Dual Homed single 3660

[bertieuk]

Hi

Is it possible to connect a single cisco router to a triangulated switched ethernet network.

The switches have been triangualated for resilience and use both spanning tree and vlans. I would like the router to connect to the two switched with the highest priority bridge IDs.

Thanks

Si

 

[jneiberger]

In other words, are you asking if two different interfaces on the router can be in the same VLAN? I've never tried that with Ethernet interfaces. If the router lets you do it, I'm not sure how it would behave.

You can configure the same subnet on two different serial interfaces, but I've only done that when those two links are terminating on the same router. I suspect that the router won't let you do this on Ethernet interfaces.

One thing you could try is a fault-tolerant transceiver. One end connects to your router and the other two connect to your switches. The transceiver will fail over from one link to the other if it detects that a link went down, and it does it in microseconds.

HTH,
John

 

[NetworkGhost]

Triangulated? What are meaning by that? # switches for redundancy or did I miss that? I I dont think you could make it happen unless the switches were layer 3 and you configured the routers 2 interfaces on separate subnets which would then allow the switches to route the traffic out another port if the other switch went down. I am about 99.00% sure you cant have 2 ports on the smae subnet. unless you could bridge them. But then whats the point of having a router. The best way to make with redundany with 2 switches is to have 2 routers with HSRP running. I may have missed the question though.