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ca2025's avatar
ca2025
Icon for Nimbostratus rankNimbostratus
Apr 10, 2025

F5 GTM ltm log error"unknown cgc sni"

I have a pair of BIG-IP i2600 here, used as GTM, software version 13.1.1.2. Current backup machine ltm log alarm err tmm1 [12245]: 01220001:3: TCL error: _cgc_pick_clientside<CLIENT DATA>- unknown ...
application delivery
cgc
sni
tcl error
akonu's avatar
akonu
Icon for Moderator rankModerator
Apr 12, 2025

ca2025 

I found an article that could help answer your question on our myf5 portal, Please click on the link below.

K49027541: 01220001:3: TCL error: _cgc_pick_clientside <CLIENT_DATA> - unknown cgc sni
https://my.f5.com/manage/s/article/K49027541

If you are unable to resolve the issue, I suggest raising a support ticket. 

I will also like to point out that your are currently running an unsupported version of code and you will need to upgrade the software before an engineer can assist you with the issue.

 

K5903: BIG-IP software support policy

https://my.f5.com/manage/s/article/K5903

 

K9476: The F5 hardware/software compatibility matrix

https://my.f5.com/manage/s/article/K9476

 

I hope this helps.