From: Tim Devries (TDevries@cyence.com)
Date: Fri Nov 15 2002 - 12:18:45 GMT-3
Right, to go three AS paths deep you would type:
route-views.oregon-ix.net>sh ip bgp  regex ^7500+_[0-9]*_[0-9]*$
BGP table version is 4451210, local router ID is 198.32.162.100
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
   Network          Next Hop            Metric LocPrf Weight Path
*  4.0.0.0          202.249.2.86                           0 7500 2497 1 i
*  4.2.88.0/24      202.249.2.86                           0 7500 2497 1 i
*  4.2.101.0/24     202.249.2.86                           0 7500 2497 1 i
*  4.2.102.0/24     202.249.2.86                           0 7500 2497 1 i
*  9.2.0.0/16       202.249.2.86                           0 7500 2497 701 i
*  9.184.112.0/20   202.249.2.86                           0 7500 2516 3786
i
*  9.186.144.0/20   202.249.2.86                           0 7500 2516 3786
i
*  12.4.125.0/24    202.249.2.86                           0 7500 2516 1239
i
*  12.34.47.0/24    202.249.2.86                           0 7500 2497 1239
i
*  12.144.61.0/24   202.249.2.86                           0 7500 2516 1239
i
*  13.0.0.0         202.249.2.86                           0 7500 2497 5673
i
*  15.254.80.0/21   202.249.2.86                           0 7500 2915 i
*  16.0.0.0         202.249.2.86                           0 7500 2497 33 i
*  17.255.232.0/24  202.249.2.86                           0 7500 2497 701 i
*  20.137.0.0/16    202.249.2.86                           0 7500 3549 i
*  20.137.8.0/22    202.249.2.86                           0 7500 2518 3549
i
*  20.137.28.0/22   202.249.2.86                           0 7500 2497 3549
i
*  20.137.32.0/22   202.249.2.86                           0 7500 2497 3549
i
*  20.137.36.0/22   202.249.2.86                           0 7500 2516 3549
i
*  20.138.0.0/22    202.249.2.86                           0 7500 2497 3549
i
2 paths deep would be:
route-views.oregon-ix.net>sh ip bgp  regex ^7500+_[0-9]*$
BGP table version is 4451044, local router ID is 198.32.162.100
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
   Network          Next Hop            Metric LocPrf Weight Path
*  15.254.80.0/21   202.249.2.86                           0 7500 2915 i
*  20.137.0.0/16    202.249.2.86                           0 7500 3549 i
*  20.138.0.0/16    202.249.2.86                           0 7500 3549 i
*  20.139.0.0/16    202.249.2.86                           0 7500 3549 i
*  20.139.12.0/22   202.249.2.86                           0 7500 3549 ?
*  20.139.16.0/20   202.249.2.86                           0 7500 3549 ?
*> 43.232.0.0/14    202.249.2.86                           0 7500 17506 i
*> 43.232.128.0/19  202.249.2.86                           0 7500 17506 i
*> 43.232.160.0/20  202.249.2.86                           0 7500 17506 I
Etc.
-----Original Message-----
From: Emmanuel Guilain [mailto:emmanuel.guilain@cgey.com] 
Sent: Thursday, November 14, 2002 7:22 PM
To: ccielab@groupstudy.com
Subject: Re: bgp as-path
----- Original Message -----
  From: csc david
  as10--------as4---------as11----------as12
  put  ^4_[0-9]*$  on as10,  it should be 4  and 4,11
  but why not 4 11 12?
If I'm right it's because the * doesn't work for the _ symbol.
So the _ occurs only once.
So there is only the 4 and just another one.
Emmanuel Guilain
This archive was generated by hypermail 2.1.4 : Tue Dec 03 2002 - 07:23:01 GMT-3