Trunking with two switches - two ports with same VLANS

[razor]

Hi Guys,

I'm curious if it's possible to "port mirror" two ports.

I would like to connect two cisco switches to two ports from a fortigate 60D. Both switches are duplicates of each other, so I would like to create both switches redundant using two ports from the fortigate ( the ports needs to handle the same VLANs etc. ).

Any idea? Thanks.

[ede_pfau]

I've done this 2 weeks ago although not with Cisco switches.

I've 'stacked' 2 HP switches A5800 running ComOS (ex 3Com). This allows distributed LACP, that is, trunk members to two hardware switches. The firewall side is an A-P cluster of 1500Ds. I had to change the LACP settings (in the CLI) to "mode fast" for quicker failover but the trunks came up immediately.

Net effect: one FGT fails, cluster fails over, trunk bandwidth is reduced to 50%. One switch fails, cluster fails over (because these ports are monitored!), again bw reduced to 50% - but traffic keeps flowing.

Distributed LACP is not supported in every switch OS, that is, LACP members on 2 separate chassis.

[Nils]

razor wrote:

Hi Guys,

I'm curious if it's possible to "port mirror" two ports.

I would like to connect two cisco switches to two ports from a fortigate 60D. Both switches are duplicates of each other, so I would like to create both switches redundant using two ports from the fortigate ( the ports needs to handle the same VLANs etc. ).

Any idea? Thanks.

Your two Cisco switches needs to be in a stack for this to work.