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benlui_9160's avatar
benlui_9160
Icon for Nimbostratus rankNimbostratus
Mar 23, 2010

Switch "Serial failover" to "network failover"

guys,

 

 

i am using LTM 1600 HA pair v9.4.7 with serial hardwired failover with vlan failsafe. I want to relocate the secondary LTM to another room so I want to use "network failover" instead of "serial failover". Both LTM will keep all existing IP addresses (both LTM stay in same network segment).

 

 

From F5 manual, I just need to enable network failover in "HA" admin page. Do I need to reboot/reconfig the both LTM? After I enable the network failover, can I just unplug the serial failover cable without causing any downtime/failover?

 

 

my LTM ip addresses:

 

LTMA management ip:10.10.10.1

 

LTMB management ip:10.10.10.2

 

 

LTMA local ip (external vlan): 192.168.68.1

 

LTMB local ip (external vlan): 192.168.68.2

 

floating ip (external vlan) : 192.168.68.3
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  • benlui_9160's avatar
    benlui_9160
    Icon for Nimbostratus rankNimbostratus
    Mar 28, 2010
    Hi sir,

     

     

    Can I just put LTM local ip addresses (192.168.68.1 & 2) as failover addresses?

     

    Since for redundancy, LTMA port 1 & 2 are formed link aggregation group for external, port 3 & 4 are formed another link aggregation group for internal.

     

     

    my LTM ip addresses:

     

    LTMA management ip:10.10.10.1

     

    LTMB management ip:10.10.10.2

     

     

    LTMA local ip (external vlan): 192.168.68.1

     

    LTMB local ip (external vlan): 192.168.68.2

     

    floating ip (external vlan) : 192.168.68.3
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Mar 29, 2010
    For 10.x, you need to configure the management port and a switch port pair of self IP's for failover. I'd suggest either using a dedicated VLAN for sync or an internal VLAN. I believe the LTM config guide describes the high availability/network failover requirements fairly well.

     

     

    Aaron
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