From: Scott Morris (swm@emanon.com)
Date: Sun Dec 28 2003 - 00:16:31 GMT-3
There ya go! Caffeine on board! :)
(I understand that problem!)
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Brown, Jim
Sent: Saturday, December 27, 2003 12:22 PM
To: Brown, Jim; Pun, Alec CL; ccielab@groupstudy.com
Subject: RE: BGP as-path prepend confusion !
Please allow me to correct myself. I haven't had more than 4 hours a
night for the past week and haven't had any coffee this morning.
The AS Path List reads from right to left with the rightmost side being
the origin.
The AS number is always prepended to the END of the list or the
left-hand side.
-----Original Message-----
From: Brown, Jim
Sent: Saturday, December 27, 2003 9:43 AM
To: 'Pun, Alec CL'; ccielab@groupstudy.com
Subject: RE: BGP as-path prepend confusion !
The AS Path List reads from right to left with the leftmost side being
the origin.
The AS number is prepended to the beginning of the list which is the
left-hand side.
-----Original Message-----
From: Pun, Alec CL [mailto:Alec.CL.Pun@pccw.com]
Sent: Saturday, December 27, 2003 3:01 AM
To: ccielab@groupstudy.com
Subject: BGP as-path prepend confusion !
Hi group,
I am confused by the command "set as-path prepend" as the new AS #
should be appended instead of prepended to the originated AS #, right ?
My assumption of prepend is that new AS # should be added to the left of
the AS-Path.
rgds,
alec
R1
router bgp 65400
no synchronization
bgp log-neighbor-changes
network 3.3.3.0 mask 255.255.255.0
neighbor 192.168.4.1 remote-as 1
neighbor 192.168.4.1 route-map prepend-as out
no auto-summary
route-map prepend-as permit 10
set as-path prepend 65401 65402
!
R2#sh ip bgp
BGP table version is 8, local router ID is 204.100.100.97 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
*> 3.3.3.0/24 192.168.4.2 0 0 65400 65401
65402 i
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