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Cisco Bug: CSCtb47692 - VSS: Switch crashed due to EBUS_SEQ_ERROR

Last Modified

Feb 12, 2018

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases

12.2SXI

Description (partial)

Symptom:
After SSO or supervisor failover, EBUS_SEQ_ERROR may be seen and then in some scenarios the device gets reset.
  
This could be triggered if the fabric mode of the newly brought-up line card is different than the default mode.
  
Also other messages may be seen, for example:
FABRIC-SP-6-TIMEOUT_ERR:

Conditions:
This happens only in VSS setup following a SSO failover. The problem can be seen during OIR of a new linecard.
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  • Status
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