Forum Discussion

F5Learn's avatar
F5Learn
Icon for Nimbostratus rankNimbostratus
Jul 19, 2019

iRule: Same host two ports, if port 1 is not listening traffic should not go on port 2

Any sample iRule available for below scenario? or any other functionality available in F5 that i can use for below case.

 

Scenario:

One host have service1 listening on port 1 (pool#1) and ftp traffic listening on port 2 (pool#2)

if service1 is marked down by the f5 monitor then traffic on ftp port 2 also should stop receiving the traffic.

 

Both ports are configured in separate Virtual servers i.e. service1 pool and ftp pool are separated, have two separate f5 pools.

 

 

devops
iRule poolmonitoring
iRules
  • F5Learn's avatar
    F5Learn
    Icon for Nimbostratus rankNimbostratus
    Jul 30, 2019

    Thank you! those both answers server my two different purposes. Appreciate your help!

     

    Cheers!

  • Stanislas_Piro2's avatar
    Stanislas_Piro2
    Icon for Cumulonimbus rankCumulonimbus
    Jul 19, 2019

    create a new monitor for port 1 with alias port fixed...

     

    assign this monitor to pool2

     

    this configuration will mark pool2 member down if monitor on port 1 fails

  • Lee_Sutcliffe's avatar
    Lee_Sutcliffe
    Icon for Nacreous rankNacreous
    Jul 19, 2019

    You could use a Local Traffic Profile or an iRule to check that both pools are available before selecting the pool for your FTP service.

    I've provided an example of an iRule below:

    when CLIENT_ACCEPTED {
    if {([active_members pool1] < 1) && ([active_members pool2] < 1)} {
        pool pool2
    }
}