Cisco Bug: CSCuq01572 - ASR1K:SPA-4XT-SERIAL System hang due to zero clock on DTE
Sep 17, 2019
- Cisco ASR 1000 Series Aggregation Services Routers
Known Affected Releases
Symptom: System hangs when QFP memory is exhausted due to buffer build up at interface level and SIp level. Conditions: When any ports on the serial spa present on the chassis are connected to a remote equipment that is not transmitting any clock (This can be verified by the command "show controller serial <slot/subslot/port>" then this may result in buffer fill up at interface level and SIP level. When the output of teh above command displays 0 rx clock and the interface is admin up state(protocol down) then there is a risk of buffer build up. This is applicable only for the SPA SPA-4XT-SERIAL. and no other SPAs.
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