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New Member

Questions about interconnecting 2 6513's

Hi all,

My SW1 and SW2 are interconnected via ISL trunks (Port 2 of the SUP720 module). This works fine as I can ping a PC from SW1 to SW2 and a specific VLAN.

My questions is:

if for some reason the Trunks go down, how does the Stations on SW2 connect to the VLAN IP that was programmed on SW1? I cannot add the same VLAN IP Address on both switches as there's a conflict.

Ex: VLAN104 has an IP of that was configure while connected to SW1.

I cannot do the same on SW2 as the IP is confliting.

How can this be resolved?

Would like to have theses 2 switches in an Active/Active mode, but how do they both share the same VLAN IP's?

Thanks for your help.


Re: Questions about interconnecting 2 6513's


Do u have any edge switches connected to these 6513's.Give u r the toplogy so that we can answer u further.

For gateway redundecny u can use HSRP.



New Member

Re: Questions about interconnecting 2 6513's

no there is no edge switch,

See attached document for topology

New Member

Re: Questions about interconnecting 2 6513's

here is the topology