Table Of Contents
IP SLAs for Metro-Ethernet
Finding Feature Information
Contents
Prerequisites for the IP SLAs Ethernet Operation
Restrictions for the IP SLAs Ethernet Operation
Information About the IP SLAs Ethernet Operation
Benefits of the IP SLAs Ethernet Operation
Ethernet CFM
IP SLAs Ethernet Operation Basics
How to Configure the IP SLAs Ethernet Operation
Configuring an IP SLAs Ethernet Operation with Endpoint Discovery
Troubleshooting Tips
What to Do Next
Manually Configuring an Individual IP SLAs Ethernet Operation
Troubleshooting Tips
What to Do Next
Configuration Examples for the IP SLAs Ethernet Operation
Configuring an IP SLAs Ethernet Operation with Endpoint Discovery: Examples
Manually Configuring an Individual IP SLAs Ethernet Operation: Examples
Where to Go Next
Additional References
Related Documents
Standards
MIBs
RFCs
Technical Assistance
Command Reference
Feature Information for the IP SLAs Ethernet Operation
IP SLAs for Metro-Ethernet
First Published: February 27, 2007
Last Updated: November 20, 2009
The IP Service Level Agreements (SLAs) for Metro-Ethernet feature provides the capability to gather network performance metrics in service provider Ethernet networks. This feature integrates Cisco IOS IP SLAs with the Ethernet Connectivity Fault Management (CFM) feature. Ethernet CFM is an end-to-end per-service-instance Ethernet-layer operation, administration, and management (OAM) protocol. Available statistical measurements for the IP SLAs Ethernet operation include round-trip time, jitter (interpacket delay variance), and packet loss.
The IP SLAs for Metro-Ethernet feature also allows you to perform multioperation scheduling of IP SLAs operations and supports proactive threshold violation monitoring through Simple Network Management Protocol (SNMP) trap notifications and syslog messages.
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the "Feature Information for the IP SLAs Ethernet Operation" section.
Use Cisco Feature Navigator to find information about platform support and Cisco IOS, Catalyst OS, and Cisco IOS XE software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Contents
•
Prerequisites for the IP SLAs Ethernet Operation
•
Restrictions for the IP SLAs Ethernet Operation
•
Information About the IP SLAs Ethernet Operation
•
How to Configure the IP SLAs Ethernet Operation
•
Configuration Examples for the IP SLAs Ethernet Operation
•
Where to Go Next
•
Additional References
•
Command Reference
•
Feature Information for the IP SLAs Ethernet Operation
Prerequisites for the IP SLAs Ethernet Operation
It is recommended that the IEEE 802.1ag standard is supported on the destination devices in order to obtain complete error reporting and diagnostics information.
Note
The destination devices do not require the IP SLAs Responder to be enabled.
Restrictions for the IP SLAs Ethernet Operation
Memory and performance may be impacted for a given Ethernet CFM maintenance domain and Ethernet Virtual Circuit (EVC) or VLAN that has a large number of maintenance endpoints (MEPs).
Information About the IP SLAs Ethernet Operation
To configure an IP SLAs Ethernet operation, you should understand the following concepts:
•
Benefits of the IP SLAs Ethernet Operation
•
Ethernet CFM
•
IP SLAs Ethernet Operation Basics
Benefits of the IP SLAs Ethernet Operation
•
End-to-end connectivity measurements for determining network availability or testing network connectivity in service provider Ethernet networks
•
Proactive threshold violation monitoring through SNMP trap notifications and syslog messages
•
Reduced network troubleshooting time for service provider Ethernet networks
•
Creation of IP SLAs Ethernet ping and Ethernet jitter operations based on network topology
•
Discovery of existing maintenance endpoints (MEPs) in a given Ethernet CFM maintenance domain and EVC or VLAN based on the Ethernet CFM database
•
Multioperation scheduling of IP SLAs operations
Ethernet CFM
Ethernet CFM is an end-to-end per-service-instance Ethernet-layer operation, administration, and management (OAM) protocol. For more information about this feature, see the documentation for the Ethernet CFM feature. (See the "Related Documents" section for the location of this document.)
IP SLAs Ethernet Operation Basics
Note
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the "Feature Information for the IP SLAs Ethernet Operation" section.
The IP SLAs for Metro-Ethernet feature integrates the IP SLAs software subsystem with the Ethernet CFM software subsystem to provide the capability to gather statistical measurements by sending and receiving Ethernet data frames between Ethernet CFM maintenance endpoints (MEPs). The performance metrics for IP SLAs Ethernet operations are measured between a source MEP and a destination MEP. Unlike existing IP SLAs operations that provide performance metrics for the IP layer, the IP SLAs Ethernet operation provides performance metrics for Layer 2.
IP SLAs Ethernet operations may be configured using the command-line interface (CLI) or Simple Network Management Protocol (SNMP). You can manually configure individual Ethernet ping or Ethernet jitter operations by specifying the destination MEP identification number, name of the maintenance domain, and EVC or VLAN identifier or port level option.
You also have the option to configure an IP SLAs auto Ethernet ping or auto Ethernet jitter operation that will query the Ethernet CFM database for all maintenance endpoints in a given maintenance domain and EVC or VLAN. When an IP SLAs auto Ethernet operation is configured, individual Ethernet ping or Ethernet jitter operations are automatically created based on the MEPs that were discovered. A notification mechanism exists between the IP SLAs and Ethernet CFM subsystems to facilitate the automatic creation of Ethernet ping or Ethernet jitter operations for applicable MEPs that are added to a given maintenance domain and EVC or VLAN while an auto Ethernet operation is running.
The IP SLAs for Metro-Ethernet feature also allows you to perform multioperation scheduling of IP SLAs operations and supports proactive threshold violation monitoring through SNMP trap notifications and syslog messages. For more information on these topics, see the "Related Documents" section.
Statistics Measured by the IP SLAs Ethernet Operation
The network performance metrics supported by the IP SLAs Ethernet operation is similar to the metrics supported by existing IP SLAs operations. The statistical measurements supported by the IP SLAs Ethernet jitter operation include the following:
•
Jitter (source-to-destination and destination-to-source)
•
Round-trip time latency
•
Unprocessed packets
•
Packet loss (source-to-destination and destination-to-source)
•
Out-of-sequence, tail-dropped, and late packets
How to Configure the IP SLAs Ethernet Operation
This section contains the following tasks:
•
Configuring an IP SLAs Ethernet Operation with Endpoint Discovery
•
Manually Configuring an Individual IP SLAs Ethernet Operation
Configuring an IP SLAs Ethernet Operation with Endpoint Discovery
Perform this task to configure and schedule an IP SLAs auto Ethernet operation.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ip sla ethernet-monitor operation-number
4.
type echo domain domain-name {evc evc-id | vlan vlan-id} [exclude-mpids mp-ids]
or
type jitter domain domain-name {evc evc-id | vlan vlan-id} [exclude-mpids mp-ids] [interval interframe-interval] [num-frames frames-number]
5.
cos cos-value
6.
owner owner-id
7.
request-data-size bytes
8.
tag text
9.
threshold milliseconds
10.
timeout milliseconds
11.
exit
12.
ip sla ethernet-monitor reaction-configuration operation-number react monitored-element [action-type {none | trapOnly}] [threshold-type {average [number-of-measurements] | consecutive [occurrences] | immediate | never | xofy [x-value y-value]}] [threshold-value upper-threshold lower-threshold]
13.
ip sla ethernet-monitor schedule operation-number schedule-period seconds [frequency [seconds]] [start-time {after hh:mm:ss | hh:mm[:ss] [month day | day month] | now | pending}]
14.
exit
15.
show ip sla ethernet-monitor configuration [operation-number]
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
enable
Example:
Router> enable
|
Enables privileged EXEC mode.
• Enter your password if prompted.
|
Step 2
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode.
|
Step 3
|
ip sla ethernet-monitor operation-number
Example:
Router(config)# ip sla ethernet-monitor 1
|
Begins configuration for an IP SLAs auto Ethernet operation and enters IP SLA Ethernet monitor configuration mode.
|
Step 4
|
type echo domain domain-name {evc evc-id | vlan
vlan-id} [exclude-mpids mp-ids]
or
type jitter domain domain-name {evc evc-id |
vlan vlan-id} [exclude-mpids mp-ids] [interval
interframe-interval] [num-frames frames-number]
Example:
Router(config-ip-sla-ethernet-monitor)# type
echo domain testdomain vlan 34
or
Example:
Router(config-ip-sla-ethernet-monitor)# type
jitter domain testdomain evc testevc interval
20 num-frames 30
|
Configures an auto Ethernet operation to create Ethernet ping operations.
or
Configures an auto Ethernet operation to create Ethernet jitter operations.
|
Step 5
|
cos cos-value
Example:
Router(config-ip-sla-ethernet-params)# cos 2
|
(Optional) Sets the class of service for an IP SLAs Ethernet operation.
|
Step 6
|
owner owner-id
Example:
Router(config-ip-sla-ethernet-params)# owner
admin
|
(Optional) Configures the Simple Network Management Protocol (SNMP) owner of an IP SLAs operation.
|
Step 7
|
request-data-size bytes
Example:
Router(config-ip-sla-ethernet-params)#
request-data-size 64
|
(Optional) Sets the padding size for the data frame of an IP SLAs Ethernet operation.
The default value for IP SLAs Ethernet ping operations is 66 bytes. The default value for IP SLAs Ethernet jitter operations is 51 bytes.
|
Step 8
|
tag text
Example:
Router(config-ip-sla-ethernet-params)# tag
TelnetPollSever1
|
(Optional) Creates a user-specified identifier for an IP SLAs operation.
|
Step 9
|
threshold milliseconds
Example:
Router(config-ip-sla-ethernet-params)#
threshold 10000
|
(Optional) Sets the upper threshold value for calculating network monitoring statistics created by an IP SLAs operation.
|
Step 10
|
timeout milliseconds
Example:
Router(config-ip-sla-ethernet-params)# timeout
10000
|
(Optional) Sets the amount of time an IP SLAs operation waits for a response from its request packet.
|
Step 11
|
exit
Example:
Router(config-ip-sla-ethernet-params)# exit
|
Exits IP SLAs auto Ethernet parameters configuration submode and returns to global configuration mode.
|
Step 12
|
ip sla ethernet-monitor reaction-configuration
operation-number react monitored-element
[action-type {none | trapOnly}] [threshold-type
{average [number-of-measurements] | consecutive
[occurrences] | immediate | never | xofy
[x-value y-value]}] [threshold-value
upper-threshold lower-threshold]
Example:
Router(config)# ip sla ethernet-monitor
reaction-configuration 10 react connectionLoss
threshold-type consecutive 3 action-type
trapOnly
|
Configures proactive threshold monitoring parameters for an IP SLAs auto Ethernet operation.
|
Step 13
|
ip sla ethernet-monitor schedule
operation-number schedule-period seconds
[frequency [seconds]] [start-time {after
hh:mm:ss | hh:mm[:ss] [month day | day month] |
now | pending}]
Example:
Router(config)# ip sla ethernet-monitor
schedule 10 schedule-period 60 start-time now
|
Configures scheduling parameters for an IP SLAs auto Ethernet operation.
|
Step 14
|
exit
Example:
Router(config)# exit
|
(Optional) Exits global configuration mode and returns to privileged EXEC mode.
|
Step 15
|
show ip sla ethernet-monitor configuration
[operation-number]
Example:
Router# show ip sla ethernet-monitor
configuration 1
|
(Optional) Displays configuration settings for all IP SLAs auto Ethernet operations or a specified auto Ethernet operation.
|
Troubleshooting Tips
Use the debug ip sla trace and debug ip sla error commands to help troubleshoot issues with an individual IP SLAs Ethernet ping or Ethernet jitter operation. Use the debug ip sla ethernet-monitor command to help troubleshoot issues with an IP SLAs auto Ethernet operation.
What to Do Next
To display the results of an IP SLAs operation, use the show ip sla statistics and show ip sla statistics aggregated commands. Checking the output for fields that correspond to criteria in your service level agreement will help you determine whether the service metrics are acceptable.
Manually Configuring an Individual IP SLAs Ethernet Operation
Perform this task to manually configure and schedule an individual IP SLAs Ethernet ping or Ethernet jitter operation.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ip sla operation-number
4.
ethernet echo mpid mp-id domain domain-name {evc evc-id | port | vlan vlan-id}
or
ethernet jitter mpid mp-id domain domain-name {evc evc-id | port | vlan vlan-id} [interval interframe-interval] [num-frames frames-number]
5.
cos cos-value
6.
frequency seconds
7.
history history-parameter
8.
owner owner-id
9.
request-data-size bytes
10.
tag text
11.
threshold milliseconds
12.
timeout milliseconds
13.
exit
14.
ip sla reaction-configuration operation-number react monitored-element [action-type option] [threshold-type {average [number-of-measurements] | consecutive [occurrences] | immediate | never | xofy [x-value y-value]}] [threshold-value upper-threshold lower-threshold]
15.
ip sla schedule operation-number [life {forever | seconds}] [start-time {hh:mm[:ss] [month day | day month] | pending | now | after hh:mm:ss}] [ageout seconds] [recurring]
16.
exit
17.
show ip sla configuration [operation-number]
18.
show ip sla application
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
enable
Example:
Router> enable
|
Enables privileged EXEC mode.
• Enter your password if prompted.
|
Step 2
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode.
|
Step 3
|
ip sla operation-number
Example:
Router(config)# ip sla 1
|
Begins configuration for an IP SLAs operation and enters IP SLA configuration mode.
|
Step 4
|
ethernet echo mpid mp-id domain domain-name
{evc evc-id | port | vlan vlan-id}
or
ethernet jitter mpid mp-id domain domain-name
{evc evc-id | port | vlan vlan-id} [interval
interframe-interval] [num-frames frames-number]
Example:
Router(config-ip-sla)# ethernet echo mpid 23
domain testdomain vlan 34
or
Example:
Router(config-ip-sla)# ethernet jitter mpid 23
domain testdomain evc testevc interval 20
num-frames 30
|
Configures the IP SLAs operation as an Ethernet ping operation and enters Ethernet echo configuration mode.
or
Configures the IP SLAs operation as an Ethernet jitter operation and enters Ethernet jitter configuration mode.
|
Step 5
|
cos cos-value
Example:
Router(config-ip-sla-ethernet-echo)# cos 2
|
(Optional) Sets the class of service for an IP SLAs Ethernet operation.
|
Step 6
|
frequency seconds
Example:
Router(config-ip-sla-ethernet-echo)# frequency
30
|
(Optional) Sets the rate at which a specified IP SLAs operation repeats.
|
Step 7
|
history history-parameter
Example:
Router(config-ip-sla-ethernet-echo)# history
hours-of-statistics-kept 3
|
(Optional) Specifies the parameters used for gathering statistical history information for an IP SLAs operation.
|
Step 8
|
owner owner-id
Example:
Router(config-ip-sla-ethernet-echo)# owner
admin
|
(Optional) Configures the Simple Network Management Protocol (SNMP) owner of an IP SLAs operation.
|
Step 9
|
request-data-size bytes
Example:
Router(config-ip-sla-ethernet-echo)#
request-data-size 64
|
(Optional) Sets the padding size for the data frame of an IP SLAs Ethernet operation.
The default value for IP SLAs Ethernet ping operations is 66 bytes. The default value for IP SLAs Ethernet jitter operations is 51 bytes.
|
Step 10
|
tag text
Example:
Router(config-ip-sla-ethernet-echo)# tag
TelnetPollSever1
|
(Optional) Creates a user-specified identifier for an IP SLAs operation.
|
Step 11
|
threshold milliseconds
Example:
Router(config-ip-sla-ethernet-echo)# threshold
10000
|
(Optional) Sets the upper threshold value for calculating network monitoring statistics created by an IP SLAs operation.
|
Step 12
|
timeout milliseconds
Example:
Router(config-ip-sla-ethernet-echo)# timeout
10000
|
(Optional) Sets the amount of time an IP SLAs operation waits for a response from its request packet.
|
Step 13
|
exit
Example:
Router(config-ip-sla-ethernet-echo)# exit
|
Exits IP SLAs Ethernet monitor configuration submode and returns to global configuration mode.
|
Step 14
|
ip sla reaction-configuration operation-number
react monitored-element [action-type option]
[threshold-type {average
[number-of-measurements] | consecutive
[occurrences] | immediate | never | xofy
[x-value y-value]}] [threshold-value
upper-threshold lower-threshold]
Example:
Router(config)# ip sla reaction-configuration 1
react jitterAvg threshold-value 5 2 action-type
trap threshold-type immediate
|
Configures proactive threshold monitoring parameters for an IP SLAs operation.
|
Step 15
|
ip sla schedule operation-number [life {forever
| seconds}] [start-time {hh:mm[:ss] [month day
| day month] | pending | now | after hh:mm:ss}]
[ageout seconds] [recurring]
Example:
Router(config)# ip sla schedule 1 start-time
now life forever
|
Configures the scheduling parameters for an individual IP SLAs operation.
|
Step 16
|
exit
Example:
Router(config)# exit
|
(Optional) Exits global configuration mode and returns to privileged EXEC mode.
|
Step 17
|
show ip sla configuration [operation-number]
Example:
Router# show ip sla configuration 1
|
(Optional) Displays configuration values including all defaults for all IP SLAs operations or a specified operation.
|
Step 18
|
show ip sla application
Example:
Router# show ip sla application
|
(Optional) Displays global information about supported IP SLAs features.
|
Troubleshooting Tips
Use the debug ip sla trace and debug ip sla error commands to help troubleshoot issues with an individual IP SLAs Ethernet ping or Ethernet jitter operation.
What to Do Next
To display the results of an IP SLAs operation use the show ip sla statistics and show ip sla statistics aggregated commands. Checking the output for fields that correspond to criteria in your service level agreement will help you determine whether the service metrics are acceptable.
Configuration Examples for the IP SLAs Ethernet Operation
This section provides the following configuration examples:
•
Configuring an IP SLAs Ethernet Operation with Endpoint Discovery: Examples
•
Manually Configuring an Individual IP SLAs Ethernet Operation: Examples
Configuring an IP SLAs Ethernet Operation with Endpoint Discovery: Examples
The following examples show how to configure operation parameters, proactive threshold monitoring, and scheduling options using an IP SLAs auto Ethernet operation. In Configuration A, operation 10 is configured to automatically create IP SLAs Ethernet ping operations for all the discovered maintenance endpoints in the domain named testdomain and VLAN identification number 34. In Configuration B, operation 20 is configured to automatically create IP SLAs Ethernet ping operations for all the discovered maintenance endpoints in the domain named testdomain and EVC identified as testevc. In both configurations, the proactive threshold monitoring configuration specifies that when three consecutive connection loss events occur, an SNMP trap notification should be sent. The schedule period for operation 10 and operation 20 is 60 seconds, and both operations are scheduled to start immediately.
Configuration A
ip sla ethernet-monitor 10
type echo domain testdomain vlan 34
ip sla ethernet-monitor reaction-configuration 10 react connectionLoss threshold-type
consecutive 3 action-type trapOnly
ip sla ethernet-monitor schedule 10 schedule-period 60 start-time now
Configuration B
ip sla ethernet-monitor 20
type echo domain testdomain evc testevc
ip sla ethernet-monitor reaction-configuration 20 react connectionLoss threshold-type
consecutive 3 action-type trapOnly
ip sla ethernet-monitor schedule 20 schedule-period 60 start-time now
Manually Configuring an Individual IP SLAs Ethernet Operation: Examples
The following examples show how to configure an IP SLAs Ethernet ping operation. In Configuration C, the maintenance endpoint identification number is 23, the maintenance domain name is testdomain, and the VLAN identification number is 34. In Configuration D, the maintenance endpoint identification number is 23, the maintenance domain name is testdomain, and the EVC is identified as testevc. In both configurations, the proactive threshold monitoring configuration specifies that when three consecutive connection loss events occur, an SNMP trap notification should be sent. Operation 1 and operation 5 are scheduled to start immediately.
Configuration C
ethernet echo mpid 23 domain testdomain vlan 34
ip sla reaction-configuration 1 react connectionLoss threshold-type consecutive 3
action-type trapOnly
ip sla schedule 1 start-time now
Configuration D
ethernet echo mpid 23 domain testdomain evc testevc
ip sla reaction-configuration 5 react connectionLoss threshold-type consecutive 3
action-type trapOnly
ip sla schedule 5 start-time now
Where to Go Next
For information about other types of IP SLAs operations and IP SLAs features, see the Cisco IOS IP SLAs Features Roadmap.
Additional References
The following sections provide references related to the IP SLAs for Metro-Ethernet feature.
Related Documents
Standards
Standard
|
Title
|
IEEE 802.1ag
|
Connectivity Fault Management
|
MIBs
MIB
|
MIBs Link
|
• CISCO-RTTMON-MIB
• CISCO-IPSLA-ETHERNET-MIB
|
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:
http://www.cisco.com/go/mibs
|
RFCs
RFC
|
Title
|
No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature.
|
—
|
Technical Assistance
Description
|
Link
|
The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies.
To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds.
Access to most tools on the Cisco Support website requires a Cisco.com user ID and password.
|
http://www.cisco.com/techsupport
|
Command Reference
The following commands are introduced or modified in the feature or features documented in this module. For information about these commands, see the Cisco IOS IP SLA Command Reference at http://www.cisco.com/en/US/docs/ios/ipsla/command/reference/sla_book.html. For information about all Cisco IOS commands, go to the Command Lookup Tool at http://tools.cisco.com/Support/CLILookup or to the Cisco IOS Master Commands List at http://www.cisco.com/en/US/docs/ios/mcl/allreleasemcl/all_book.html.
•
cos
•
debug ip sla ethernet-monitor
•
ethernet echo mpid
•
ethernet jitter mpid
•
ip sla ethernet-monitor
•
ip sla ethernet-monitor reaction-configuration
•
ip sla ethernet-monitor schedule
•
request-data-size (Ethernet)
•
show ip sla ethernet-monitor configuration
•
type echo domain
•
type jitter domain
Feature Information for the IP SLAs Ethernet Operation
Table 1 lists the release history for this feature.
Not all commands may be available in your Cisco IOS software release. For release information about a specific command, see the command reference documentation.
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS, Catalyst OS, and Cisco IOS XE software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Note
Table 1 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.
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