Table Of 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
IP SLAs Ethernet Operation Basics
How to Configure the IP SLAs Ethernet Operation
Configuring an IP SLAs Ethernet Operation with Endpoint Discovery
Manually Configuring an Individual IP SLAs Ethernet Operation
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
Feature Information for the IP SLAs Ethernet Operation
IP SLAs for Metro-Ethernet
First Published: February 27, 2007Last Updated: November 11, 2008The IP Service Level Agreements (SLAs) for Metro-Ethernet feature provides the capability to gather Ethernet-layer network performance metrics. 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
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Prerequisites for the IP SLAs Ethernet Operation
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Restrictions for the IP SLAs Ethernet Operation
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Information About the IP SLAs Ethernet Operation
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How to Configure the IP SLAs Ethernet Operation
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Configuration Examples for the IP SLAs Ethernet Operation
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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:
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Benefits of the IP SLAs Ethernet Operation
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IP SLAs Ethernet Operation Basics
Benefits of the IP SLAs Ethernet Operation
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End-to-end connectivity measurements for determining network availability or testing network connectivity in service provider Ethernet networks
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Proactive threshold violation monitoring through SNMP trap notifications and syslog messages
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Reduced network troubleshooting time for service provider Ethernet networks
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Creation of IP SLAs Ethernet ping and Ethernet jitter operations based on network topology
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Discovery of existing maintenance endpoints (MEPs) in a given Ethernet CFM maintenance domain and EVC or VLAN based on the Ethernet CFM database
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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
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 Ethernet-layer 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. You also have the option to configure an IP SLAs auto Ethernet 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:
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Jitter (source-to-destination and destination-to-source)
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Round-trip time latency
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Unprocessed packets
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Packet loss (source-to-destination and destination-to-source)
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Out-of-sequence, tail-dropped, and late packets
How to Configure the IP SLAs Ethernet Operation
This section contains the following tasks:
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Configuring an IP SLAs Ethernet Operation with Endpoint Discovery
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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
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 | vlan vlan-id}
or
ethernet jitter mpid mp-id domain domain-name {evc evc-id | 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]
DETAILED STEPS
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:
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Configuring an IP SLAs Ethernet Operation with Endpoint Discovery: Examples
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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 10type 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 nowConfiguration B
ip sla ethernet-monitor 20type 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 nowManually 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
ip sla 1ethernet 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 nowConfiguration D
ip sla 5ethernet 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 nowWhere 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
Related Topic Document TitleEthernet CFM
"Configuring Ethernet Connectivity Fault Management in a Service Provider Network" chapter of the Cisco IOS Carrier Ethernet Configuration Guide
Multioperation scheduling for Cisco IOS IP SLAs
"IP SLAs—Multiple Operation Scheduling" chapter of the Cisco IOS IP SLAs Configuration Guide
Proactive threshold monitoring for Cisco IOS IP SLAs
"IP SLAs—Proactive Threshold Monitoring" chapter of the Cisco IOS IP SLAs Configuration Guide
Cisco IOS IP SLAs command-line interface enhancements
Cisco IOS IP Service Level Agreements Command Line Interface, Cisco white paper
Cisco IOS IP SLAs commands
Standards
MIBs
MIB MIBs Link•
CISCO-RTTMON-MIB
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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:
RFCs
RFC TitleNo new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature.
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Technical Assistance
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.
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cos
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debug ip sla ethernet-monitor
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ethernet echo mpid
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ethernet jitter mpid
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ip sla ethernet-monitor
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ip sla ethernet-monitor reaction-configuration
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ip sla ethernet-monitor schedule
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request-data-size (Ethernet)
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show ip sla ethernet-monitor configuration
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type echo domain
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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.
Table 1 Feature Information for the IP SLAs Ethernet Operation
Feature Name Releases Feature InformationIP SLAs for Metro-Ethernet
12.2(33)SRB, 12.2(33)SB, 12.4(20)T, Cisco IOS XE Release 2.1, 12.2(33)SXI
The IP Service Level Agreements (SLAs) for Metro-Ethernet feature provides the capability to gather Ethernet-layer network performance metrics. Available statistical measurements for the IP SLAs Ethernet operation include round-trip time, jitter (interpacket delay variance), and packet loss.
IP SLAs Metro-Ethernet 2.0 (EVC)
12.2(33)SRD
Support for Ethernet Virtual Circuits (EVCs) was added.
The following sections provide information about this feature:
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IP SLAs Ethernet Operation Basics
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Configuring an IP SLAs Ethernet Operation with Endpoint Discovery
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Manually Configuring an Individual IP SLAs Ethernet Operation
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Configuring an IP SLAs Ethernet Operation with Endpoint Discovery: Examples
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Manually Configuring an Individual IP SLAs Ethernet Operation: Examples
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