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Forum Discussion

Indrajit_Basak_'s avatar
Indrajit_Basak_
Icon for Nimbostratus rankNimbostratus
Mar 22, 2014

ECV Health Monitor is not working properly in F5 LTM

Hi, We have same physical server where different applications are running . for example HC-HH and HC-APP. These two application can be accessed by URLS http://lmjedwmsap1.jeddah.cpksa.local:7778/for...
application delivery
availability
citrix
LTM
management
TMSH
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Mar 22, 2014

I guess the bigger question would be what constitutes being "down"? Many applications will "fail", while the web server is still functional. You're looking for a 200 OK response, so that's likely what you're getting. There are generally a few ways to troubleshoot an HTTP monitor:

  1. Command line cURL is a great way to test an HTTP request and corresponding response:

    curl -v http://x.x.x.x:7778/forms/frmservlet?config=wmshcrdc-hh

  2. Tcpdump the monitor itself. This will allow you to see the monitor's request and the server's response:

    tcpdump -lnni 0.0 -Xs0 port 7778 and host x.x.x.x