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Cisco Bug: CSCum13594 - [Ares]: Interface MTU lost on MIO npumgr recovery.

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0

Description (partial)

Symptom:
Egress packets exceeding default MTU size are discarded on affected interfaces. This can cause failures of control protocols such as BGP.

Conditions:
MIO switchover/reboot or npumgr restart resets MTU config for all interfaces transported over the local ports.
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