Forum Discussion

Cirrostratus

Jun 28, 2012

assigning multiple interfaces to VLAN

I have a GTM with a single ethernet connection to a switch. My goal is to establish a second ethernet connection to a second switch for redundancy. But my understanding from our Cisco guys is that I can't etherchannel across two different switches.

From the F5 perspective, it appears that I can simply add a second physical interface to the VLAN. Will that work if I have two interfaces, which are not trunked, in a single F5 VLAN, connected to two different switches?

config

design

nitass
Employee
Jul 01, 2012
Is there a way to configure interfaces to work in an active/standby mode, so I can two interfaces connected to different switches, but only one being active?can't it be done by configuring stp properly?

i do not think bigip has that built-in functionality i.e. active/standby interface. anyway, i have seen this discussion topic but never tested it out.

Interface Failover Script via Monitor

https://devcentral.f5.com/Community/GroupDetails/tabid/1082223/asg/44/aft/1145126/showtab/groupforums/Default.aspx
Hamish
Cirrocumulus
Jul 01, 2012
Posted By smp on 06/30/2012 10:16 PM

Is there a way to configure interfaces to work in an active/standby mode, so I can two interfaces connected to different switches, but only one being active?

You can do this with STP. Just set the priorities so that the blocking link is one of the uplinks. You'll probably need to configure active STP though. And be careful to make sure all your VLANs are configured correctly (As most sites will be using PVST).

H