A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : Constrained Route Distribution for BGP based Virtual Private Networks(VPNs)
Author(s) : Z. Li, J. Dong, H. Ni, M. Chen, G. Liu
Filename : draft-dong-idr-vpn-route-constrain-02.txt
Pages : 21
Date : 2010-9-27
There are some problems with current RT-Constrain mechanism defined
in RFC 4684. Firstly, the IPv6 address specific Route Target defined
in [RFC5701] cannot be accommodated in current RT membership NLRI.
Secondly, the distribution of RT-Constrain information cannot build
correct VPN distribution graph when hierarchical route reflection (RR)
is used. Thirdly, current RT-Constrain mechanism is used for
filtering of all kinds of VPN services and can result in imprecise
VPN route distribution when multiple VPN services are deployed in the
network.
This document describes the above problems in detail and proposes
solutions for these problems. A generalized RT-Constrain mechanism is
defined to accommodate the IPv6 address specific Route Target and to
precisely control propagation of different kinds of VPN routing
information. The proposed solution avoids unnecessary advertising and
receiving of VPN routes when multiple VPN services are deployed. This
document also proposes modifications of advertisement rules of RT-
Constrain information to ensure the integrity of VPN distribution
graph.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-dong-idr-vpn-route-constrain-02.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-dong-idr-vpn-route-constrain-02.txt>
-
_______________________________________________
I-D-Announce mailing list
I-D-Announce@ietf.org
https://www.ietf.org/mailman/listinfo/i-d-announce
Internet-Draft directories: http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
