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Cisco Bug: CSCte39032 - XR 12k 3.6.1: Packet loss with ether SPA

Last Modified

Jan 13, 2017

Products (1)

  • Cisco 12000 Series Routers

Known Affected Releases

3.6.1.BASE

Description (partial)

Symptom: 
Packet loss observed on GigE SPA

The packet drops are seen as Over subscription vlan drops as shown in the following output:

#show hw-module subslot 0/0/0 tcam entry vlan 0 0 0 0 | inc Osub Tue Jan 19 14:29:37.611 EST
VLAN Rx Osub Drop      : Pkt:968         Byte:218600

Conditions:
This issue was observed in IOS XR 3.6.3, when plain IPv4 traffic was sent with a combination of 64-byte, 512-byte, 800-byte and 1512-byte packets over a long period.
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