Inter-vlan routing and network design help

[matt.kurtzhals]

Hello,

We have a remote office which is connected via fiber and also also microwave links.  The fiber is a direct connection terminated into an ONT and then copper to the switches.  We have the layer 3 switches terminating both sides of the fiber.  Then we have also the routers unlinked to those switches.  The routers terminate our microwave t1 connections.  My goal is to have the fiber be the main link and if it were to go down then to failover to the microwave.  Not sure how to achieve this with the switches showing the fiber as directly connected.

Any ideas?

[Reza Sharifi]

Hi,

If you are running OSPF between the sites, sine the fiber directly connects to each switch, it would be the shortest path.  since the Microwave connects to the router first and than the switch, it would the back up path.

HTH

[Gregory Snipes]

Well the easiest way to do this would just be to configure a routing protocal across your layer 3 switches and routers. They would determine that the fiber was the best path use it and not use the T1 unless the fiber went down.

If you do not want to run a routing protocal on these devices you could always do weighted static routing tied to IP SLA track objects.

[matt.kurtzhals]

Can you give a weight to a directly connected network?  I think I should be able to get away with using RIP in this scenario or static. Static may just be easier actually.