BGP Question

[benolyndav]

WE have a two connections to our ISP same AS and exact same BGP config exept for neigbor statement obviuously,  My question is  can I use BGP Weight attribute on a per prefix basis and send traffic down either link depending on weight or do I have to stipulate the weight under the neigbor staement where this affects all routes.?? also with this two link set up how will BGP route the traffic by default what will it base its routing decision on.??

Thanks

[Giuseppe Larosa · Accepted solution]

Hello @benolyndav ,

are you using real devices or an emulation tool in your LAB ?

if you are connecting via a L2 switch of course shutting down the interface will not tear down the remote side, but if they are directly connected it should.

In real world instead of using low BGP timers you can try to use BFD in cooperation with your ISP ( both sides should use BFD to achieve fast detection)

Hope to help

Giuseppe

[benolyndav]

Hi Giuseppe

Yes using CML and my nodes are directly connected, thanks for the very useful info