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Multi-As Backbones

  • From: Roger Pottier <roger_pottier@yahoo.com>
  • Date: Fri, 6 Feb 2004 14:52:17 -0800 (PST)

Hi,
 
 draft-ietf-l3vpn-rfc2547bis-01.txt specifies the multi-AS Backbone scenario.
 
10. c) Multihop EBGP redistribution of labeled VPN-IPv4 routes between
         source and destination ASes, with EBGP redistribution of
         labeled IPv4 routes from AS to neighboring AS.
 
The ASBR  maintains labeled IPv4  /32 routes to the PE routers within its AS and uses EBGP to  distribute the labeled routes to other ASes. 
Between, two ASs, it uses BGP to distribute the labels, but in that case, how is the labeled path within the AS Maintained. Is it using BGP itself. Or is  LDP/RSVP used to
distribute the labels within the same AS?
 
Thanks,
Roger
 


 

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