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Cisco Bug: CSCuj32632 - sup2t:traffic not received from 6848-SFP ports due to rx datapath stuck

Last Modified

Mar 24, 2019

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases

15.0(1)SY4

Description (partial)

Symptom:
All odd or all even ports on 6848-SFP do not receive traffic after a high traffic condition(most likely an L2 loop). This situation would be noticed even after the loop is broken
Due to this :
- remote end would be err-disabled due to UDLD(if configured).
- there would be no connectivity to devices connected on  any of the problem ports.

Conditions:
This issue has been noticed after a layer2 loop has been triggered with interfaces on the 6848 card also part of the loop.
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