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Whesther_Manuel's avatar
Whesther_Manuel
Icon for Nimbostratus rankNimbostratus
Apr 26, 2013

Redirect traffic depending nodes active/passive

 

Good afternoon.

 

 

 

I Have this problem:

 

 

Exist two nodes (active-passive), in this nodes was installed an agent it work for port 5555 that is always up. I need to direct traffic to the node that is active, the active server will port 7777 will have up. I have configured the virtual server and pool, but can not find the irule to let me choose the node is active, the best performances I have obtained the following irule

 

 

 

when LB_SELECTED {

 

 

if { [IP::addr [LB::server addr] equals 10.193.30.56] and [LB::status pool Pool_ORIB_APP_PRD_7777 member 10.193.30.56 7777 up]} {

 

persist source_addr }

 

else {

 

LB::reselect node 10.193.30.52 5555

 

 

}

 

 

 

The configuration complete is:

 

 

virtual VS_DATA_PROTECTOR_ORRIB_PRD {

 

snat automap

 

pool Pool_DATA_PROTECTOR_ORIB_APP_PRD

 

destination 10.193.30.61:5555

 

ip protocol tcp

 

rules LB_STATUS_DATA_PROTECTOR

 

vlans internal enable

 

}

 

 

pool Pool_DATA_PROTECTOR_ORIB_APP_PRD {

 

monitor all tcp

 

members {

 

10.193.30.52:5555

 

10.193.30.56:5555

 

 

pool Pool_ORIB_APP_PRD_7777 {

 

monitor all http

 

members {

 

10.193.30.52:7777

 

10.193.30.56:7777

 

 

rule LB_STATUS_DATA_PROTECTOR {

 

when LB_SELECTED {

 

 

if { [IP::addr [LB::server addr] equals 10.193.30.56] and [LB::status pool Pool_ORIB_APP_PRD_7777 member 10.193.30.56 7777 up] } {

 

persist source_addr }

 

else {

 

LB::reselect node 10.193.30.52 5555

 

 

}

 

}

 

 

 

This configuration works the second or third attempt, the first one fails. I got an event before it is chosen a node, in which case you can go to the server traffic in passive state

 

 

I appreciate the help you can give me.

 

 

 

 

application delivery
dev
devops
iRules

2 Replies

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  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Apr 28, 2013
    not sure if i understand question correctly.

    you are saying that service is on port 5555 which is always up but active node is determined by port 7777, aren't you? if so, can we make health monitor to port 7777?

    e.g. 

    [root@ve10:Active] config  b pool Pool_DATA_PROTECTOR_ORIB_APP_PRD list
pool Pool_DATA_PROTECTOR_ORIB_APP_PRD {
   monitor all myhttp
   members {
      10.193.30.52:5555 {}
      10.193.30.56:5555 {}
   }
}

[root@ve10:Active] config  b monitor myhttp list
monitor myhttp {
   defaults from http
   dest *:7777
}
  • Whesther_Manuel's avatar
    Whesther_Manuel
    Icon for Nimbostratus rankNimbostratus
    May 02, 2013
    Good Morning.

     

     

    Nitass, you understood the question correctly. I tested by setting the monitor to the port 7777 and it worked.

     

     

    had taken the road more difficult, thank you very much for the help.

     

     

    regards