From: wangstone373 (wangstone373@hotmail.com)
Date: Sat Jan 17 2004 - 02:22:15 GMT-3
Hi, Bob,
I think Alec want to see "black" local preference value in R2 , not R1 in you r configuration.
Is it right ,Alec?
I just want to explain what I want:
R1------R2
R1 will learn server route from BR2 , eg, 192.168.1.0, 192.168.2.0,102.168.3.0, 192.168.4.0 ,as path is 112,113
I want to see a aggrated route of 192.168.0.0/22, with the as path 112 113 and local preference with blank, how can I do this ?
thanks!
----- Original Message -----
From: "Kaiser Anwar" <kaiseranwar@sbcglobal.net>
To: "Alec" <clapun@graduate.hku.hk>; "Bob Sinclair" <bsin@cox.net>; <ccielab@groupstudy.com>
Sent: Saturday, January 17, 2004 12:56 PM
Subject: Re: BGP question
> I am getting this message when i try to do path prepneding seems like it is
> not supported on summ routes.
>
> % "aspath" used as BGP attribute route-map, set as-path prepend not
> supported
>
>
>
> ----- Original Message -----
> From: "Alec" <clapun@graduate.hku.hk>
> To: "Bob Sinclair" <bsin@cox.net>; <ccielab@groupstudy.com>
> Sent: Friday, January 16, 2004 9:42 PM
> Subject: Re: BGP question
>
>
> > Bob,
> >
> > In fact I am looking for a BLANK local-preference in the bgp table while
> > AS-PATH can be retained in R2 (the originated router), not R1. Assuming
> R1
> > is the backbone router injecting the smaller prefixes.
> >
> > rgds,
> > alec
> >
> > ----- Original Message -----
> > From: Bob Sinclair
> > To: Alec ; ccielab@groupstudy.com
> > Sent: Saturday, January 17, 2004 11:29 AM
> > Subject: Re: BGP question
> >
> >
> > Alec,
> >
> > I tried the prepend in a route-map referenced by the attribute-map
> keyword,
> > and that did not work. So I kept it simple. As shown below, I was able
> to
> > prepend a locally made aggregate using normal route-map methods. Is this
> > what you are trying to do?
> >
> > !
> > router bgp 2
> > network 192.168.0.0
> > aggregate-address 192.168.0.0 255.255.254.0 summary-only
> > neighbor 172.16.7.1 remote-as 1
> > neighbor 172.16.7.1 route-map PREPEND out
> > !
> > R2#sh route-map
> > route-map PREPEND, permit, sequence 10
> > Match clauses:
> > ip address (access-lists): 1
> > Set clauses:
> > as-path prepend 2 2 2
> > Policy routing matches: 0 packets, 0 bytes
> > route-map PREPEND, permit, sequence 20
> > Match clauses:
> > Set clauses:
> > Policy routing matches: 0 packets, 0 bytes
> > !
> > R2#sh access-l
> > Standard IP access list 1
> > permit 192.168.0.0, wildcard bits 0.0.1.255 (9 matches) check=9
> > R2#
> >
> > R1#sh ip b
> > BGP table version is 38, local router ID is 1.1.1.1
> > 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
> > *> 172.16.0.0 172.16.7.2 0 0 2 ?
> > *> 172.16.1.0/24 0.0.0.0 0 32768 ?
> > *> 172.16.2.0/24 172.16.7.2 0 0 2 i
> > *> 172.16.7.0/24 172.16.7.2 0 0 2 i
> > *> 172.16.8.0/24 0.0.0.0 0 32768 ?
> > *> 172.16.14.0/24 172.16.7.2 0 0 2 i
> > *> 192.168.0.0/23 172.16.7.2 0 2 2 2 2 i
> >
> >
> >
> > Bob Sinclair
> > CCIE #10427, CISSP, MCSE
> > www.netmasterclass.net
> >
> >
> >
> > ----- Original Message -----
> > From: "Alec" <clapun@graduate.hku.hk>
> > To: "Bob Sinclair" <bsin@cox.net>; <ccielab@groupstudy.com>
> > Sent: Friday, January 16, 2004 9:48 PM
> > Subject: Re: BGP question
> >
> >
> > > Bob,
> > >
> > > I think attribute-map and route-map achieve the same result. Seems can
> > not
> > > prepend ASN to prefix ORIGINATED from itself.
> > >
> > > rgds,
> > > alec
> > >
> > > ----- Original Message -----
> > > From: "Bob Sinclair" <bsin@cox.net>
> > > To: "Alec" <clapun@graduate.hku.hk>; <ccielab@groupstudy.com>
> > > Sent: Saturday, January 17, 2004 9:41 AM
> > > Subject: Re: BGP question
> > >
> > >
> > > > Alec,
> > > >
> > > > Have you tried applying the route by using the attribute-map keyword
> on
> > > the
> > > > aggregate-address command?
> > > >
> > > >
> > > > Bob Sinclair
> > > > CCIE #10427, CISSP, MCSE
> > > > www.netmasterclass.net
> > > >
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Alec" <clapun@graduate.hku.hk>
> > > > To: <ccielab@groupstudy.com>
> > > > Sent: Friday, January 16, 2004 8:16 PM
> > > > Subject: BGP question
> > > >
> > > >
> > > > > How can I prepend AS number to an aggregate route originating from
> > > itself
> > > > ?
> > > > > I've used a route-map with prepend command but it doesn't work.
> > > > >
> > > > > thanks
> > > > > alec
> > > > >
> > > > >
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