Forum Discussion
Amit_Kumar9602
Altocumulus
Jan 08, 2025Do Active and Standby L4 Devices Both Send RST on TCP Health Check Failure?
Hello. I have a question regarding the operation of F5 devices, and I would like to ask for your guidance. 1. If a TCP health check fails, do both the Active and Standby L4 devices each send...
- Jan 08, 2025
Hi Amit_Kumar9602,
for your new questions:
- https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-monitors-reference-12-0-0/2.html
- https://my.f5.com/manage/s/article/K49435003
- The active device is the only one that processes the traffic for your applications if the service is down and the monitor marks the service down, the status of the VS will become offline and it restarts all connections to avoid send users to unresponsive servers.
waqas34
Cirrus
Jan 08, 2025Whether both active and standby Layer 4 (L4) devices send TCP RST packets in response to a health check failure depends on the configuration of the devices and the failover or load-balancing mechanism they use.
- Amit_Kumar9602Jan 08, 2025
Altocumulus
Could you explain in more detail? Or is there any reference document I can check? Is it possible that no RST packet is sent even if non-floating IP is used?
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