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atultilekar_718's avatar
atultilekar_718
Icon for Nimbostratus rankNimbostratus
Jan 14, 2016

Monitor not working.Pool shows down.

Monitor tcp_5061 not working

Converted config using pearl script for F5.

ltm monitor tcp tcp_5061 { defaults-from tcp

interval 12
timeout 10
destination *:5061 Unknown (Enabled) - The children pool member(s) either don't have service checking enabled, or service check results are not available yet.

Pool is configured with

nodes are configured with port 443.

tcp_5061 monitor configured on F5.

interval:-12 seconds Timeout:-37 seconds Alias Address:-* All Address

Alias Service Port:- 5061

The pools are not coming UP.Able to ping the IP from F5 cmd.

2 Replies

  • Hi

     

    Is port 5061 open on the app servers? Can you telnet to the server on this port. Have you confirmed with the server admins that port 5061 is open?

     

    Do you need to monitor on the alias port or can you monitor port 443 directly?

     

  • Although your question is quite hard to read (didn't you notice that??), it's generally not recommended to set a timeout that is lower than the interval (actually I'm quite surprised that this is even possible). Try setting a timeout which is larger (f5 recommendation: 3 * interval + 1 seconds).

     

    See https://support.f5.com/kb/en-us/solutions/public/12000/500/sol12531.html?sr=50894335 for further hints (this one also states "Configuring an appropriate interval/timeout ratio is important for simple monitors. In most cases, the interval/timeout should have a timeout value of three times the interval, plus one. For example, the default ratio is 5/16. Verify that the ratio is properly defined.")