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Cisco Bug: CSCus78837 - Crash in SLA debug during CFMD restart after ISSU upgrade

Last Modified

May 11, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.2.0.CE

Description (partial)

Symptom:

During an ISSU upgrade with Ethernet SLA operations in progress, and Ethernet SLA debug turned on, CFM-D unexpectedly reloads.
Conditions:
This issue affects ISSU upgrades where the previous Cisco IOS-XR Software is a release between 4.3.2 and 5.1.0 and the upgrade is to Cisco IOS-XR Software Release 5.2.0 or higher.  It only affects the CRS and ASR9K Platforms.  It will only occur if there are configured, in-progress or historical on-demand SLA operations on a MEP on a physical interface (that is, SLA operations on bundle interfaces will not cause the reload), and only when SLA debug is turned on.
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