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Forum Discussion

Michaelyang's avatar
Michaelyang
Icon for Cirrostratus rankCirrostratus
Nov 29, 2022
Solved

Http monitor on different port

Hello , Is it possible that the port on the http monitor is not the same as the port on the service? EX. F5 monitor 1111 port But the pool server port is 2222 I thought about using an external...
application delivery
  • Patrik_Jonsson's avatar
    Patrik_Jonsson
    Nov 29, 2022

    Yes, you can. It's called an Alias port and it's available in the HTTP Monitor settings:

    Kind regards,
    Patrik

     

Daniel_Wolf's avatar
Daniel_Wolf
Icon for MVP rankMVP
Nov 29, 2022

Hi Michaelyang,

that is doable. Just create a custom monitor of the type HTTP (or HTTPS) and specify an Alias Service Port.
The default value for this setting is *. If * is used, the monitor will use the member port. If you specify a port, like 1111, this port will be used.
See also: K18325135: How to use a custom service port for health monitors 
EDIT: from  AskF5 >> BIG-IP Local Traffic Manager: Monitors Reference Monitors Concepts 
"Monitor destinations
By default, the value for the Alias Address setting in the monitors is set to the wildcard * Addresses, and the Alias Service Port setting is set to the wildcard * Ports. This value causes the monitor instance created for a pool, pool member, or node to take that node’s address or address and port as its destination."

KR
Daniel