Bug ID 591495: VCMP guests sflow agent can crash due to duplicate vlan interface indices

Last Modified: Nov 07, 2022

Affected Product(s):
BIG-IP vCMP(all modules)

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

Fixed In:
13.0.0, 12.1.2

Opened: May 05, 2016

Severity: 2-Critical


When a VCMP guest uses sflow, the sflow agent will crash when it tries to add a row to its internal data structure and finds the key already exists for some other entry.


sflow agent will crash.


This issue can occur on systems with VCMP guests, its occurrence is is more likely with a higher number of cores.



Fix Information

Make sure the allocated interface index for a vlan is not already taken by another interface object.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips