BugZero | F5 BugID 644184 - ZebOS daemons hang while AgentX SNMP daemon is wai...

F5 - Defect ID: 644184

ZebOS daemons hang while AgentX SNMP daemon is waiting.

F5 - Defect ID: 644184

ZebOS daemons hang while AgentX SNMP daemon is waiting.

Last updated on July 18th, 2026

BugZero Risk Score
6.7 Medium

Overall: 6.7

Severity: 7.3

Community: 4.2

Lifecycle: 7.0

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Bug Details

Priority: 3-Major
Status: Verified
Impact Category: TMOS

Description

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.

Change history

Links

Original Vendor Announcement

Relevant Products

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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 versions: 13.1.0, 12.1.3, 11.6.2, 11.5.6

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 13.1.0, 12.1.3, 11.6.2, 11.5.6

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F5 - Defect ID: 644184

ZebOS daemons hang while AgentX SNMP daemon is waiting.

F5 - Defect ID: 644184

ZebOS daemons hang while AgentX SNMP daemon is waiting.

Last updated on July 18th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 644184

ZebOS daemons hang while AgentX SNMP daemon is waiting.

F5 - Defect ID: 644184

ZebOS daemons hang while AgentX SNMP daemon is waiting.

Last updated on July 18th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.7 Medium

BugZero Risk Score
6.7 Medium