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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

Bug Trend ACI-FabricSwitch FY17
ACI Fabric(leaf/spine) Switch に関する不具合で、1 ヶ月間に関連 SR の報告が多かったもの Best 5 です。 Partner や User 自身で解決したものは含まれていないため、実際に発生した件数の Ranking ではありません。   2016 年 12 月 | BugID Title CSCuz19695 Stale endpoint on Border Leaf after EP move CSCuz73973 Stale endpoint after EP moves outside of fabric CSCuz99892 TEP-to-TEP counters are unreliable when running in Path mode or 931xx vpc CSCvc40979 DNS not resolving for hostnames with underscore CSCvb72043 EGR_L3_NEXT_HOP table exhausted by duplicate MAC entries.   2016 年 11 ...
Latest activity: Nov 08, 2016
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