Bug ID 789181: Link Status traps are not issued on BIG-IP VE systems

Last Modified: Sep 14, 2023

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

Known Affected Versions:
13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1

Fixed In:
8.3.0, 16.0.0, 15.1.2

Opened: Jun 03, 2019

Severity: 3-Major


The Link Status traps, both F5 proprietary and standard LinkUp/LinkDown are issued on the BIG-IP hardware but not on BIG-IP Virtual Edition (VE) configurations.


Log messages are issued and SNMP traps are issued if an SNMP trap destination is configured. On a VE-based BIG-IP system, these logs and traps do not occur. An SNMP client waiting for a Link Status trap on an administrative enable or disable then, does not receive the trap.


This occurs when interfaces on hardware-based BIG-IP systems or VE-based BIG-IP configurations experience link status events (links go up or down, or are administratively enabled or disabled).



Fix Information

VE now issues link status messages (which will cause traps to be issued) when interfaces on VEs are administratively disabled and enabled. The underlying interface status impacted by cables being plugged/unplugged must be monitored on the underlying system (the hypervisor) and is not logged by VE. If an interface on VE is not configured, then it is in the uninitialized state. If the interface in that state is disabled/enabled, the Link status message issued on enable is Link DOWN.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips