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BGP Over a 64k circuit

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by simon.schofield

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Can any one tell me the advantages or disadvantages of using BGP on a router which is at the access layer. servicing four clients, with no other route out than this one 64k connection into the core network?

3 replies

by iaingeddes

Hi Simon, the question would have to be why would you want to run BGP at the access layer?

BGP is only really of any use for Internet routers ... particularly when you have more than one connection. For the scenario that you describe - a single connection - you would be much better configuring static routing. Static routing has no overhead (so you use your full 64k link for data, not routing updates), no configuration complexities, and creates no load on the CPU/memory of the router.

by career

The only advantage I can think of is it's easier to tell if the branch router is up/down from the core. Just use the "show ip bgp neighbor" command.

Disadvantages:

1) More complex to configure
2) More complex to troubleshoot
3) Higher CPU Load
4) Higher Memory Load
5) Higher load in the 64 K line

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