[nsp] BGP Best Path Selection Algorithm

[Tuc]

Hi,

	According to :

		http://www.cisco.com/warp/public/459/25.shtml

	The weight is first, local pref is second. But I'm not sure
how it handles :

TTSG-6509b>sho ip bgp 62.253.162.218
BGP routing table entry for 62.253.128.0/17, version 1699823546
Paths: (3 available, best #3, table Default-IP-Routing-Table)
  Advertised to non peer-group peers:
  199.224.14.29 
  4436 3549 1239 5089
    69.31.95.53 from 69.31.95.53 (69.31.95.240)
      Origin IGP, metric 200, localpref 100, valid, external
      Community: 3549:2082 3549:30840 4474:3111 13945:1000 13954:1006
  4436 3549 1239 5089, (received-only)
    69.31.95.53 from 69.31.95.53 (69.31.95.240)
      Origin IGP, metric 0, localpref 100, valid, external
      Community: 3549:2082 3549:30840 4474:3111
  4436 3549 1239 5089, (received & used)
    216.231.107.225 (metric 2) from 216.231.107.225 (216.231.107.225)
      Origin IGP, metric 100, localpref 110, valid, internal, best
      Community: 3549:2082 3549:30840 4474:3111 13945:1000 13954:1006

			and then

BGP routing table entry for 62.252.0.0/14, version 1677738739
Paths: (7 available, best #7, table Default-IP-Routing-Table)
  Advertised to non peer-group peers:
  199.224.14.29 
  6461 5089
    198.32.160.22 from 198.32.160.22 (209.249.254.55)
      Origin IGP, metric 200, localpref 170, valid, external
      Community: 6461:1001 6461:2004 6461:2107 6461:2215 6461:2434 13945:2000 13
945:2001
  6461 5089, (received-only)
    198.32.160.22 from 198.32.160.22 (209.249.254.55)
      Origin IGP, metric 4241, localpref 100, valid, external
      Community: 6461:1001 6461:2004 6461:2107 6461:2215 6461:2434
  1273 5089
    198.32.160.112 from 198.32.160.112 (195.2.1.4)
      Origin IGP, metric 200, localpref 170, valid, external
      Community: 1273:12826 13945:2000 13945:2001
  1273 5089, (received-only)
    198.32.160.112 from 198.32.160.112 (195.2.1.4)
      Origin IGP, metric 0, localpref 100, valid, external
      Community: 1273:12826
  4436 1273 5089
    69.31.95.53 from 69.31.95.53 (69.31.95.240)
      Origin IGP, metric 200, localpref 100, valid, external
      Community: 1273:12826 4474:1111 13945:1000 13954:1006
  4436 1273 5089, (received-only)
    69.31.95.53 from 69.31.95.53 (69.31.95.240)
      Origin IGP, metric 0, localpref 100, valid, external
      Community: 1273:12826 4474:1111
  1273 5089, (received & used)
    216.231.107.225 (metric 2) from 216.231.107.225 (216.231.107.225)
      Origin IGP, metric 100, localpref 180, valid, internal, best
      Community: 1273:12826 13945:2000 13945:2001


	Is it using the one with the /17 because its more specific, 
correct? But where does it say it takes that into account? It seems like
it talks about it per entry, but not between entries. 

		Thanks, Tuc/TTSG Internet Services, Inc.