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Ahmedahmed_1805's avatar
Ahmedahmed_1805
Icon for Nimbostratus rankNimbostratus
Dec 24, 2014

additional Trunk link between 2 LTM load balancer in HA vlan

if we want add a trunk link between 2 LTM Load balancer with LACP protocol what impact dose it have on running system?

 

we already configured HA vlan between 2 LTM load balancer using 1 trunk link, additionaly we want to add one more link to make it redundant........

 

4 Replies

  • NO, mgmt interface not using for failover. instead we are using HA vlan with a trunk link between two LTM load balancer as failover link......

     

    ok for force offline ...... what you suggest about network failover option in high availability section in LTM

     

  • NO, mgmt interface not using for failover.

    it is the best practice (to also setup network failover via management interface).

    F5 recommends that you configure network failover to communicate over the management network, in addition to a TMM network. Configuring network failover in this way creates a reliable failover communication channel while the system initializes, and before the TMM network connectivity channels are fully established. To do this you must configure a failover unicast address and a failover multicast address for each device group member.
    

    sol14135: Defining network resources for BIG-IP high-availability features (11.x)

    https://support.f5.com/kb/en-us/solutions/public/14000/100/sol14135.html
  • Hamish's avatar
    Hamish
    Icon for Cirrocumulus rankCirrocumulus

    Yes. Management link pretty much MUST be used for failover. Because its the only link to come up in time that a rebooting unit wont take over the service before it realises it doesnt need to...