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New Member

6500 as a WAN router - best practice?

We are wanting to move our WAN connections off a 7200 to 6500's. I am trying to determine best practice for configuring of the ports. Right now we have a single 7200 but will be moving to a dual-6509 core. The plan is for most of the connection to go to 6509-A but we will setup a port on the 6509-B that matches in case 6509-A fails we can manually move the connection over.

For the connections that come in as ethernet hand offs what is the best practice to configure the port? Should we do a "no switchport" and just assign the IP to the interface similar to the 7200 config or should we setup a vlan for the WAN connection and then assign that vlan to the switch port?

What else do I need to consider before making this transition?

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Hall of Fame Super Blue

Re: 6500 as a WAN router - best practice?

I would configure the ports as L3 ports ie. "no switchport" and assign the IP to the interface. Setting up a vlan for the WAN connections introduces STP where you don't need it.

Apart from routing protocol support and line terminations which i'm assuming you have already checked the only thing i would consider (if you haven't already) is to use a redundant supervisor in the 6500 chassis for added redundancy.

Jon

3 REPLIES
Hall of Fame Super Blue

Re: 6500 as a WAN router - best practice?

I would configure the ports as L3 ports ie. "no switchport" and assign the IP to the interface. Setting up a vlan for the WAN connections introduces STP where you don't need it.

Apart from routing protocol support and line terminations which i'm assuming you have already checked the only thing i would consider (if you haven't already) is to use a redundant supervisor in the 6500 chassis for added redundancy.

Jon

New Member

Re: 6500 as a WAN router - best practice?

We do have dual Sup720's in the 6500 and are working thought the BGP and EIGRP configs right now.

Hall of Fame Super Blue

Re: 6500 as a WAN router - best practice?

Then you should be fine.

Good luck.

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