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Cisco Bug: CSCut65721 - Ingress Drop packet warning.

Last Modified

May 21, 2018

Products (1)

  • Cisco LAN Switch Software

Known Affected Releases

1.0(3i)

Description (partial)

Symptom:
You may see following warning messages for some multicast or traffic for non existing BD. 
Then leaf will drop the packets and generate the warning messages. 

However, if that is the case, we should not raise warning for this type of issues. 

Mar 31 03:00:11 192.168.254.7 <188>: Mar 31 03:00:12 leaf-lq050109 %LOG_LOCAL7-4-SYSTEM_MSG [F120368][raised][threshold-crossed][warning][sys/qosm/if-[eth1/50]/class-level3/fault-F120368] TCA: ingress drop packets rate(qosmIngrPkts5min:dropRate) value 88 raised above  threshold 10

Conditions:
This is typical seen in the condition where multicast traffic from the fabric is flooded.  These packets may be flooded to a leaf for which there are not endpoints in that EPG.  In that case, the packets will be dropped.

These drops will shows as LB drops as well as class 0 drops with the vsh_lc port counters output in "show platform internal counters port <port #>".

Related Community Discussions

INTRA EPG communication Cisco ACI
Need help in intra EPG and inter EPG communicaton in Cisco ACI. working on network centric approach , BD=EPG=VLAN. created EPG 20 and associated interfaces 104/1/1 (leaf 104 , ip address to host 10.253.20.10)  and 105/1/1 (leaf 5, , ip address to host 10.253.20.11).  bridge domain subnet 10.253.20.1/24. created application profile etc. links up . both hosts can ping gateway .1 but cannot ping each other. same goes with inter EPG comunication. 10.253.30.10 (EPG 30) can ping gateway of EPG 20 &amp; EPG ...
Latest activity: Jul 19, 2016
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