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Redundant routing on 6200m switch stack

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  • 1.  Redundant routing on 6200m switch stack

    Posted Nov 02, 2023 01:18 AM

    Hi, I have some new 6200m switches coming and originally they were to be stacked and then connected to an external internet provider for routing. We only had one connection to them but are now getting a second redundant connection.

    I believe this is in some form of active/passive set up (they may be using BGP on their end).

    I have been asked to set up the stack so that we have one connection each to the provider into different switches on the stack and routing is across one link with the other for failover if the live one fails on the providers end.

    Does anyone know how to configure this?

    I was thinking I need to configure something like OSPF or IBGP. I haven't configured either of these before but I don't even know which configuration to look into. Any help would be greatly appreciated.

  • 2.  RE: Redundant routing on 6200m switch stack

    Posted Nov 03, 2023 03:53 AM

    Hi, the routing protocol you use has to match the provider. The ISP should provide all the details needed to set this up.

    If they don't provide any routing protocol then you will have to add two static default routes. The backup route has a less preferred metric. This concept is sometimes called a floating route. This provides you with the ability to failover only if the physical link fails on the primary. You would need to use a routing protocol or a path detection mechanism to do better which is beyond the complexity that could be explained in a forum like this.

  • 3.  RE: Redundant routing on 6200m switch stack

    Posted Nov 06, 2023 07:54 PM

    Thanks for replying. Still waiting to hear from service provider on what they need to see/have configured on our end. I hope the 6200m switches are capable of doing what is required in a stack configuration.