction configuration mode, it configures all operations associated with the monitored provider edge (PE) routers. The configuration is inherited by all LSP operations that are created automatically by the PE discovery.
Task ID
Examples
The following example shows how to use the react command with the connection-loss keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:rotuer(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react connection-loss RP/0/RP0/CPU0:router(config-ipsla-react-cond)#The following example shows how to use the react command with the jitter-average keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react jitter-average RP/0/RP0/CPU0:router(config-ipsla-react-cond)#The following example shows how to use the react command with the packet-loss keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react packet-loss dest-to-source RP/0/RP0/CPU0:router(config-ipsla-react-cond)#The following example shows how to use the react command with the rtt keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:rotuer(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react rtt RP/0/RP0/CPU0:router(config-ipsla-react-cond)#The following example shows how to use the react command with the timeout keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:rotuer(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react timeout RP/0/RP0/CPU0:router(config-ipsla-react-cond)#The following example shows how to use the react command with the verify-error keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:rotuer(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react verify-error RP/0/RP0/CPU0:router(config-ipsla-react-cond)#Related Commands
Command
Description
Specifies what action or combination of actions the operation performs when you configure the react command or when threshold events occur.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Sets the lower-limit and upper-limit values.
Takes action on average values to violate a threshold.
Takes action after a number of consecutive violations.
Takes action immediately upon a threshold violation.
Takes action upon X violations in Y probe operations.
react lpd
To specify that a reaction should occur if there is an LSP Path Discovery (LPD) violation, use the react lpd command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
lpd-group
Specifies that a reaction should occur if there is a status violation for the monitored LPD group.
tree-trace
Specifies that a reaction should occur if there is a path discovery violation for the monitored LPD group.
action
Configures the action to be taken on threshold violation.
logging
Specifies the generation of a syslog alarm on threshold violation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
A status violation for a monitored LPD group happens when the Label Switched Path (LSP) group status changes (with the exception of the status change from the initial state).
A path discovery violation for the monitored LPD group happens when path discovery to the target PE fails, or successful path discovery clears such a failure condition.
Task ID
Examples
The following example shows how to specify that a reaction should occur if there is a status violation for the monitored LPD group:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# reaction monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-react)# react lpd lpd-group action loggingreaction monitor
To configure MPLS label switched path (LSP) monitoring reactions, use the reaction monitor command in IP SLA MPLS LSP monitor configuration mode.To remove the reaction so that no reaction occurs, use the no form of this command.
Syntax Description
monitor-id
Number of the IP SLA MPLS LSP monitor instance for the reactions to be configured. Range is 1 to 2048.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The reaction monitor command enters IP SLA LSP monitor reaction configuration mode so that you can set the desired threshold and action in the event of a connection loss or timeout.
To remove all reactions, use the no reaction monitor command with no monitor-id argument.
The reaction monitor command configures reactions for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the reaction operation command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# reaction monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-react)#Related Commands
Command
Description
Specifies what action or combination of actions the operation performs when you configure the react command or when threshold events occur
Configures an IP SLA MPLS LSP monitor instance.
Specifies an element to be monitored for a reaction.
Schedules an IP SLA MPLS LSP monitor instance.
Specifies to take action after a number of consecutive violations.
Specifies to take action immediately upon a threshold violation.
reaction operation
To configure certain actions that are based on events under the control of the IP SLA agent, use the reaction operation command in IP SLA configuration mode.To remove the reaction so that no reaction occurs, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the reaction operation command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 1 RP/0/RP0/CPU0:router(config-ipsla-react)#reaction trigger
To define a second IP SLA operation to make the transition from a pending state to an active state when one of the trigger-type options is defined with the reaction operation command, use the reaction trigger command in IP SLA configuration mode. To remove the reaction trigger when the triggering-operation argument does not trigger any other operation, use the no form of this command.
reaction trigger triggering-operation triggered-operation
no reaction trigger triggering-operation triggered-operation
Syntax Description
triggering-operation
Operation that contains a configured action-type trigger and can generate reaction events. Range is 1 to 2048.
triggered-operation
Operation that is started when the triggering-operation argument generates a trigger reaction event. Range is 1 to 2048.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Both the triggering-operation and triggered-operation arguments must be configured. The triggered operation must be in the pending state.
Task ID
Examples
The following example shows how to use the ipsla reaction trigger command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction trigger 1 2responder
To enable the IP SLA responder for UDP echo or jitter operations, use the responder command in IP SLA configuration mode. To disable the responder, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
An IP address and port are configured and identified as a permanent port (for example, a port to which the responder is permanently listening). If no IP address and port are configured, the responder handles only dynamic ports (for example, ports that are listened to when requested by a remote operation).
Task ID
Examples
The following example shows how to enable the IP SLA responder:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# responder RP/0/RP0/CPU0:router(config-ipsla-resp)#recurring
To indicate that the operation starts automatically at the specified time and for the specified duration every day, use the recurring command in IP SLA schedule configuration mode. To not start the operation everyday, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the recurring command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# schedule operation 1 RP/0/RP0/CPU0:router(config-ipsla-sched)# recurringreply dscp
To specify the differentiated services codepoint (DSCP) value used in echo reply packets, use the reply dscp command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Syntax Description
dscp-bits
Differentiated services codepoint (DSCP) value for an echo reply packet. Valid values are from 0 to 63.
Reserved keywords such as EF (expedited forwarding) and AF11 (assured forwarding class AF11) can be specified instead of numeric values.
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the reply dscp command to set the DCSP value used in the headers of IPv4 UDP packets sent as echo replies in an MPLS LSP ping or MPLS LSP trace operation.
The DSCP value consists of the six most significant bits of the 1-byte IP type of service (ToS) field. These bits determine the quality-of-service (QoS) treatment (per-hop behavior) that an transit LSR node gives to an echo reply packet. For information about how packets are classified and processed depending on the value you assign to the 6-bit DSCP field, refer to “The Differentiated Services Model (DiffServ)” at the following URL:
http://www.cisco.com/en/US/products/ps6610/products_data_sheet09186a00800a3e30.html
If the reply dscp command is used in IP SLA operation mode, it acts on the headers of echo replies for the specific operation being configured. If the reply dscp command is used in IP SLA MPLS LSP monitor mode, it acts on the headers of echo replies for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the reply dscp command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-ping)# reply dscp 5reply mode
To specify how to reply to echo requests, use the reply mode command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Syntax Description
control-channel
Sets echo requests to reply by way of a control channel.
Note This option is available only in IP SLA MPLS LSP ping configuration mode.
router-alert
Sets echo requests to reply as an IPv4 UDP packet with IP router alert.
Command Default
The default reply mode for an echo request packet is an IPv4 UDP packet without IP router alert set.
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
The control-channel keyword was added in IP SLA MPLS LSP ping configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the reply mode command with the control-channel keyword to send echo reply packets by way of a control channel in an MPLS LSP ping operation. If the target is not set to pseudowire, the configuration of the control-channel keyword is rejected. Refer to the target pseudowire command for information about setting the target.
Use the reply mode command with the router-alert keyword to set the reply mode of echo reply packets in an MPLS LSP ping or MPLS LSP trace operation. After you enter this command, echo reply packets are set to reply as an IPv4 UDP packet with the IP router alert option in the UDP packet header.
If the reply mode command is used in IP SLA operation mode, it sets the reply mode of echo reply packets for the specific operation being configured. If the reply mode command is used in IP SLA MPLS LSP monitor mode, it sets the reply mode of echo reply packets for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
The router-alert reply mode forces an echo reply packet to be specially handled by the transit LSR router at each intermediate hop as it moves back to the destination. Because this reply mode is more expensive, it is recommended only if the headend router does not receive echo replies using the default reply mode.
Task ID
Examples
The following example shows how to use the reply mode command with the router-alert keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)# reply mode router-alertThe following example shows how to use the reply mode command with the control-channel keyword:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-ping)# target pseudowire 192.168.1.4 4211 RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-ping)# reply mode control-channelsamples
To set the number of hop entries that are kept in the history table for an IP SLA ICMP path-echo operation, use the samples command in IP SLA operation ICMP path-echo history configuration mode. To use the default value, use the no form of this command.
Syntax Description
sample-count
Number of history samples that are kept in the history table for an IP SLA ICMP path-echo operation. Range is 1 to 30.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The samples command is supported only when you configure an IP SLA ICMP path-echo operation.
Task ID
Examples
The following example shows how to use the samples command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp path-echo RP/0/RP0/CPU0:router(config-ipsla-icmp-path-echo)# history RP/0/RP0/CPU0:router(config-ipsla-op-hist)# samples 30Related Commands
Command
Description
Sets the number of history buckets that are kept during the lifetime of the IP SLA operation.
Defines the type of information that are kept in the history table for the IP SLA operation.
Configures the history parameters for the IP SLA operation.
Configures an IP SLA operation.
Schedules an IP SLA operation.
scan delete-factor
To specify the frequency with which the MPLS LSP monitor (MPLSLM) instance searches for provider edge (PE) routers to delete, use the scan delete-factor command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Syntax Description
factor-value
Specifies a factor that is multiplied by the scan interval to determine the frequency at which the MPLS LSP monitor instance deletes the provider edge (PE) routers that are no longer valid. Range is 0 to 2147483647.
Command Modes
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The scan delete-factor command specifies a factor value for automatic PE deletion. The specified factor-value is multiplied by the scan interval to acquire the frequency at which the MPLS LSP monitoring instance deletes not-found PEs. A scan delete factor of zero (0) means that provider edge (PE) routers that are no longer valid are never removed.
Task ID
Examples
The following example shows how to use the scan delete-factor command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# scan delete-factor 214scan interval
To specify the frequency at which the MPLS LSP monitor (MPLSLM) instance checks the scan queue for updates, use the scan interval command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Syntax Description
Command Modes
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the scan interval command to specify a frequency value in minutes at which the MPLS LSP monitoring instance checks the scan queue for PE updates. Updates from PE discovery are not processed immediately, but rather stored in a scan queue for batched processing at periodic intervals, specified by this value.
Task ID
Examples
The following example shows how to use the scan command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# scan interval 120schedule monitor
To schedule MPLS LSP monitoring instances, use the schedule monitor command in IP SLA LSP monitor configuration mode. To unschedule the monitoring instances, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The schedule monitor command enters IP SLA MPLS LSP monitor schedule configuration mode so that you can set the desired schedule parameters for the MPLS LSP monitor instance. This schedules the running of all operations created for the specified monitor instance.
To remove all configured schedulers, use the no schedule monitor command with no monitor-id argument.
Task ID
Examples
The following example shows how to access and use the schedule monitor command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# schedule monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-sched)#schedule operation
To enter schedule configuration mode, use the schedule operation command in IP SLA configuration mode. To remove the scheduler, use the no form of this command.
Syntax Description
operation-number
Configuration number or schedule number that is used to schedule an IP SLA operation. Range is 1 to 2048.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The schedule operation command enters the IP SLA schedule configuration mode. You can configure more schedule configuration parameters to schedule the operation.When an operation is scheduled, it continues collecting information until the configured life expires.
Task ID
Examples
The following example shows how to use the ipsla schedule operation command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# schedule operation 1 RP/0/RP0/CPU0:router(config-ipsla-sched)#Related Commands
Command
Description
Specifies the number of seconds to keep the operation in memory when it is not actively collecting information.
Configures an IP SLA operation.
Specifies the length of time to execute.
Indicates that the operation starts automatically at the specified time and for the specified duration every day.
Determines the time when the operation starts.
schedule period
To configure the amount of time during which all LSP operations are scheduled to start or run, use the schedule period command in IP SLA MPLS LSP monitor schedule configuration mode. To remove the scheduler, use the no form of this command.
Syntax Description
seconds
Amount of time in seconds for which label switched path (LSP) operations are scheduled to run. Range is 1 to 604800.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the schedule period command to specify the amount of time in seconds during which all LSP operations are scheduled to start running. All LSP operations are scheduled equally spaced throughout the schedule period.
For example, if the schedule period is 600 seconds and there are 60 operations to be scheduled, they are scheduled at 10-second intervals.
Use the frequency command to specify how often the entire set of operations is performed. The frequency value must be greater than or equal to the schedule period.
You must configure the schedule period before you can start MPLS LSP monitoring. Start MPLS LSP monitoring using the start-time command.
Task ID
Examples
The following example shows how to use the schedule period command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# schedule monitor 20 RP/0/RP0/CPU0:router(config-ipsla-mplslm-sched)# schedule period 6000show ipsla application
To display the information for the IP SLA application, use the show ipsla application command in EXEC mode.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output is from the show ipsla application command:
RP/0/RP0/CPU0:router# show ipsla application Estimated system max number of entries: 2048 Number of Entries configured: 1 Number of active Entries : 0 Number of pending Entries : 0 Number of inactive Entries : 1 Supported Operation Types: 7 Type of Operation: ICMP ECHO Type of Operation: ICMP PATH JITTER Type of Operation: ICMP PATH ECHO Type of Operation: UDP JITTER Type of Operation: UDP ECHO Type of Operation: MPLS LSP PING Type of Operation: MPLS LSP TRACE Number of configurable probes : 2047 SA Agent low memory water mark: 20480 (KB)
This table describes the significant fields shown in the display.
Table 1 show ipsla application Field DescriptionsField
Description
Estimated system max number of entries
Maximum number of operations that are configured in the system. The low-memory configured parameter and the available memory in the system are given.
Number of Entries configured
Total number of entries that are configured, such as active state, pending state, and inactive state.
Number of active Entries
Number of entries that are in the active state. The active entries are scheduled and have already started a life period.
Number of pending Entries
Number of entries that are in pending state. The pending entries have a start-time scheduled in the future. These entries either have not started the first life, or the entries are configured as recurring and completed one of its life.
Number of inactive Entries
Number of entries that are in the inactive state. The inactive entries do not have a start-time scheduled. Either the start-time has never been scheduled or life has expired. In addition, the entries are not configured as recurring.
Supported Operation Types
Types of operations that are supported by the system.
Number of configurable probes
Number of remaining entries that can be configured. The number is just an estimated value and it may vary over time according to the available resources.
SA Agent low memory water mark
Available memory for the minimum system below which the IP SLA feature does not configure any more operations.
show ipsla history
To display the history collected for all IP SLA operations or for a specified operation, use the show ipsla history command in EXEC mode.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
By default, history statistics are not collected. To have any data displayed by using the show ipsla history command, you must configure the history collection.
This table lists the response return values that are used in the show ipsla history command.
Table 2 Response Return Values for the show ipsla history CommandCode
Description
1
Okay
2
Disconnected
3
Over Threshold
4
Timeout
5
Busy
6
Not Connected
7
Dropped
8
Sequence Error
9
Verify Error
10
Application Specific
If the default tabular format is used, the response return description is displayed as code in the Sense column. The Sense field is always used as a return code.
Task ID
Examples
The following sample output is from the show ipsla history command:
RP/0/RP0/CPU0:router# show ipsla history 1 Point by point History Multiple Lines per Entry Line 1: Entry = Entry number LifeI = Life index BucketI = Bucket index SampleI = Sample index SampleT = Sample start time CompT = RTT (milliseconds) Sense = Response return code Line 2 has the Target Address Entry LifeI BucketI SampleI SampleT CompT Sense TargetAddr 1 0 0 0 1134419252539 9 1 192.0.2.6 1 0 1 0 1134419312509 6 1 192.0.2.6 1 0 2 0 1134419372510 6 1 192.0.2.6 1 0 3 0 1134419432510 5 1 192.0.2.6
This table describes the significant fields shown in the display.
Table 3 show ipsla history Field DescriptionsField
Description
Entry number
Entry number.
LifeI
Life index.
BucketI
Bucket index.
SampleI
Sample index.
SampleT
Sample start time.
CompT
Completion time in milliseconds.
Sense
Response return code.
TargetAddr
IP address of intermediate hop device or destination device.
show ipsla mpls discovery vpn
To display routing information relating to the BGP next-hop discovery database in the MPLS VPN network, use the show ipsla mpls discovery vpn command in EXEC mode.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output is from the show ipsla mpls discovery vpn command:
RP/0/RP0/CPU0:router# show ipsla mpls discovery vpn Next refresh after: 46 seconds BGP next hop Prefix VRF PfxCount 192.255.0.4 192.255.0.4/32 red 10 blue 5 green 7 192.255.0.5 192.255.0.5/32 red 5 green 3 192.254.1.6 192.254.1.0/24 yellow 4
This table describes the significant fields shown in the display.
Table 4 show ipsla mpls discovery vpn Field DescriptionsField
Description
BGP next hop
Identifier for the BGP next-hop neighbor.
Prefix
IPv4 Forward Equivalence Class (FEC) of the BGP next-hop neighbor to be used by the MPLS LSP ping or trace operation.
VRF
Names of the virtual routing and forwarding instances (VRFs) that contain routing entries for the specified BGP next-hop neighbor.
PfxCount
Count of the routing entries that participate in the VRF for the specified BGP next-hop neighbor.
show ipsla mpls lsp-monitor lpd
To display LSP Path Discovery (LPD) operational status, use the show ipsla mpls lsp-monitor lpd command in EXEC mode.
statistics group-ID
Displays statistics for the specified LPD group, including the latest LPD start time, return code, completion time, and paths.
aggregated group-ID
Displays the aggregated statistics of the LPD group.
summary group- ID
Displays the current LPD operational status, which includes LPD start time, return code, completion time, and all ECMP path information.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
For the aggregated group ID, a maximum of two buckets are allowed.
Task ID
Examples
The following sample output is from the show ipsla mpls lsp-monitor lpd statistics command:
RP/0/RP0/CPU0:router# show ipsla mpls lsp-monitor lpd statistics 10001 Group ID: 100001 Latest path discovery start time : 00:41:01.129 UTC Sat Dec 10 2005 Latest path discovery return code : OK Latest path discovery completion time (ms): 3450 Completion Time Values: NumOfCompT: 1 CompTMin: 3450 CompTMax : 3450 CompTAvg: 3450 Number of Paths Values: NumOfPaths: 10 MinNumOfPaths: 10 MaxNumOfPaths: 10
This table describes the significant fields shown in the display.
Table 5 show ipsla mpls lsp-monitor lpd statistics Field DescriptionsField
Description
Group ID
LPD group ID number.
Latest path discovery start time
LPD start time.
Latest path discovery return code
LPD return code.
Latest path discovery completion time
LPD completion time.
Completion Time Values
Completion time values, consisting of Number of Completion Time samples and Minimum Completion Time.
Number of Paths Values
Number of paths values, consisting of Minimum number of paths and Maximum number of paths.
show ipsla mpls lsp-monitor scan-queue
To display information about BGP next-hop addresses that are waiting to be added to or deleted from the MPLS label switched path (LSP) monitor instance, use the show ipsla mpls lsp-monitor scan-queue command in EXEC mode.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If the monitor-id argument is not specified, the scan-queue is displayed for all MPLS LSP monitor instances.
Task ID
Examples
The following sample output is from the show ipsla mpls lsp-monitor scan-queue command:
RP/0/RP0/CPU0:router# show ipsla mpls lsp-monitor scan-queue 1 IPSLA MPLS LSP Monitor : 1 Next scan Time after : 23 seconds Next Delete scan Time after: 83 seconds BGP Next hop Prefix Add/Delete? 192.255.0.2 192.255.0.2/32 Add 192.255.0.3 192.255.0.5/32 Delete
This table describes the significant fields shown in the display.
Table 6 show ipsla responder statistics port Field DescriptionsField
Description
IPSLA MPLS LSP Monitor
Monitor identifier.
Next scan Time after
Amount of time before the MPLS LSP monitor instance checks the scan queue for adding BGP next-hop neighbors. At the start of each scan time, IP SLA operations are created for all newly discovered neighbors.
Next delete Time after
Amount of time left before the MPLS LSP monitor instance checks the scan queue for deleting BGP next-hop neighbors. At the start of each delete scan time, IP SLAs operations are deleted for neighbors that are no longer valid.
BGP next hop
Identifier for the BGP next-hop neighbor.
Prefix
IPv4 Forward Equivalence Class (FEC) of the BGP next-hop neighbor to be used.
Add/Delete
Indicates that the specified BGP next-hop neighbor will be added or removed.
show ipsla mpls lsp-monitor summary
To display the list of operations that have been created automatically by the specified MPLS LSP monitor (MPLSLM) instance, use the show ipsla mpls lsp-monitor summary command in EXEC mode.
Syntax Description
monitor-id
(Optional) Displays a list of LSP group, ping, and trace operations created automatically by the specified MPLSLM instance.
group group-id
(Optional) Displays the ECMP LSPs found through ECMP path discovery within the specified LSP group.
Command History
Release
Modification
Release 3.5.0
This command was introduced.
Release 3.7.0
Show output response was expanded to add a pending status when waiting for an LSP ping or trace response.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The show ipsla mpls lsp-monitor summary command shows the list of LSP operations that were created automatically by the specified MPLS LSP monitor instance. It also shows the current status and the latest operation time of each operation.
If the monitor-id argument is not specified, the list of operations is displayed for all MPLS LSP monitor instances.
The show ipsla mpls lsp-monitor summary command with the group option shows the list of ECMP paths that are found automatically by the specified LSP path discovery (LPD). In addition, this command with option shows the current status; the number of successes, failures; the most recent round trip time (RTT); and the latest operation time of each path.
If the group-id argument is not specified, the list of paths is displayed for all operations created by the MPLS LSP monitor instance.
Task ID
Examples
The following sample output is from the show ipsla mpls lsp-monitor summary command. This output shows a pending status when an MPLS LSP ping operation is waiting to receive the timeout response from the LSP Verification (LSPV) process.
RP/0/RP0/CPU0:router# show ipsla mpls lsp-monitor summary 1 MonID Op/GrpID TargetAddress Status Latest Operation Time 1 100001 192.255.0.4/32 up 19:33:37.915 EST Mon Feb 28 2005 1 100002 192.255.0.5/32 down 19:33:47.915 EST Mon Feb 28 2005 1 100003 192.255.0.6/32 pending 19:33:35.915 EST Mon Feb 28 2005The following sample output shows that a down status is displayed after a timeout response is received.
RP/0/RP0/CPU0:router# show ipsla mpls lsp-monitor summary 1 MonID Op/GrpID TargetAddress Status Latest Operation Time 1 100001 193.100.0.1/32 down 12:47:16.417 PST Tue Oct 23 2007 1 100002 193.100.0.2/32 partial 12:47:22.418 PST Tue Oct 23 2007 1 100003 193.100.0.3/32 partial 12:47:22.429 PST Tue Oct 23 2007 1 100004 193.100.0.4/32 down 12:47:16.429 PST Tue Oct 23 2007 1 100005 193.100.0.5/32 down 12:47:21.428 PST Tue Oct 23 2007
This table describes the significant fields shown in the display.
Table 7 show ipsla mpls lsp-monitor summary Field DescriptionsField
Description
MonID
Monitor identifier.
Op/GrpID
Operation identifiers that have been created by this MPLS LSP monitor instance.
TargetAddress
IPv4 Forward Equivalence Class (FEC) to be used by this operation.
Status
Status of the paths. Values can be as follows:
Latest Operation Time
Time the latest operation cycle was issued.
The following sample output is from the show ipsla mpls lsp-monitor summary group command:
RP/0/RP0/CPU0:router# show ipsla mpls lsp-monitor summary 1 group 100001 GrpID LSP-Selector Status Failure Success RTT Latest Operation Time 100001 127.0.0.13 up 0 78 32 20:11:37.895 EST Feb 28 2005 100001 127.0.0.15 retry 1 77 0 20:11:37.995 EST Feb 28 2005 100001 127.0.0.16 up 0 78 32 20:11:38.067 EST Feb 28 2005 100001 127.0.0.26 up 0 78 32 20:11:38.175 EST Feb 28 2005
This table describes the significant fields shown in the display.
Table 8 show ipsla mpls lsp-monitor summary group Field DescriptionsField
Description
GrpID
Group identifer that has been created by this MPLS LSP monitor instance.
LSP-Selector
LSP selector address.
Status
Status of the paths. Values can be as follows:
Failure
Number of failures.
Success
Number of successes.
RTT
Round Trip Time (RTT) in milliseconds of the latest LSP echo request for the path.
Latest Operation Time
Time the latest operation cycle was issued for the path.
show ipsla responder statistics ports
To display the number of probes that are received or handled by the currently active ports on the responder, use the show ipsla responder statistics ports command in EXEC mode.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The output of the show ipsla responder statistics port command is available only for specific intervals of time in which only nonpermanent ports are being used at the responder. The reason is that the responder closes the nonpermanent ports after each operation cycle. However, if both permanent and nonpermanent ports are used, the output always contains rows for the permanent ports. The rows for the nonpermanent ports are displayed only if those nonpermanent ports are enabled at the instant the command is issued.
Task ID
Examples
The following sample output is from the show ipsla responder statistics port command:
RP/0/RP0/CPU0:router# show ipsla responder statistics port Port 12709 Local Address ... NumberOfProbes 2 Port 12213 Local Address ... NumberOfProbes 1 Port 55690 Local Address ... NumberOfProbes 376
This table describes the significant fields shown in the display.
Table 9 show ipsla responder statistics port Field DescriptionsField
Description
Port
Port number at which the responder is waiting for probe packets.
Local Address
IP address at which the responder is waiting for probe packets.
NumberOfProbes
Number of packets at which the responder has received for both control packets and probe packets.
show ipsla statistics
To display the operational data and the latest statistics for the IP SLA operation in tabular format, use the show ipsla statistics command in EXEC mode.
Syntax Description
operation-number
(Optional) Operation for which the latest statistics are to be displayed. Range is 1 to 2048.
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.6.0
Show output was expanded to include path information for LSP groups.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The output of the show ipsla statistics command varies depending on the operation type. The following sample output is from the show ipsla statistics command for an ICMP echo operation:
RP/0/RP0/CPU0:router# show ipsla statistics 100025 Entry number: 100025 Modification time: 00:36:58.602 UTC Sat Dec 10 2007 Start time : 00:36:58.605 UTC Sat Dec 10 2007 Number of operations attempted: 5 Number of operations skipped : 0 Current seconds left in Life : Forever Operational state of entry : Active Connection loss occurred : FALSE Timeout occurred : FALSE Latest RTT (milliseconds) : 3 Latest operation start time : 00:41:01.129 UTC Sat Dec 10 2007 Latest operation return code : OK RTT Values: RTTAvg : 71 RTTMin: 71 RTTMax : 71 NumOfRTT: 1 RTTSum: 71 RTTSum2: 729 Path Information: Path Path LSP Outgoing Nexthop Downstream Idx Sense Selector Interface Address Label Stack 1 1 127.0.0.13 PO0/2/5/0 192.12.1.2 38 2 1 127.0.0.6 PO0/2/5/0 192.12.1.2 38 3 1 127.0.0.1 PO0/2/5/0 192.12.1.2 38 4 1 127.0.0.2 PO0/2/5/0 192.12.1.2 38 5 1 127.0.0.13 PO0/2/5/1 192.12.2.2 38 6 1 127.0.0.6 PO0/2/5/1 192.12.2.2 38 7 1 127.0.0.1 PO0/2/5/1 192.12.2.2 38 8 1 127.0.0.2 PO0/2/5/1 192.12.2.2 38 9 1 127.0.0.4 Gi0/2/0/0 192.15.1.2 38 10 1 127.0.0.5 Gi0/2/0/0 192.15.1.2 38
This table describes the significant fields shown in the display.
Table 10 show ipsla statistics Field DescriptionsField
Description
Entry number
Entry number.
Modification time
Latest time the operation was modified.
Start time
Time the operation was started.
Number of operations attempted
Number of operation cycles that were issued.
Number of operations skipped
Number of operation cycles that were not issued because one of the cycles extended over the configured time interval.
Current seconds left in Life
Time remaining until the operation stops execution.
Operational state of entry
State of the operation, such as active state, pending state, or inactive state.
Connection loss occurred
Whether or not a connection-loss error happened.
Timeout occurred
Whether or not a timeout error happened.
Latest RTT (milliseconds)
Value of the latest RTT sample.
Latest operation start time
Time the latest operation cycle was issued.
Latest operation return code
Return code of the latest operation cycle
RTTAvg
Average RTT value that is observed in the last cycle.
RTTMin
Minimum RTT value that is observed in the last cycle.
RTTMax
Maximum RTT value that is observed in the last cycle.
NumOfRTT
Number of successful round trips.
RTTSum
Sum of all successful round-trip values in milliseconds.
RTTSum2
Sum of squares of the round-trip values in milliseconds.
Path Idx
Path index number.
Path Sense
Response return code for the path. (See Table 1, in show ipsla history command.)
LSP Selector
LSP selector address of the path.
Outgoing Interface
Outgoing interface of the path.
Nexthop Address
Next hop address of the path.
Downstream Label Stack
MPLS label stacks of the path.
show ipsla statistics aggregated
To display the hourly statistics for all the IP SLA operations or specified operation, use the show ipsla statistics aggregated command in EXEC mode.
Syntax Description
detail
Displays detailed information.
operation-number
(Optional) Number of IP SLA operations. Range is 1 to 2048.
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.6.0
Show output was expanded to include detailed information when path discovery is enabled.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The show ipsla statistics aggregated command displays information such as the number of failed operations and the reason for failure. Unless you configured a different amount of time for the buckets command (statistics command with hourly keyword), the show ipsla statistics aggregated command displays the information collected over the past two hours.
For one-way delay and jitter operations to be computed for UDP jitter operations, the clocks on local and target devices must be synchronized using NTP or GPS systems. If the clocks are not synchronized, one-way measurements are discarded. If the sum of the source to destination (SD) and the destination to source (DS) values is not within 10 percent of the round-trip time, the one-way measurement values are assumed to be faulty, and are discarded.
Task ID
Examples
The output of the show ipsla statistics aggregated command varies depending on operation type. The following sample output shows the aggregated statistics for UDP echo operation from the show ipsla statistics aggregated command:
RP/0/RP0/CPU0:router# show ipsla statistics aggregated 1 Entry number: 1 Hour Index: 0 Start Time Index: 21:02:32.510 UTC Mon Dec 12 2005 Number of Failed Operations due to a Disconnect : 0 Number of Failed Operations due to a Timeout : 0 Number of Failed Operations due to a Busy : 0 Number of Failed Operations due to a No Connection : 0 Number of Failed Operations due to an Internal Error: 0 Number of Failed Operations due to a Sequence Error : 0 Number of Failed Operations due to a Verify Error : 0 RTT Values: RTTAvg : 6 RTTMin: 4 RTTMax : 38 NumOfRTT: 36 RTTSum: 229 RTTSum2: 2563The following sample output is from the show ipsla statistics aggregated command in which operation 10 is a UDP jitter operation:
RP/0/RP0/CPU0:router# show ipsla statistics aggregated 10 Entry number: 10 Hour Index: 0 Start Time Index: 00:35:07.895 UTC Thu Mar 16 2006 Number of Failed Operations due to a Disconnect : 0 Number of Failed Operations due to a Timeout : 0 Number of Failed Operations due to a Busy : 0 Number of Failed Operations due to a No Connection : 0 Number of Failed Operations due to an Internal Error: 0 Number of Failed Operations due to a Sequence Error : 0 Number of Failed Operations due to a Verify Error : 0 RTT Values: RTTAvg : 14 RTTMin: 2 RTTMax : 99 NumOfRTT: 70 RTTSum: 1034 RTTSum2: 60610 Packet Loss Values: PacketLossSD : 0 PacketLossDS: 0 PacketOutOfSequence: 0 PacketMIA : 0 PacketLateArrival : 0 Errors : 0 Busies : 0 Jitter Values : MinOfPositivesSD: 1 MaxOfPositivesSD: 19 NumOfPositivesSD: 17 SumOfPositivesSD: 65 Sum2PositivesSD : 629 MinOfNegativesSD: 1 MaxOfNegativesSD: 16 NumOfNegativesSD: 24 SumOfNegativesSD: 106 Sum2NegativesSD : 914 MinOfPositivesDS: 1 MaxOfPositivesDS: 7 NumOfPositivesDS: 17 SumOfPositivesDS: 44 Sum2PositivesDS : 174 MinOfNegativesDS: 1 MaxOfNegativesDS: 8 NumOfNegativesDS: 24 SumOfNegativesDS: 63 Sum2NegativesDS : 267 Interarrival jitterout: 0 Interarrival jitterin: 0 One Way Values : NumOfOW: 0 OWMinSD : 0 OWMaxSD: 0 OWSumSD: 0 OWSum2SD: 0 OWMinDS : 0 OWMaxDS: 0 OWSumDS: 0
This table describes the significant fields shown in the display.
Table 11 show ipsla statistics aggregated Field DescriptionsField
Description
Busies
Number of times that the operation cannot be started because the previously scheduled run was not finished.
Entry Number
Entry number.
Hop in Path Index
Hop in path index.
Errors
Number of internal errors.
Jitter Values
Jitter statistics appear on the specified lines. Jitter is defined as interpacket delay variance.
NumOfJitterSamples
Number of jitter samples that are collected. The number of samples are used to calculate the jitter statistics.
Number of Failed Operations due to a Disconnect
Number of failed operations due to a disconnect.
Number of Failed Operations due to a Timeout
Number of failed operations due to a timeout.
Number of Failed Operations due to a Busy
Number of failed operations due to a busy error.
Number of Failed Operations due to a No Connection
Error that refers to the case in which the control connection cannot be established.
Number of Failed Operations due to an Internal Error
Number of failed operations due to an internal error.
Number of Failed Operations due to a Sequence Error
Number of failed operations due to a sequence error.
Number of Failed Operations due to a Verify Error
Number of failed operations due to a verify error.
MaxOfNegativesSD
Maximum negative jitter values from the source to the destination. The absolute value is given.
MaxOfPositivesSD
Maximum jitter values from the source to the destination in milliseconds.
MaxOfPositivesDS
Maximum jitter values from the destination to the source in milliseconds.
MaxOfNegativesDS
Maximum negative jitter values from destination-to-source. The absolute value is given.
MinOfPositivesDS
Minimum jitter values from the destination to the source in milliseconds.
MinOfNegativesSD
Minimum negative jitter values from the source to the destination. The absolute value is given.
MinOfPositivesSD
Minimum jitter values from the source to the destination in milliseconds.
MinOfNegativesDS
Minimum negative jitter values from the destination to the source. The absolute value is given.
NumOfOW
Number of successful one-way time measurements.
NumOfNegativesDS
Number of jitter values from the destination to the source that are negative; for example, network latency decreases for two consecutive test packets.
NumOfNegativesSD
Number of jitter values from the source to the destination that are negative; for example, network latency decreases for two consecutive test packets.
NumOfPositivesDS
Number of jitter values from the destination to the source that are positive; for example, network latency increases for two consecutive test packets.
NumOfPositivesSD
Number of jitter values from the source to the destination that are positive; for example, network latency increases for two consecutive test packets.
NumOfRTT
Number of successful round trips.
One Way Values
One-way measurement statistics appear on the specified lines. One Way (OW) values are the amount of time that it took the packet to travel from the source router to the target router or from the target router to the source router.
OWMaxDS
Maximum time from the destination to the source.
OWMaxSD
Maximum time from the source to the destination.
OWMinDS
Minimum time from the destination to the source.
OWMinSD
Minimum time from the source to the destination.
OWSumDS
Sum of one-way delay values from the destination to the source.
OWSumSD
Sum of one-way delay values from the source to the destination.
OWSum2DS
Sum of squares of one-way delay values from the destination to the source.
OWSum2SD
Sum of squares of one-way delay values from the source to the destination.
PacketLateArrival
Number of packets that arrived after the timeout.
PacketLossDS
Number of packets lost from the destination to the source (DS).
PacketLossSD
Number of packets lost from the source to the destination (SD).
PacketMIA
Number of packets lost in which the SD direction or DS direction cannot be determined.
PacketOutOfSequence
Number of packets that are returned out of order.
Path Index
Path index.
Port Number
Target port number.
RTTSum
Sum of all successful round-trip values in milliseconds.
RTTSum2
Sum of squares of the round-trip values in milliseconds.
RTT Values
Round-trip time statistics appear on the specified lines.
Start Time
Start time, in milliseconds.
Start Time Index
Statistics that are aggregated for over 1-hour intervals. The value indicates the start time for the 1-hour interval that is displayed.
SumOfPositivesDS
Sum of the positive jitter values from the destination to the source.
SumOfPositivesSD
Sum of the positive jitter values from the source to the destination.
SumOfNegativesDS
Sum of the negative jitter values from the destination to the source.
SumOfNegativesSD
Sum of the negative jitter values from the source to the destination.
Sum2PositivesDS
Sum of squares of the positive jitter values from the destination to the source.
Sum2PositivesSD
Sum of squares of the positive jitter values from the source to the destination.
Sum2NegativesDS
Sum of squares of the negative jitter values from the destination to the source.
Sum2NegativesSD
Sum of squares of the negative jitter values from the source to the destination.
Target Address
Target IP address.
The output of the show ipsla statistics aggregated detail command varies depending on operation type. The following sample output is from the show ipsla statistics aggregated detail command in tabular format, when the output is split over multiple lines:
RP/0/RP0/CPU0:router# show ipsla statistics aggregated detail 2 Captured Statistics Multiple Lines per Entry Line1: Entry = Entry number StartT = Start time of entry (hundredths of seconds) Pth = Path index Hop = Hop in path index Dst = Time distribution index Comps = Operations completed SumCmp = Sum of RTT (milliseconds) Line2: SumCmp2H = Sum of RTT squared high 32 bits (milliseconds) SumCmp2L = Sum of RTT squared low 32 bits (milliseconds) TMax = RTT maximum (milliseconds) TMin = RTT minimum (milliseconds) Entry StartT Pth Hop Dst Comps SumCmp SumCmp2H SumCmp2L TMax TMin 2 1134423910701 1 1 0 12 367 0 1231 6 6 2 1134423851116 1 1 1 2 129 0 2419 41 41 2 1134423070733 1 1 2 1 101 0 1119 16 16 2 0 1 1 3 0 0 0 0 0 0
This table describes the significant fields shown in the display.
Table 12 show ipsla statistics aggregated detail Field DescriptionsField
Description
Entry
Entry number.
StartT
Start time of entry, in hundredths of seconds.
Pth
Path index.
Hop
Hop in path index.
Dst
Time distribution index.
Comps
Operations completed.
SumCmp
Sum of completion times, in milliseconds.
SumCmp2L
Sum of completion times squared low 32 bits, in milliseconds.
SumCmp2H
Sum of completion times squared high 32 bits, in milliseconds.
TMax
Completion time maximum, in milliseconds.
TMin
Completion time minimum, in milliseconds.
The following sample output is from the show ipsla statistics aggregated command when a path discovery operation is enabled.
Data following the hourly index is aggregated for all paths in the group during the given hourly interval.
RP/0/RP0/CPU0:router# show ipsla statistics aggregated 100041 Entry number: 100041 Hour Index: 13 <The following data after the given hourly index is aggregated for all paths in the group during the given hourly interval.> Start Time Index: 12:20:57.323 UTC Tue Nov 27 2007 Number of Failed Operations due to a Disconnect : 0 Number of Failed Operations due to a Timeout : 249 Number of Failed Operations due to a Busy : 0 Number of Failed Operations due to a No Connection : 0 Number of Failed Operations due to an Internal Error: 0 Number of Failed Operations due to a Sequence Error : 0 Number of Failed Operations due to a Verify Error : 0 <end> RTT Values: RTTAvg : 21 RTTMin: 19 RTTMax : 73 NumOfRTT: 2780 RTTSum: 59191 RTTSum2: 1290993 <The following data for LSP path information is available after path discovery is enabled.> Path Information: Path Path LSP Outgoing Nexthop Downstream Idx Sense Selector Interface Address Label Stack 1 1 127.0.0.1 Gi0/4/0/0 192.39.1.1 677 2 1 127.0.0.1 Gi0/4/0/0.1 192.39.2.1 677 3 1 127.0.0.1 Gi0/4/0/0.2 192.39.3.1 677 4 1 127.0.0.1 Gi0/4/0/0.3 192.39.4.1 677 5 1 127.0.0.8 Gi0/4/0/0 192.39.1.1 677 6 1 127.0.0.8 Gi0/4/0/0.1 192.39.2.1 677 7 1 127.0.0.8 Gi0/4/0/0.2 192.39.3.1 677 8 1 127.0.0.8 Gi0/4/0/0.3 192.39.4.1 677 <end> Hour Index: 14 Start Time Index: 13:20:57.323 UTC Tue Nov 27 2007 Number of Failed Operations due to a Disconnect : 0 Number of Failed Operations due to a Timeout : 122 Number of Failed Operations due to a Busy : 0 Number of Failed Operations due to a No Connection : 0 Number of Failed Operations due to an Internal Error: 0 Number of Failed Operations due to a Sequence Error : 0 Number of Failed Operations due to a Verify Error : 0 RTT Values: RTTAvg : 21 RTTMin: 19 RTTMax : 212 NumOfRTT: 3059 RTTSum: 65272 RTTSum2: 1457612 Path Information: Path Path LSP Outgoing Nexthop Downstream Idx Sense Selector Interface Address Label Stack 1 1 127.0.0.1 Gi0/4/0/0 192.39.1.1 677 2 1 127.0.0.1 Gi0/4/0/0.1 192.39.2.1 677 3 1 127.0.0.1 Gi0/4/0/0.2 192.39.3.1 677 4 1 127.0.0.1 Gi0/4/0/0.3 192.39.4.1 677 5 1 127.0.0.8 Gi0/4/0/0 192.39.1.1 677 6 1 127.0.0.8 Gi0/4/0/0.1 192.39.2.1 677 7 1 127.0.0.8 Gi0/4/0/0.2 192.39.3.1 677 8 1 127.0.0.8 Gi0/4/0/0.3 192.39.4.1 677
This table describes the significant fields shown in the display.
Table 13 show ipsla statistics aggregated (with Path Discovery enabled) Field DescriptionsField
Description
Entry Number
Entry number.
Start Time Index
Start time.
Number of Failed Operations due to a Disconnect
Number of failed operations due to a disconnect.
Number of Failed Operations due to a Timeout
Number of failed operations due to a timeout.
Number of Failed Operations due to a Busy
Number of failed operations due to a busy error.
Number of Failed Operations due to a No Connection
Error that refers to the case in which the control connection cannot be established.
Number of Failed Operations due to an Internal Error
Number of failed operations due to an internal error.
Number of Failed Operations due to a Sequence Error
Number of failed operations due to a sequence error.
Number of Failed Operations due to a Verify Error
Number of failed operations due to a verify error.
RTT Values
Round-trip time statistics appear on the specified lines.
RTT Min/Avg/Max
Maximum values of the RTT that are observed in the latest cycle (*).
NumOfRTT
Number of successful round trips.
RTT Sum
Sum of all successful round-trip values, in milliseconds.
RTT Sum2
Sum of squares of the round-trip values, in milliseconds.
RTT Min/Avg/Max
Maximum values of the RTT that are observed in the latest cycle (*).
NumOfRTT
Number of successful round trips.
Path Idx
Path index number.
Path Sense
Response return code for the path. (See Table 1, in show ipsla history command.)
LSP Selector
LSP selector address of the path.
Outgoing Interface
Outgoing interface name of the path.
Nexthop Address
Next hop address of the path.
Downstream Label Stack
MPLS label stacks of the path.
show ipsla statistics enhanced aggregated
To display the enhanced history statistics for all collected enhanced history buckets for the specified IP SLA operation, use the show ipsla statistics enhanced aggregated command in EXEC mode.
Syntax Description
operation-number
(Optional) Operation number for which to display the enhanced history distribution statistics.
interval seconds
(Optional) Specifies the aggregation interval in seconds for which to display the enhanced history distribution statistics.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The show ipsla statistics enhanced aggregated command displays data for each bucket of enhanced history data shown individually; for example, one after the other. The number of buckets and the collection interval is set using the interval keyword, seconds argument, buckets keyword, and number-of-buckets argument.
Task ID
Examples
The output of the show ipsla statistics enhanced aggregated command varies depending on the operation type. The following sample output is from the show ipsla statistics enhanced aggregated command for the UDP echo operation:
RP/0/RP0/CPU0:router# show ipsla statistics enhanced aggregated 20 Entry number: 20 Interval : 300 seconds Bucket : 1 (0 - 300 seconds) Start Time Index: 00:38:14.286 UTC Thu Mar 16 2006 Number of Failed Operations due to a Disconnect : 0 Number of Failed Operations due to a Timeout : 0 Number of Failed Operations due to a Busy : 0 Number of Failed Operations due to a No Connection : 0 Number of Failed Operations due to an Internal Error: 0 Number of Failed Operations due to a Sequence Error : 0 Number of Failed Operations due to a Verify Error : 0 RTT Values: RTTAvg : 2 RTTMin: 2 RTTMax : 5 NumOfRTT: 5 RTTSum: 13 RTTSum2: 41 Bucket : 2 (300 - 600 seconds) Start Time Index: 00:43:12.747 UTC Thu Mar 16 2006 Number of Failed Operations due to a Disconnect : 0 Number of Failed Operations due to a Timeout : 0 Number of Failed Operations due to a Busy : 0 Number of Failed Operations due to a No Connection : 0 Number of Failed Operations due to an Internal Error: 0 Number of Failed Operations due to a Sequence Error : 0 Number of Failed Operations due to a Verify Error : 0 RTT Values: RTTAvg : 2 RTTMin: 2 RTTMax : 2 NumOfRTT: 1 RTTSum: 2 RTTSum2: 4
This table describes the significant fields shown in the display.
Table 14 show ipsla statistics enhanced aggregated Field DescriptionsField
Description
Entry Number
Entry number.
Interval
Multiple of the frequency of the operation. The Enhanced interval field defines the interval in which statistics displayed by the show ipsla statistics enhanced aggregated command are aggregated. This field must be configured so that the enhanced aggregated statistics are displayed.
Bucket
Bucket index.
Start Time Index
Statistics that are aggregated depend on the interval configuration mode. The value depends on the interval configuration that is displayed.
RTT Values
Round-trip time statistics appear on the specified lines.
RTT Min/Avg/Max
Maximum values of the RTT that are observed in the latest cycle (*).
NumOfRTT
Number of successful round trips.
RTT Sum
Sum of all successful round-trip values, in milliseconds.
RTT Sum2
Sum of squares of the round-trip values, in milliseconds.
Number of Failed Operations due to a Disconnect
Number of failed operations due to a disconnect.
Number of Failed Operations due to a Timeout
Number of failed operations due to a timeout.
Number of Failed Operations due to a Busy
Number of failed operations due to a busy error.
Number of Failed Operations due to a No Connection
Error that refers to the case in which the control connection cannot be established.
Number of Failed Operations due to an Internal Error
Number of failed operations due to an internal error.
Number of Failed Operations due to a Sequence Error
Number of failed operations due to a sequence error.
Number of Failed Operations due to a Verify Error
Number of failed operations due to a verify error.
source address
To identify the address of the source device, use the source address command in the appropriate configuration mode. To use the best local address, use the no form of this command.
Syntax Description
Command Default
IP SLA finds the best local address to the destination and uses it as the source address.
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.4.0
Support was added for IP SLA MPLS LSP Ping and IP SLA MPLS LSP Trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to designate an IP address for the source address command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# source address 192.0.2.9source port
To identify the port of the source device, use the source port command in the appropriate configuration mode. To use the unused port number, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The source port command is not supported to configure ICMP operations; it is supported only to configure UDP operations.
Task ID
Examples
The following example shows how to designate a port for the source port command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# source port 11111start-time
To determine the time when the operation or MPLS LSP monitor instance starts, use the start-time command in the appropriate configuration mode. To stop the operation and place it in the default state, use the no form of this command.
Syntax Description
hh:mm:ss
Absolute start time in hours, minutes, and seconds. You can use the 24-hour clock notation. For example, the start-time 01:02 is defined as 1:02 am, or start-time 13:01:30 is defined as start at 1:01 pm. and 30 seconds. The current day is used; unless, you specify a month and day.
month
(Optional) Name of the month to start the operation. When you use the month argument, you are required to specify a day. You can specify the month by using the full English name or the first three letters of the month.
day
(Optional) Number of the day, in the range of 1 to 31, to start the operation. In addition, you must specify a month.
year
(Optional) Year in the range of 1993 to 2035.
after hh:mm:ss
Specifies that the operation starts at hh hours, mm minutes, and ss seconds after the start-time command is used.
now
Specifies that the operation should start immediately.
pending
Specifies that no information is collected. The default value is the pending keyword.
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor schedule configuration mode.
Release 3.7.0
Added the ability to specify a year.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If the start-time command is used in IP SLA operation mode, it configures the start time for the specific operation being configured. If the start-time command is used in IP SLA MPLS LSP monitor mode, it configures the start time for all monitor instances associated with the monitored provider edge (PE) routers.
Task ID
Examples
The following example shows how to use the start-time command option for the schedule operation:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# schedule operation 1 RP/0/RP0/CPU0:router(config-ipsla-sched)# start-time after 01:00:00The following example shows how to use the start-time command in IP SLA MPLS LSP monitor schedule configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# schedule monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-sched)# start-time after 01:00:00The following example shows how to use the start-time command and specify a year for a scheduled operation:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla operation 2 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp echo RP/0/RP0/CPU0:router(config-ipsla-icmp-echo)# destination address 192.0.2.9 RP/0/RP0/CPU0:router(config-ipsla-icmp-echo)# exit RP/0/RP0/CPU0:router(config-ipsla-op)# exit RP/0/RP0/CPU0:router(config-ipsla)# schedule operation 2 RP/0/RP0/CPU0:router(config-ipsla-sched)# start 20:0:0 february 7 2008 RP/0/RP0/CPU0:router(config-ipsla-sched)#Related Commands
statistics
To set the statistics collection parameters for the operation, use the statistics command in the appropriate configuration mode. To remove the statistics collection or use the default value, use the no form of this command.
Syntax Description
hourly
Sets the distribution for statistics configuration that is aggregated for over an hour.
interval seconds
Collects statistics over a specified time interval. Interval (in seconds) over which to collect statistics. Range is 1 to 3600 seconds.
Command Modes
IP SLA operation UDP jitter configuration
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The statistics interval command is not supported for the configuration of ICMP path-echo and ICMP path-jitter operations, nor for the configuration of MPLS LSP monitor instances.
If the statistics command is used in IP SLA operation mode, it configures the statistics collection for the specific operation being configured. If the statistics command is used in IP SLA MPLS LSP monitor mode, it configures the statistics collection for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to set the number of hours in which statistics are maintained for the IP SLA UDP jitter operation for the statistics command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# statistics hourly RP/0/RP0/CPU0:router(config-ipsla-op-stats)#The following example shows how to collect statistics for a specified time interval, using the statistics command in an IP SLA UDP jitter operation:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# statistics interval 60 RP/0/RP0/CPU0:router(config-ipsla-op-stats)#The following example shows how to set the number of hours in which statistics are maintained for the IP SLA MPLS LSP monitor ping operation, using the statistics command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# statistics hourly RP/0/RP0/CPU0:router(config-ipsla-mplslm-stats)#Related Commands
Command
Description
Sets the number of hours in which statistics are kept.
Refers to the data buckets in which the enhanced history statistics are kept ,
Sets the number of statistics distributions that are kept for each hop during the lifetime of the IP SLA operation.
Sets the time interval (in milliseconds) for each statistical distribution.
Configures an IP SLA MPLS LSP monitor instance.
Configures MPLS label switched path (LSP) monitoring.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Sets the number of hops in which statistics are maintained for each path for the IP SLA operation.
Sets the number of paths in which statistics are maintained for each hour for an IP SLA operation.
tag (IP SLA)
To create a user-specified identifier for an IP SLA operation, use the tag command in the appropriate configuration mode. To unset the tag string, use the no form of this command.
Syntax Description
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.4.0
Support was added for IP SLA MPLS LSP ping and IP SLA MPLS LSP trace configuration modes.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If the tag command is used in IP SLA operation mode, it configures the user-defined tag string for the specific operation being configured. If the tag command is used in IP SLA MPLS LSP monitor mode, it configures the user-defined tag string for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the tag command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# tag ipslaThe following example shows how to use the tag command in IP SLA MPLS LSP monitor ping configuration mode:
RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 1 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# tag mplslm-tagtarget ipv4
To specify the IPv4 address of the target router to be used in an MPLS LSP ping or MPLS LSP trace operation, use the target ipv4 command in the appropriate configuration mode. To unset the address, use the no form of this command.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the target ipv4 command to specify the IPv4 address of the target router at the end of the LSP to be tested or traced and to indicate the destination as an Label Distribution Protocol (LDP) IPv4 address. The target IPv4 address identifies the appropriate label stack associated with the LSP.
Note
Using the target ipv4 command, you can configure only one LDP IPv4 address as the target in an MPLS LSP ping or trace operation. If you enter the command a second time and configure a different IPv4 target address, you overwrite the first IPv4 address.
An MPLS LSP ping operation tests connectivity in the LSP using verification on the specified Forwarding Equivalence Class (FEC)— in this case, LDP IPv4 prefix—between the ping origin and the egress node identified with the target ipv4 command. This test is carried out by sending an MPLS echo request along the same data path as other packets belonging to the FEC. When the ping packet reaches the end of the path, it is sent to the control plane of the egress label switching router (LSR), which then verifies that it is indeed an egress for the LSP. The MPLS echo request contains information about the LSP that is being verified.
In an MPLS network, an MPLS LSP trace operation traces LSP paths to the target router identified with the target ipv4 command. In the verification of LSP routes, a packet is sent to the control plane of each transit LSR, which performs various checks, including one that determines if it is a transit LSR for the LSP path. Each transit LSR also returns information related to the LSP being tested (that is, the label bound to the LDP IPv4 prefix).
Task ID
Examples
The following example shows how to use the target ipv4 command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-ping)# target ipv4 192.168.1.4 255.255.255.255target pseudowire
To specify the pseudowire as the target to be used in an MPLS LSP ping operation, use the target pseudowire command in IP SLA MPLS LSP ping configuration mode. To unset the target, use the no form of this command.
Syntax Description
destination-address
IPv4 address of the target device to be tested.
circuit-id
Virtual circuit identifier. Range is 1 to 4294967295.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the target pseudowire command to specify a target router and to indicate the destination as a Layer 2 VPN pseudowire in an MPLS LSP ping operation. The target pseudowire command identifies the target address and the virtual circuit (VC) identifier.
Note
Using the target pseudowire command, you can configure only one pseudowire address as the target in an MPLS LSP ping operation. If you use the command a second time and configure a different pseudowire target address, the first pseudowire address is overwritten.
A pseudowire target of the LSP ping operation allows active monitoring of statistics on Pseudowire Edge-to-Edge (PWE3) services across an MPLS network. PWE3 connectivity verification uses the Virtual Circuit Connectivity Verification (VCCV).
For more information on VCCV, refer to the VCCV draft, “Pseudowire Virtual Circuit Connectivity Verification (VCCV)” on the IETF web page.
Task ID
Examples
The following example shows how to use the target pseudowire command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)# target pseudowire 192.168.1.4 4211target traffic-eng
To specify the target MPLS traffic engineering tunnel to be used in an MPLS LSP ping or MPLS LSP trace operation, use the target traffic-eng command in the appropriate configuration mode. To unset the tunnel, use the no form of this command.
Syntax Description
tunnel tunnel-interface
Tunnel ID of an MPLS traffic-engineering tunnel (for example, tunnel 10) configured on the router. Range is 0 to 65535.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the target traffic-eng command to specify a target router and to indicate the destination as an MPLS traffic-engineering (TE) tunnel in an MPLS LSP ping or MPLS LSP trace operation. The target traffic-eng command identifies the tunnel interface and the appropriate label stack associated with the LSP to be pinged or traced. An LSP tunnel interface is the head-end of a unidirectional virtual link to a tunnel destination.
Note
Using the target traffic-eng command, you can configure only one MPLS TE tunnel as the target in an MPLS LSP ping or trace operation. If you enter the command a second time and configure a different tunnel interfaces, you overwrite the first tunnel ID.
An IP SLA ping operation tests connectivity in the LSP using verification on the specified Forwarding Equivalence Class (FEC)—in this case, MPLS TE tunnel—between the ping origin and the egress node identified with the target traffic-eng command. This test is carried out by sending an MPLS echo request along the same data path as other packets belonging to the tunnel. When the ping packet reaches the end of the path, it is sent to the control plane of the egress label switching router (LSR), which then verifies that it is indeed an egress for the MPLS TE tunnel. The MPLS echo request contains information about the tunnel whose LSP path is being verified.
In an MPLS network, an IP SLA trace operation traces the LSP paths to a target router identified with the target traffic-eng command. In the verification of LSP routes, a packet is sent to the control plane of each transit LSR, which performs various checks, including one that determines if it is a transit LSR for the LSP path. Each transit LSR also returns information related to the MPLS TE tunnel to see if the local forwarding information matches what the routing protocols determine as the LSP path.
MPLS traffic engineering automatically establishes and maintains LSPs across the backbone. The path that an LSP uses is determined by the LSP resource requirements and network resources, such as bandwidth.
For more information on MPLS traffic-engineering tunnels, refer to MPLS Traffic Engineering and Enhancements.
Task ID
Examples
The following example shows how to use the target traffic-eng tunnel command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)# target traffic-eng tunnel 101threshold
To set the lower-limit and upper-limit values, use the threshold command in IP SLA reaction condition configuration mode. To use the default value, use the no form of this command.
Syntax Description
lower-limit value
Specifies the threshold lower-limit value. Range is 1 to 4294967295 ms. Default lower-limit value is 3000 ms.
upper-limit value
Specifies the threshold upper-limit value. Range is 5000 to 4294967295 ms. Default upper-limit value is 5000 ms.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The threshold command is supported only when used with the react command and jitter-average and packet-loss keywords.
Task ID
Examples
The following example shows how to set the lower-limit and upper-limit values for the react command with the jitter-average keyword for the threshold command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react jitter-average RP/0/RP0/CPU0:router(config-ipsla-react-cond)# threshold lower-limit 8000 upper-limit 10000The following example shows how to set the lower-limit and upper-limit values for the react command with the packet-loss keyword for the threshold command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react packet-loss dest-to-source RP/0/RP0/CPU0:router(config-ipsla-react-cond)# threshold lower-limit 8000 upper-limit 10000Related Commands
Command
Description
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures certain actions that are based on events under the control of the IP SLA agent.
Specifies an element to be monitored for a reaction.
Takes action on average values to violate a threshold.
Takes action after a number of consecutive violations.
Takes action immediately upon a threshold violation.
Takes action upon X violations in Y probe operations.
threshold type average
To take action on average values to violate a threshold, use the threshold type average command in IP SLA reaction condition configuration mode. To clear the threshold type (reaction will never happen), use the no form of this command.
Syntax Description
number-of-probes
When the average of the last five values for the monitored element exceeds the upper threshold or the average of the last five values for the monitored element drops below the lower threshold, the action is performed as defined by the action command. Range is 1 to 16.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The threshold type average command is supported only when used with the react command and jitter-average, packet-loss, and rtt keywords.
Task ID
Examples
The following example shows how to set the number of probes for the react command with the jitter-average keyword for the threshold type average command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react jitter-average RP/0/RP0/CPU0:router(config-ipsla-react-cond)# threshold type average 8The following example shows how to set the number of probes for the react command with the packet-loss keyword for the threshold type average command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react packet-loss dest-to-source RP/0/RP0/CPU0:router(config-ipsla-react-cond)# threshold type average 8Related Commands
Command
Description
Specifies what action or combination of actions the operation performs.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures certain actions that are based on events under the control of the IP SLA agent.
Specifies an element to be monitored for a reaction.
Sets the lower-limit and upper-limit values.
Takes action after a number of consecutive violations.
Takes action immediately upon a threshold violation.
Takes action upon X violations in Y probe operations.
threshold type consecutive
To take action after a number of consecutive violations, use the threshold type consecutive command in the appropriate configuration mode. To clear the threshold type (reaction will never happen), use the no form of this command.
Syntax Description
occurrences
When the reaction condition is set for a consecutive number of occurrences, there is no default value. The number of occurrences is set when specifying the threshold type. The number of consecutive violations is 1 to 16.
Command Modes
IP SLA reaction condition configuration
IP SLA MPLS LSP monitor reaction condition configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor reaction condition configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If the threshold type consecutive command is used in IP SLA reaction condition mode, it configures the threshold for the specific operation being configured. If the threshold type consecutive command is used in IP SLA MPLS LSP monitor reaction condition configuration mode, it configures the threshold for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the threshold type consecutive command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react connection-loss RP/0/RP0/CPU0:router(config-ipsla-react-cond)# threshold type consecutive 8The following example shows how to use the threshold type consecutive command in IP SLA MPLS LSP monitor reaction condition configuration mode:
RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# reaction monitor 2 RP/0/RP0/CPU0:router(config-ipsla-mplslm-react)# react connection-loss RP/0/RP0/CPU0:router(config-ipsla-mplslm-react-cond)# threshold type consecutive 2Related Commands
Command
Description
Specifies what action or combination of actions the operation performs.
Configures MPLS label switched path (LSP) monitoring.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures MPLS LSP monitoring reactions.
Configures certain actions that are based on events under the control of the IP SLA agent.
Specifies an element to be monitored for a reaction.
Sets the lower-limit and upper-limit values.
Takes action on average values to violate a threshold.
Takes action immediately upon a threshold violation.
Takes action upon X violations in Y probe operations.
threshold type immediate
To take action immediately upon a threshold violation, use the threshold type immediate command in the appropriate configuration mode. To clear the threshold type (reaction will never happen), use the no form of this command.
Command Modes
IP SLA reaction condition configuration
IP SLA MPLS LSP monitor reaction condition configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor reaction condition configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
When the reaction conditions, such as threshold violations, are met for the monitored element, the action is immediately performed as defined by the action command.
If the threshold type immediate command is used in IP SLA reaction condition mode, it configures the threshold for the specific operation being configured. If the threshold type immediate command is used in IP SLA MPLS LSP monitor reaction condition configuration mode, it configures the threshold for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the threshold type immediate command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react timeout RP/0/RP0/CPU0:router(config-ipsla-react-cond)# threshold type immediateThe following example shows how to use the threshold type immediate command in IP SLA MPLS LSP monitor reaction condition configuration mode:
RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# reaction monitor 2 RP/0/RP0/CPU0:router(config-ipsla-mplslm-react)# react connection-loss RP/0/RP0/CPU0:router(config-ipsla-mplslm-react-cond)# threshold type immediateRelated Commands
Command
Description
Specifies what action or combination of actions the operation performs.
Configures MPLS label switched path (LSP) monitoring.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures MPLS LSP monitoring reactions.
Configures certain actions that are based on events under the control of the IP SLA agent.
Specifies an element to be monitored for a reaction.
Sets the lower-limit and upper-limit values.
Takes action on average values to violate a threshold.
Takes action after a number of consecutive violations.
Takes action upon X violations in Y probe operations.
threshold type xofy
To take action upon X violations in Y probe operations, use the threshold type xofy command in IP SLA reaction condition configuration mode. To clear the threshold type (reaction will never happen), use the no form of this command.
Syntax Description
x-value y-value
When the reaction conditions, such as threshold violations, are met for the monitored element after some x number of violations within some other y number of probe operations (for example, x of y), the action is performed as defined by the action command. Default is 5 for both x-value and y-value; for example, xofy 5 5. Range is 1 to 16.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the threshold type xofy command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# reaction operation 432 RP/0/RP0/CPU0:router(config-ipsla-react)# react verify-error RP/0/RP0/CPU0:router(config-ipsla-react-cond)# threshold type xofy 1 5Related Commands
Command
Description
Specifies what action or combination of actions the operation performs.
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures certain actions that are based on events under the control of the IP SLA agent.
Specifies an element to be monitored for a reaction.
Sets the lower-limit and upper-limit values.
Takes action on average values to violate a threshold.
Takes action after a number of consecutive violations.
Takes action immediately upon a threshold violation.
timeout (IP SLA)
To set the probe or control timeout interval, use the timeout command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
milliseconds
Sets the amount of time (in milliseconds) that the IP SLA operation waits for a response from the request packet. Range is 1 to 604800000.
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.3.0
This command was introduced.
Release 3.4.0
Support was added for IP SLA MPLS LSP ping and IP SLA MPLS LSP trace configuration modes.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If the timeout command is used in IP SLA operation mode, it configures the amount of time that a specific IP SLA operation waits for a response from the request packet. If the timeout command is used in IP SLA MPLS LSP monitor mode, it configures the amount of time that all operations associated with the monitored provider edge (PE) routers wait for a response from the request packet. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the timeout command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# timeout 10000The following example shows how to use the timeout command in IP SLA MPLS LSP monitor configuration mode:
RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 2 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)# timeout 10000tos
To set the type of service (ToS) in a probe packet, use the tos command in the appropriate configuration mode. To use the default value, use the no form of this command.
Syntax Description
Command Modes
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA ICMP path-jitter configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP echo configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The ToS value is an 8-bit field in IP headers. The field contains information, such as precedence and ToS. The information is useful for policy routing and for features like Committed Access Rate (CAR) in which routers examine ToS values. When the type of service is defined for an operation, the IP SLA probe packet contains the configured tos value in the IP header.
Task ID
Examples
The following example shows how to use the tos command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# tos 60ttl
To specify the time-to-live (TTL) value in the MPLS label of echo request packets, use the ttl command in the appropriate configuration mode. To return to the default value, use the no form of this command.
Syntax Description
Command Default
For an MPLS LSP ping operation, the default time-to-live value is 255.
For an MPLS LSP trace operations, the default time-to-live value is 30.
Command Modes
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor ping and monitor trace configuration modes.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the ttl command to set the maximum number of hops allowed for echo request packets in an MPLS LSP ping or MPLS LSP trace operation. Note that the number of possible hops differs depending the type of IP SLA operation:
- For MPLS LSP ping operations, valid values are from 1 to 255 and the default is 255.
- For MPLS LSP trace operations, valid values are from 1 to 30 and the default is 30.
If the ttl command is used in IP SLA operation mode, it configures the time-to-live value for the specific operation being configured. If the ttl command is used in IP SLA MPLS LSP monitor mode, it configures the time-to-live value for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the ttl command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-ping)# ttl 200type icmp echo
To use the ICMP echo operation type, use the type icmp echo command in IP SLA operation configuration mode. To remove the operation, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the type icmp echo command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp echo RP/0/RP0/CPU0:router(config-ipsla-icmp-echo)#type icmp path-echo
To use the ICMP path-echo operation type, use the type icmp path-echo command in IP SLA operation configuration mode. To remove the operation, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the type icmp path-echo command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp path-echo RP/0/RP0/CPU0:router(config-ipsla-icmp-path-echo)#type icmp path-jitter
To use the ICMP path-jitter operation type, use the type icmp path-jitter command in IP SLA operation configuration mode. To remove the operation, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the type icmp path-jitter command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type icmp path-jitter RP/0/RP0/CPU0:router(config-ipsla-icmp-path-jitter)#type mpls lsp ping
To verify the end-to-end connectivity of a label switched path (LSP) and the integrity of an MPLS network, use the type mpls lsp ping command in the appropriate configuration mode. To remove the operation, use the no form of this command.
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the type mpls lsp ping command to configure parameters for an IP SLA LSP ping operation. After you enter the command, you enter IP SLA MPLS LSP Ping configuration mode.
An MPLS LSP ping operation tests connectivity between routers along an LSP path in an MPLS network and measures round-trip delay of the LSP by using an echo request and echo reply.
The MPLS LSP ping operation verifies LSP connectivity by using one of the supported Forwarding Equivalence Class (FEC) entities between the ping origin and egress node of each FEC. The following FEC types are supported for an MPLS LSP ping operation:
- IPv4 LDP prefixes (configured with the target ipv4 command)
- MPLS TE tunnels (configured with the target traffic-eng command)
- Pseudowire (configured with the target pseudowire command)
For MPLS LSP monitor ping operations, only IPv4 LDP prefixes are supported.
If the type mpls lsp ping command is used in IP SLA operation configuration mode, it configures the parameters for the specific operation being configured. If the type mpls lsp ping command is used in IP SLA MPLS LSP monitor configuration mode, it configures the parameters for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the type mpls lsp ping command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-ping)#The following example shows how to use the type mpls lsp ping command in IP SLA MPLS LSP monitor configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 2 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp ping RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-ping)#Related Commands
type mpls lsp trace
To trace LSP paths and localize network faults in an MPLS network, use the type mpls lsp trace command in the appropriate configuration mode. To remove the operation, use the no form of this command.
Command History
Release
Modification
Release 3.4.0
This command was introduced.
Release 3.5.0
This command was added to IP SLA MPLS LSP monitor configuration mode.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the type mpls lsp trace command to configure parameters for an IP SLA LSP trace operation. After you enter the command, you enter IP SLA MPLS LSP Trace configuration mode.
An MPLS LSP trace operation traces the hop-by-hop route of LSP paths to a target router and measures the hop-by-hop round-trip delay for IPv4 LDP prefixes and TE tunnel FECs in an MPLS network. Echo request packets are sent to the control plane of each transit label switching router (LSR). A transit LSR performs various checks to determine if it is a transit LSR for the LSP path. A trace operation allows you to troubleshoot network connectivity and localize faults hop-by-hop.
In an MPLS LSP trace operation, each transit LSR returns information related to the type of Forwarding Equivalence Class (FEC) entity that is being traced. This information allows the trace operation to check if the local forwarding information matches what the routing protocols determine as the LSP path.
An MPLS label is bound to a packet according to the type of FEC used for the LSP. The following FEC types are supported for an MPLS LSP trace operation:
- LDP IPv4 prefixes (configured with the target ipv4 command)
- MPLS TE tunnels (configured with the target traffic-eng command)
For MPLS LSP monitor trace operations, only IPv4 LDP prefixes are supported.
If the type mpls lsp trace command is used in IP SLA operation configuration mode, it configures the parameters for the specific operation being configured. If the type mpls lsp trace command is used in IP SLA MPLS LSP monitor configuration mode, it configures the parameters for all operations associated with the monitored provider edge (PE) routers. This configuration is inherited by all LSP operations that are created automatically.
Task ID
Examples
The following example shows how to use the type mpls lsp trace command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mpls-lsp-trace)#The following example shows how to use the type mpls lsp trace command in IP SLA MPLS LSP monitor configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 2 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-trace)#type udp echo
To use the UDP echo operation type, use the type udp echo command in IP SLA operation configuration mode. To remove the operation, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the type udp echo command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp echo RP/0/RP0/CPU0:router(config-ipsla-udp-echo)#type udp jitter
To use the UDP jitter operation type, use the type udp jitter command in IP SLA operation configuration mode. To remove the operation, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the type udp jitter command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)#type udp ipv4 address
To configure a permanent port in the IP SLA responder for UDP echo or jitter operations, use the type udp ipv4 address command in IP SLA responder configuration mode. To remove the specified permanent port, use the no form of this command.
Syntax Description
ip-address
Specifies the IPv4 address at which the operation is received.
port port
Specifies the port number at which the operation is received. Range is identical to the one used for the subagent that is, 1 to 65355.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to configure a permanent port for the type udp ipv4 address command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# responder RP/0/RP0/CPU0:router(config-ipsla-resp)# type udp ipv4 address 192.0.2.11 port 10001verify-data
To check each IP SLA response for corruption, use the verify-data command in the appropriate configuration mode. To disable data corruption checking, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the verify-data command in IP SLA UDP jitter configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp jitter RP/0/RP0/CPU0:router(config-ipsla-udp-jitter)# verify-datavrf (IP SLA)
To enable the monitoring of a Virtual Private Network (VPN) in an ICMP echo, ICMP path-echo, ICMP path-jitter, UDP echo, or UDP jitter operation, use the vrf command in the appropriate configuration mode. To disable VPN monitoring, use the no form of this command.
Syntax Description
Command Modes
IP SLA ICMP echo configuration
IP SLA ICMP path-echo configuration
IP SLA ICMP path-jitter configuration
IP SLA UDP echo configuration
IP SLA UDP jitter configuration
IP SLA MPLS LSP ping configuration
IP SLA MPLS LSP trace configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the vrf command to configure a non-default VPN routing and forwarding (VRF) table for an IP SLA operation. A VPN is commonly identified using the name of a VRF table. If you use the vrf command in the configuration of an IP SLA operation, the vrf-name value is used to identify the VPN for the particular operation.
The default VRF table is used if no value is specified with the vrf command. If you enter a VPN name for an unconfigured VRF, the IP SLA operation fails and the following information is displayed in the results for the show ipsla statistics command:
Latest operation return code : VrfNameErrorThe vrf command is supported only to configure the following IP SLA operations:
Task ID
Examples
The following example shows how to use the vrf command:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# operation 1 RP/0/RP0/CPU0:router(config-ipsla-op)# type udp echo RP/0/RP0/CPU0:router(config-ipsla-udp-echo)# vrf vpn2Related Commands
Command
Description
Configures an IP SLA operation.
Schedules an IP SLA operation.
Configures an IP SLA ICMP echo operation.
Configures an IP SLA ICMP path-echo operation.
Configures an IP SLA ICMP path-jitter operation.
Configures an IP SLA UDP echo operation.
Configures an IP SLA UDP jitter operation.
vrf (IP SLA MPLS LSP monitor)
To specify which virtual routing and forwarding instance (VRF) is monitored in an IP SLA MPLS LSP monitor ping or trace, use the vrf command in the the appropriate configuration mode. To revert to the monitoring of all VRFs, use the no form of this command.
Syntax Description
Command Modes
IP SLA MPLS LSP monitor ping configuration
IP SLA MPLS LSP monitor trace configuration
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The vrf command in IP SLA MPLS LSP monitor configuration mode specifies to monitor a specific VRF in ping and trace operations. The default is that all VRFs are monitored.
Task ID
Examples
The following example shows how to use the vrf command in IP SLA MPLS LSP monitor configuration mode:
RP/0/RP0/CPU0:router# configure RP/0/RP0/CPU0:router(config)# ipsla RP/0/RP0/CPU0:router(config-ipsla)# mpls lsp-monitor RP/0/RP0/CPU0:router(config-ipsla-mplslm)# monitor 2 RP/0/RP0/CPU0:router(config-ipsla-mplslm-def)# type mpls lsp trace RP/0/RP0/CPU0:router(config-ipsla-mplslm-lsp-trace)# vrf vpn-lsp
