Last Modified: Oct 16, 2023
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1
Opened: Apr 30, 2017 Severity: 2-Critical Related Article:
K12776
Management connectivity loss over the management cluster IP address. This is caused by a secondary blade temporarily taking over the cluster primary due to starvation of clusterd on the blade running tcpdump.
Loss of connectivity to the cluster floating IP address. The /var/log/ltm clusterd shows timeouts and temporary change of primaryship.
-- A multi-bladed configuration with full traffic load. -- Run tcpdump -i 0.0.
Mitigation: -- Judicious use of tcpdump -i 0.0. Workaround: -- Kill tcpdump from the SSH session to the slot IP address directly or using the console. -- Restart tmm to fix the issue with MPI stream connection loss.
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