Forum Discussion
benlui_9160
Nimbostratus
NimbostratusSwitch "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
benlui_9160Hi 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- benlui_9160or simply I can use management ip address as failover address?
hoolioCirrostratus
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