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Cisco Bug: CSCvv63412 - ASA dropping all traffic with reason "No route to host" when tmatch compilation is ongoing

Last Modified

Oct 27, 2020

Products (1)

  • Cisco Adaptive Security Appliance (ASA) Software

Known Affected Releases


Description (partial)

- All traffic is dropped with reason "No route to host"
- This includes to-the-box traffic and through-the-box traffic

- The problem is observed when tmatch is running and the node is made active to pass traffic. This can be verified using:
show proc cpu-usage non-zero sorted | in tmatch

- Failover hello packet drop continues even when the unit role is changed to standby
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  • Full Description (including symptoms, conditions and workarounds)
  • Status
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