Bug ID 458529: Spanning Tree BPDUs May be Sent Faster than Received Hold Timer Values

Last Modified: Nov 14, 2022

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

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 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,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6

Opened: Apr 23, 2014

Severity: 4-Minor


When a BIG-IP system is running spanning tree protocol and receives BPDUs from another device containing a worse root path cost, it may not honor the hold timer value on the BPDUs received, and consequently it will send BPDUs at a faster rate than requested.


Spanning Tree BPDUs sent out more frequently than they should.


Spanning tree is running and has a better root path cost than an adjacent switch that has a lower transmit hold count than what is configured on the BIG-IP system.


Set the transmit hold count on the BIG-IP system to be the same as all other devices on the network that are participating in spanning tree.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips