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Sandeep_374170's avatar
Sandeep_374170
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Oct 16, 2018

F5 says application server node down: icmp monitoring fails

Hi,   We are using F5 version BIG-IP 11.6.1 Build 0.0.317 Final. Everything was working fine but suddenly on Friday the application client were not able to connect with application server. When I ...
application delivery
BIG-IP
F5_Learner_3295's avatar
F5_Learner_3295
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Oct 16, 2018
Hi,

1.After removing the icmp monitoring now application client is able to connect to application server - **Can you confirm which monitor you are using when the icmp was removed.**

2.can you paste the tcpdump command which you used to check the icmp packets.

Regards
Sandeep_374170's avatar
Sandeep_374170
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Oct 16, 2018

Hi,

 

Please find my answer inline

 

1.After removing the icmp monitoring now application client is able to connect to application server - Can you confirm which monitor you are using when the icmp was removed. [Sandeep]: No monitor, the status it shows "Unknown (Enabled) - Node address does not have service checking enabled"

 

2.can you paste the tcpdump command which you used to check the icmp packets. [Sandeep]: tcpdump -i Service -i Admin host 10.1.130.70 -s 0 -XX For manual ping I can see the traces were captured. I mean from terminal when I execute "ping 10.1.130.70 -I Service"

 

/Sandeep