[c-nsp] bgp bestpath w/o bgp always-compare-med

[Nikolay Shopik]

Hi,

I have rather strange best path selection. We have 3 uplinks, AS_PATH to 
one of prefix is same for all 3 prefixes, so my assumption it will use 
oldest one, because everything else is same. Except one thing I notice 
one of uplinks send us metric, while two others does not.

Here is example, first one is oldest, second is youngest, but it still 
choices last one. While should choice first, because everything else is 
same.

   39792 9002 25532
       Origin IGP, metric 400, localpref 100, valid, external
       Community: 39792:3000 39792:3004
   41095 9002 25532
       Origin IGP, localpref 100, valid, external
       Community: 41095:2000 41095:2001 41095:2100 41095:2101
   30733 9002 25532
       Origin IGP, localpref 100, valid, external, best
       Community: 9002:0 9002:64667 30733:6022

I start to believe it using metric anyway, while I don't use that 
option. What I missing here?