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Cisco Bug: CSCuw27078 - ISR 4351: IWAN: Missing Packet console mssgs seen during IWAN soak test

Last Modified

Feb 06, 2019

Products (1)

  • Cisco 4400 Series Integrated Services Routers

Known Affected Releases

15.5(3)S0.1 15.6(1)S

Description (partial)

Problem could occur if proper race conditions are met.

Packets are unaccounted for by the attn-sync mechanism in the dplane infra.

Router console logs shows : 
*Sep 10 08:45:12.001: %IOSXE-3-PLATFORM: SIP2: cpp_cp: QFP:0.0 Thread:001 TS:00000098168893368566 %ATTN-3-SYNC_TIMEOUT: msecs since last timeout 98163427, missing packets -111

Traffic  with high CPU util on ISR 4351
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