Just as an add-on, the other option (in the vpn case) would be to use the
as-override feature on the PE.
http://www.cisco.com/en/US/partner/docs/ios/mpls/command/reference/mp_m4.htm
l#wp1013443
regards
Roger
-----Urspr|ngliche Nachricht-----
Von: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] Im Auftrag von
Rick Mur
Gesendet: Dienstag, 24. November 2009 13:46
An: Sunil Khanna
Cc: Cisco certification
Betreff: Re: neighbor ip-address allowas-in
Try to figure out yourself, it's very logical.
When you have the following topology:
CE1-------------PE1-----------PE2---------CE2
AS100-------AS1---------AS1-------AS100
What will happen when PE2 sends a route received from CE1 to CE2? What is
the AS-path and what mechanism does BGP have by default?
On what routers would you implement that allowas-in command to make this
work?
-- Regards, Rick Mur CCIE2 #21946 (R&S / Service Provider) Sr. Support Engineer IPexpert, Inc. URL: http://www.IPexpert.com On Tue, Nov 24, 2009 at 1:31 PM, Sunil Khanna <khannasunil_at_gmail.com> wrote: > Hi All, > > I know this has been discussed earlier but please help me understand > functionality of command "neighbor ip-address allowas-in [number]" with > respect to CE<<----->>PE network. > > > -- > Regards, > Sunil > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html Blogs and organic groups at http://www.ccie.netReceived on Tue Nov 24 2009 - 14:01:39 ART
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