Cisco 2901 - Troubleshooting Two-Way Delay Measurement Configuration

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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Ethernet CFM and Y.1731 Performance Monitoring on Layer 3 Interfaces
Support for Y.1731 Performance Monitoring on a Routed Port (L3 Subinterface)
TX Time BWD RX Time BWD Frame Delay
Sec:nSec Sec:nSec Sec:nSec
----------------------------------------------------------------------------
Session ID: 0
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3591340722:930326034 3591340663:866791722
3591340663:866898528 3591340722:930707484 0:274644
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3591340723:927640626 3591340664:864091056
3591340664:864182604 3591340723:927976302 0:244128
****************************************************************************
3591340724:927640626 3591340665:864091056
3591340665:864167346 3591340724:927961044 0:244128
****************************************************************************
3591340725:927671142 3591340666:864121572
3591340666:864213120 3591340725:928006818 0:244128
****************************************************************************
3591340726:927655884 3591340667:864106314
3591340667:864197862 3591340726:927991560 0:244128
****************************************************************************
3591340727:927732174 3591340668:864167346
3591340668:864533538 3591340727:928327236 0:228870
****************************************************************************
3591340728:927655884 3591340669:864121572
3591340669:864197862 3591340728:928006818 0:274644
****************************************************************************
3591340729:927671142 3591340670:864121572
3591340670:864197862 3591340729:927991560 0:244128
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Troubleshooting Two-Way Delay Measurement Configuration
Table 4 lists the debug commands to troubleshoot issues pertaining to the two-way delay measurement
configuration. The Cisco IOS Master Command List at
http://www.cisco.com/en/US/docs/ios/mcl/allreleasemcl/all_book.html provides more information
about these commands.
Caution Because debugging output is assigned high priority in the CPU process, it can diminish the performance
of the router or even render it unusable. For this reason, use debug commands only to troubleshoot
specific problems or during troubleshooting sessions with Cisco technical support staff.
Note Before you run any of the debug commands listed in the following table, ensure that you run the logging
buffered debugging command, and then turn off console debug logging using the no logging console
command.
Table 4 debug Commands for Two-Way Delay Measurement Configuration
debug Command Purpose
debug epmpal all Enables debugging of all Ethernet performance
monitoring (PM) events.
debug epmpal api Enables debugging of Ethernet PM API events.