Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Thiyagu's avatar
Thiyagu
Icon for Cirrus rankCirrus
May 19, 2020

Need help in fixing the error while creating a VLAN in common partition

Hello All, i'm finding below error log while creating a VLAN in Common partition, Could you please help me to fix the issue? root@(LB01)(cfg-sync Standalone)(Active)(/Common)(tmos)# create /net vl...
application delivery
big-ip
LTM
Shaun_Simmons's avatar
Shaun_Simmons
Icon for Employee rankEmployee
May 19, 2020

While troubleshooting, did you verify the current VLANs available/already created? The error states VLAN 4094 currently exists for VLAN name "HA_V". You will need to delete the "HA_V" VLAN first, before creating a new VLAN with the same VLAN number. Or, rerun your command, specifying a new VLAN number.

Example: create /net vlan HA_VLAN interfaces add { 4.0 { tagged }} tag 4095

 

Helpful Commands:

Show the current configured VLANS: show net vlan

KB article Links for VLAN add/modify/delete: https://support.f5.com/csp/article/K14961

 

I hope this helps!

 

Cheers!