8. The BGP attribute weight is used first on Cisco routers, but this is a Cisco-proprietary attribute. The first attribute considered on non-Cisco routers is local preference - the highest LOCAL_PREF is preferred.

9. (A, B, C). Weight is the first value considered in BGP path selection among multiple paths - and when the routers are Cisco routers!

There are three major points to remember about the weight attribute - it's Cisco-proprietary, it's locally significant only, and it's never advertised to other routers.

10. BGP sometimes requires the sessions to be reset in order for configured changes to take effect. Problem is, that can require tearing down the existing BGP connections - unless you use a soft reset, which resets the sessions without tearing the adjacencies down.

To perform a BGP soft reset:

R1#clear ip bgp * soft

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