Bug ID 644184: ZebOS daemons hang while AgentX SNMP daemon is waiting.

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 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, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3, 11.6.2, 11.5.6

Opened: Feb 09, 2017

Severity: 3-Major

Related Article: K36427438

Symptoms

ZebOS daemons hang while AgentX SNMP daemon is unresponsive.

Impact

Dynamic routing may be halted for the duration of AgentX daemon being busy.

Conditions

- Dynamic routing is enabled. - SNMP is enabled. - SNMP is unresponsive which could be caused by several issues such as snmpd calling an external script that takes several moments to return or mcpd is slow to respond to snmpd queries.

Workaround

If snmpd is calling external scripts that take several moments to return, then stop using the external script.

Fix Information

ZebOS daemons no longer hangs while AgentX is waiting.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips