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G_Q_245664's avatar
G_Q_245664
Icon for Nimbostratus rankNimbostratus
Feb 25, 2016

LTM - Setting dependancy between monitors

Not sure if this is even possible but here is the scenario:   I have a pool of IIS servers configured as members of two sets of pools based on TCP ports configured in IIS. (I was told that you ne...
application delivery
application monitors
iRules
LTM
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP

Hi George,

 

you could attach a TCP:10000 and HTTP:10001 monitor to both pools (by specifying "Alias Service Ports") and set the monitor requirment to all monitors. On this way the pool members would become active if both services are running.

 

And just keep the default ICMP-Monitors on the node-level without any changes...

 

Cheers, Kai

 

David_M's avatar
David_M
Icon for Cirrostratus rankCirrostratus
Jun 25, 2019

Meaning he should attach http monitor on TCP:10001 pool and in the alias address and port add the other pool member IP:10000.

 

But why does he need to do it on both?

  • Kai_Wilke's avatar
    Kai_Wilke
    Icon for MVP rankMVP
    Jun 27, 2019

    Hi DavidMas,

     

    yes...

     

    If you don't specify an alias address and port the monitor will start to probe the individual Pool Member IP/Ports.

    If you specify an alias address and/or port the monitor will probe a service via a given IP/Port (probably outside of your Pool), but will have an impact on the availability of the Pool where the Monitor is attached.

     

    Cheers, Kai