Last Modified: Oct 06, 2020
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Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10, 11.6.0, 11.6.0 HF1
12.0.0, 11.6.0 HF2, 11.5.2, 11.4.1 HF9
Opened: Sep 15, 2014
Related AskF5 Article: K16255
In rare cases, the VIPRION C4800 chassis might experience an inability to establish some connections due to losing packets in one direction while in transit between blades.
When the problem is due to this issue, one or more 5.x or 6.x interfaces show status as 'up' but the corresponding media as 'none'. Inability to establish some connections. The problem is consistent, depending on source and destination IP and port.
VIPRION C4800 chassis.
VIPRION C4800 backplane interfaces are now given proper settings to prevent unidirectional traffic issues.