Last Modified: Nov 07, 2022
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5
Fixed In:
14.0.0, 13.1.0.6, 12.1.3.6
Opened: Jan 30, 2018 Severity: 3-Major
Rarely, TMM halts and restarts when calculating the BWC pass rate for dynamic bwc policy.
Traffic disrupted while tmm restarts.
-- Using BWC dynamic bwc policy. -- Fair share rate is low. For this to happen, the fair share rate of the instance of dynamic policy has to be less than than 32 times the average packet size of the instance of policy. For example, if the average packet size is 1 KB, then the fair share would be under 32 KB.
F5 does not recommend running the BWC under 64Kbps. Either decrease the number of subscribers or increase the max-rate of dynamic policy.
TMM no longer halts and restarts when calculating the BWC pass rate for dynamic bwc policy when fair share rate is low.
