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hc_andy_35682's avatar
hc_andy_35682
Icon for Nimbostratus rankNimbostratus
Feb 18, 2010

Difference between https and https_443 monitor?

Hi All,

 

 

Could someone please explain to me the difference between the https and https_443 monitors that come with BIG-IP LTM 10.1.0. The only difference I see is in reference to the "Alias Service Port" for both monitors. Not sure what the difference is beteen "All Ports" and "HTTPS".

 

 

https:

 

Alias Address * All Addresses

 

Alias Service Port * All Ports

 

 

https_443:

 

Alias Address * All Addresses

 

Alias Service Port HTTPS

 

 

I presume that with the Alias Service Port set to HTTPS, the monitor will just telnet to the HTTPS port on port 443. What does the "ALL Ports" in the https monitor do then - tries every single port???

 

 

Thanks.

 

 

Andy
management
monitoring

1 Reply

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Feb 18, 2010
    Hi Andy,

     

     

    The alias port can be used if you want to LTM to monitor a port that is different than the one the pool member is defined on.

     

     

    One example is if the pool members are defined on port 0 (any) and you want to check if the pool member answers on port 443.

     

     

    Another example is if you want to check both port 80 and port 443 and require both services to be up in order to consider the server up in both an HTTP and HTTPS pool. You can also apply monitors to nodes to accomplish this this. As a node by definition is just an IP address, you need to specify which port LTM should check the node on.

     

     

    For standard pool member monitors, you can leave the alias address and port set to * and the monitoring daemon, bigd, will use the pool member's IP and port for the monitor requests.

     

     

    Aaron