Bug ID 666888: tcpdump may take several seconds to start capturing packets on vCMP guests

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP vCMP(all modules)

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,

Fixed In:

Opened: May 26, 2017
Severity: 3-Major
Related Article:


Running a tcpdump may take 3 or more seconds to start capturing packets.


tcpdump takes a slightly longer-than-expected time to start capturing traffic.


This issue occurs when all of these conditions are met: - tcpdump is being run within a vCMP guest on a VIPRION platform. - The guest has more than one blade in-use.


Wait several additional seconds to ensure that the tcpdump operation has a sufficient interval to start capturing packets.

Fix Information

tcpdump now starts capturing packets sooner.

Behavior Change