Last Modified: Jul 13, 2024
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
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, 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
Fixed In:
13.1.0
Opened: Jan 16, 2017 Severity: 4-Minor
For chassis based platforms such as 2400 and 4800, there is a primary link and a secondary link from a blade to every other blade in the chassis. Both hidden links form a trunk. Sometimes the traffic is not divided between both links in a uniform way.
One link may be quite busy, while the other link is relatively idle.
The exact condition under which this occurs is not well defined, but depends on the traffic.
None.
The fix improves the hashing algorithm such that traffic is distributed between both links in a more uniform way.