IPSLA Y1731 On-Demand and Concurrent Operations
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1 IPSLA Y1731 On-Demand and Concurrent Operations This module describes how to configure the IPSLA Y1731 SLM Feature Enhancements feature for enabling real-time Ethernet service troubleshooting for users without configuration privileges. This feature supports on-demand Synthetic Loss Measurement (SLM) operations that can be run by issuing a single command in privileged EXEC mode. Finding Feature Information, page 1 Prerequisites for ITU-T Y.1731 Operations, page 1 Restrictions for IP SLAs Y.1731 On-Demand Operations, page 2 Information About IP SLAs Y.1731 On-Demand and Concurrent Operations, page 2 How to Configure IP SLAs Y.1731 On-Demand and Concurrent Operations, page 3 Configuration Examples for IP SLAs Y.1731 On-Demand and Concurrent Operations, page 5 Additional References for IP SLAs Y.1731 On-Demand and Concurrent Operations, page 7 Feature Information for IP SLAs Y.1731 On-Demand and Concurrent Operations, page 9 Finding Feature Information Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and 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 table. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to An account on Cisco.com is not required. Prerequisites for ITU-T Y.1731 Operations IEEE-compliant Connectivity Fault Management (CFM) must be configured and enabled for Y.1731 performance monitoring to function. 1
2 Restrictions for IP SLAs Y.1731 On-Demand Operations IPSLA Y1731 On-Demand and Concurrent Operations Restrictions for IP SLAs Y.1731 On-Demand Operations SNMP is not supported for reporting threshold events or collecting performance statistics for on-demand operations. On-demand operation statistics are not stored and are not supported by the statistic history and aggregation functions. Information About IP SLAs Y.1731 On-Demand and Concurrent Operations IPSLA Y1731 SLM Feature Enhancements On-demand IP SLAs Synthetic Loss Measurement (SLM) operations, in the IPSLA Y1731 SLM Feature Enhancements feature, enable users without configuration access to perform real-time troubleshooting of Ethernet services. There are two operational modes for on-demand operations: direct mode that creates and runs an operation immediately and referenced mode that starts and runs a previously configured operation. In the direct mode, a single command can be used to create multiple pseudo operations for a range of class of service (CoS) values to be run, in the background, immediately. A single command in privileged EXEC mode can be used to specify frame size, interval, frequency, and duration for the direct on-demand operation. Direct on-demand operations start and run immediately after the command is issued. In the referenced mode, you can start one or more already-configured operations for different destinations, or for the same destination, with different CoS values. Issuing the privileged EXEC command creates a pseudo version of a proactive operation that starts and runs in the background, even while the proactive operation is running. Once an on-demand operation is completed, statistical output is displayed on the console. On-demand operation statistics are not stored and are not supported by the statistic history and aggregation functions. After an on-demand operation is completed, and the statistics handled, the direct and referenced on-demand operation is deleted. The proactive operations are not deleted and continue to be available to be run in referenced mode, again. A concurrent operation consists of a group of operations, all configured with the same operation ID number, that run concurrently. Concurrent operations are supported for a given Ethernet Virtual Circuit (EVC), CoS, and remote Maintenance End Point (MEP) combination, or for multiple MEPs for a given multipoint EVC, for delay or loss measurements. A new keyword was added to the appropriate commands to specify that concurrent Ethernet frame Delay Measurement (ETH-DM) synthetic frames are sent during the operation. The IPSLA Y.1731 SLM Feature Enhancements feature also supports burst mode for concurrent operations, one-way dual-ended, and single-ended delay and delay variation operations, as well as for single-ended loss operations. A new keyword was added to the appropriate commands to support bursts of PDU transmission during an aggregation interval. The maximum number of services monitored is 50 every 30 minutes, with an average of 25 services every 2 hours. 2
3 IPSLA Y1731 On-Demand and Concurrent Operations How to Configure IP SLAs Y.1731 On-Demand and Concurrent Operations How to Configure IP SLAs Y.1731 On-Demand and Concurrent Operations Configuring a Direct On-Demand Operation on a Sender MEP Before You Begin Class of Service (CoS)-level monitoring must be enabled on MEPs associated to the Ethernet frame loss operation by using the monitor loss counter command on the devices at both ends of the operation. See the Cisco IOS Carrier Ethernet Command Reference for command information. See the Configuration Examples for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations section for configuration information. Note The Cisco IOS Y.1731 implementation allows monitoring of frame loss on an EVC regardless of the CoS value (any CoS or aggregate CoS cases). See the Configuration Examples for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations section for configuration information. SUMMARY STEPS 1. enable 2. ip sla on-demand ethernet {DMMv1 SLM} domain domain-name {evc evc-id vlan vlan-id} {mpid target-mp-id mac-address target-address} cos cos {source {mpid source-mp-id mac-address source-address}} {continuous [interval milliseconds] burst [interval milliseconds] [number number-of-frames] [frequency seconds]} [size bytes] aggregation seconds {duration seconds max number-of-packets} DETAILED STEPS Step 1 Command or Action enable Example: Device> enable Purpose Enables privileged EXEC mode. Enter your password if prompted. Step 2 ip sla on-demand ethernet {DMMv1 SLM} domain Creates and runs an on-demand operation in direct mode. domain-name {evc evc-id vlan vlan-id} {mpid target-mp-id To create and run concurrent on-demand operations, mac-address target-address} cos cos {source {mpid configure this command using the DMMv1 source-mp-id mac-address source-address}} {continuous keyword. [interval milliseconds] burst [interval milliseconds] [number number-of-frames] [frequency seconds]} [size bytes] Statistical output is posted on the console after the operation is finished. aggregation seconds {duration seconds max number-of-packets} Repeat this step for each on-demand operation to be run. 3
4 Configuring a Referenced On-Demand Operation on a Sender MEP IPSLA Y1731 On-Demand and Concurrent Operations Command or Action Example: Device# ip sla on-demand ethernet SLM domain xxx vlan 12 mpid 34 cos 4 source mpid 23 continuous aggregation 10 duration 60 Purpose After an on-demand operation is finished and the statistics handled, the operation is deleted. Configuring a Referenced On-Demand Operation on a Sender MEP Note After an on-demand operation is finished and the statistics handled, the on-demand version of the operation is deleted. Before You Begin Single-ended and concurrent Ethernet delay, or delay variation, and frame loss operations to be referenced must be configured. See the Configuring IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations module of the IP SLAs Configuration Guide. SUMMARY STEPS 1. enable 2. ip sla on-demand ethernet [dmmv1 slm] operation-number {duration seconds max number-of-packets DETAILED STEPS Step 1 Command or Action enable Example: Device> enable Purpose Enables privileged EXEC mode. Enter your password if prompted. Step 2 ip sla on-demand ethernet [dmmv1 slm] operation-number {duration seconds max number-of-packets Example: Device# ip sla on-demand ethernet slm 11 duration 38 Creates and runs a pseudo operation of the operation being referenced, in the background. Statistical output is posted on the console after the operation is finished. Repeat this step for each on-demand operation to be run. 4
5 IPSLA Y1731 On-Demand and Concurrent Operations Configuring an IP SLAs Y.1731 Concurrent Operation on a Sender MEP Configuring an IP SLAs Y.1731 Concurrent Operation on a Sender MEP To configure concurrent Ethernet delay, delay variation, and frame loss operations, see the Configuring IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations module of the IP SLAs Configuration Guide. Configuration Examples for IP SLAs Y.1731 On-Demand and Concurrent Operations Example: On-Demand Operation in Direct Mode Device# ip sla on-demand ethernet SLM domain xxx vlan 10 mpid 3 cos 1 source mpid 1 continuous aggregation 35 duration 38 Loss Statistics for Y1731 Operation Type of operation: Y1731 Loss Measurement Latest operation start time: *20:17: PST Wed May Latest operation return code: OK Distribution Statistics: Interval 1 Start time: *20:17: PST Wed May End time: *20:18: PST Wed May Number of measurements initiated: 35 Number of measurements completed: 35 Flag: OK Forward Timestamps forward: Backward Timestamps backward: Loss Statistics for Y1731 Operation Type of operation: Y1731 Loss Measurement Latest operation start time: *20:17: PST Wed May Latest operation return code: OK Distribution Statistics: Interval 1 Start time: *20:17: PST Wed May End time: *20:18: PST Wed May Number of measurements initiated: 35 5
6 Example: On-Demand Operation in Referenced Mode IPSLA Y1731 On-Demand and Concurrent Operations Number of measurements completed: 35 Flag: OK Forward Timestamps forward: Backward Timestamps backward: Example: On-Demand Operation in Referenced Mode Device(config)# ip sla 11 Device(config-ip-sla)# ethernet y1731 loss SLM domain xxx vlan 10 mpid 3 cos 1 source mpid 1 Device(config-sla-y1731-loss)# end Device# ip sla on-demand ethernet slm 11 duration 38 Loss Statistics for Y1731 Operation Type of operation: Y1731 Loss Measurement Latest operation start time: *20:17: PST Wed May Latest operation return code: OK Distribution Statistics: Interval 1 Start time: *20:17: PST Wed May End time: *20:18: PST Wed May Number of measurements initiated: 35 Number of measurements completed: 35 Flag: OK Forward Timestamps forward: Backward Timestamps backward: 6
7 IPSLA Y1731 On-Demand and Concurrent Operations Additional References for IP SLAs Y.1731 On-Demand and Concurrent Operations Loss Statistics for Y1731 Operation Type of operation: Y1731 Loss Measurement Latest operation start time: *20:17: PST Wed May Latest operation return code: OK Distribution Statistics: Interval 1 Start time: *20:17: PST Wed May End time: *20:18: PST Wed May Number of measurements initiated: 35 Number of measurements completed: 35 Flag: OK Forward Timestamps forward: Backward Timestamps backward: Additional References for IP SLAs Y.1731 On-Demand and Concurrent Operations Related Documents Related Topic Cisco IOS commands Cisco IOS Carrier Ethernet commands Cisco IOS IP SLAs commands Document Title Cisco IOS Master Commands List, All Releases Cisco IOS Carrier Ethernet Command Reference Cisco IOS IP SLAs Command Reference 7
8 Additional References for IP SLAs Y.1731 On-Demand and Concurrent Operations IPSLA Y1731 On-Demand and Concurrent Operations Related Topic Ethernet CFM for ITU-T Y.1731 Ethernet operations Network Time Protocol (NTP) Document Title ITU-T Y.1731 Performance Monitoring in a Service Provider Network module of the Carrier Ethernet Configuration Guide Configuring IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations module of the IP SLAs Configuration Guide Configuring NTP module of the Network Management Configuration Guide Standards and RFCs Standard/RFC ITU-T Y.1731 Title OAM functions and mechanisms for Ethernet-based networks MIBs MIB CISCO-IPSLA-ETHERNET-MIB CISCO-RTTMON-MIB MIBs Link To locate and download MIBs for selected platforms, Cisco software releases, and feature sets, use Cisco MIB Locator found at the following URL: Technical Assistance Description The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. Link 8
9 IPSLA Y1731 On-Demand and Concurrent Operations Feature Information for IP SLAs Y.1731 On-Demand and Concurrent Operations Feature Information for IP SLAs Y.1731 On-Demand and Concurrent Operations The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to An account on Cisco.com is not required. Table 1: Feature Information for IP SLAs Y.1731 On-Demand and Concurrent Operations Feature Name IPSLA Y1731 SLM Feature Enhancements Releases Feature Information This feature enhancement allows you to run on-demand Synthetic Loss Measurement (SLM) operations, independent from previously scheduled operations, for the purpose of troubleshooting Etherent services in your network. The following commands were introduced or modified: ethernet y1731 delay, ethernet y1737 loss, ip sla on-demand ethernet. 9
10 Feature Information for IP SLAs Y.1731 On-Demand and Concurrent Operations IPSLA Y1731 On-Demand and Concurrent Operations 10
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