Cisco Bug: CSCur78381 - After a reboot of SPA-4XCT3/DS0, first 4 packet loss in channelized mode
Feb 13, 2018
- Cisco ASR 1000 Series Aggregation Services Routers
Known Affected Releases
Symptom: This problem has two parts: 1. Either after a reboot of chassis or reset(soft-OIR) of the module/SPA, Individual DS1s de-multiplexed out SPA-4XCT3/DS0 will stop passing traffic for 5-6 seconds immediately after the DS1 line protocol comes up. 2. After the condition #1, traffic passes for a while(~half a minute), and then traffic freezes again for 4-5 seconds on DS1 Serial interfaces and then module operation normalizes and continue to work fine. During the above problematic window, control-plane & PUNT traffic seems to be working fine, as we could see that: 1. Layer-2 connectivity established and we did not observe any missed keepalives. 2. EIGRP adjacency comes up immediately as soon as the line protocol comes up. Conditions: When SPA-4XCT3/DS0 is configured in channelized mode for de-multiplexing DS3 into multiple DS1s.
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Bug Details Include
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