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Cisco Bug: CSCub08310 - ASA "write standby" fails with "Failed to initialize interface" error

Last Modified

Feb 17, 2018

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

8.4(3.9)

Description (partial)

Symptom:

"write standby" command may fail to synchronize configuration from active ASA to standby ASA. The following error messages may be printed on the standby unit:

Beginning configuration replication from mate.
ERROR: open(np/port/ec/40/10/23/24/25/26/-1/-1/-1/-1/-1/-1/-1/-1/-1/-1/-1/-1) failed.
ERROR: open(Po11) failed.
ERROR: Failed to initialize interface inside
ERROR: Add interface failed.

if "debug fover fail" is enabled. This causes all "nameif" commands being lost from context configuration and standby configuration becomes unsynchronized with active:

Number of interfaces on Active and Standby are not consistent.
If the problem persists, you should disable and re-enable failover 
on the Standby.

Conditions:

ASA 8.4(3.9). Exact conditions are not known yet.
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