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

Forum Discussion

Vladimir_Akhmarov's avatar
Vladimir_Akhmarov
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May 20, 2026

BBRv3 Support

Hello, Community!   According to  https://my.f5.com/manage/s/article/K50411377 BBR is supported on F5 boxes since TMOS 14.1.0   According to  https://github.com/google/bbr BBR version 3 should ...
TMOS LTM
Jeff_Granieri's avatar
Jeff_Granieri
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May 28, 2026

Hi Vladimir_Akhmarov​ ,

 

The short answer is TMOS currently uses BBRv1 since this is based off Linux Kernel TCP stack.  TMOS BBR implementation does not cover ECN/Loss rates which are part of the BBR v2/v3 descriptions.  However BIG-IP CNF does support BBrv2 article here CNF BBRv2.