Cisco Bug: CSCsy92142 - The Serial interface on a choc48 linecard stays in UP/DOWN state
Jan 31, 2017
- Cisco 12000 Series Routers
Known Affected Releases
Symptoms: The serial interface on a channelized OC48 linecard stays in the UP/DOWN state after encountering Layer 1 alarms (PRID or PAIS). The interface continues to be in the UP/DOWN state even after the Layer 1 alarms are cleared. The interface is configured for PPP encapsulation, and path level delay triggers are enabled on this interface. The link shows UP, but the PPP negotiation will be stuck in Echo Request Sent. Conditions: This symptom is observed with a 12.0(32)S11o-based image for channelized DS3 Engine 3 linecards with alarm delay triggers configured. The problem will be seen only with momentary path level alarms.
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