A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Connecting Disparate TRILL-based Data Center/PBB/Campus sites using BGP
Author(s) : Bhargav Bhikkaji
Balaji Venkat Venkataswami
Ramasubramani Mahadevan
Shivakumar Sundaram
Narayana Perumal Swamy
Filename : draft-balaji-l2vpn-trill-over-ip-multi-level-01.txt
Pages : 37
Date : 2012-08-03
Abstract:
There is a need to connect (a) TRILL based data centers or (b) TRILL
based networks which provide Provider Backbone like functionalities
or (c) Campus TRILL based networks over the WAN using one or more
ISPs that provide regular IP+GRE or IP+MPLS transport. A few
solutions have been proposed as in [1] in the recent past that have
not looked at the PB-like functionality. These solutions have not
dealt with the details as to how these services could be provided
such that multiple TRILL sites can be inter-connected with issues
like nick-name collisons for unicast and multicast being taken care
of. It has been found that with extensions to BGP the problem
statement which we will define below can be handled. Both control
plane and data plane operations can be driven into the solution to
make it seamlessly look at the entire set of TRILL sites as a single
entity which then can be viewed as one single Layer 2 cloud. MAC
moves across TRILL sites and within TRILL sites can be realized. This
document / proposal envisions the use of BGP-MAC-VPN vrfs both at the
IP cloud PE devices and at the peripheral PEs within a TRILL site
providing Provider Backbone like functionality. We deal in depth with
the control plane and data plane particulars for unicast and
multicast with nick-name election being taken care of as part of the
solution.
In this version of the draft, we discuss how hierarchical MAC
addresses can be doled out to the end stations thus reducing the size
of the BGP-MAC-VPN VRFs in the IP+GRE or IP+MPLS edge devices. We
also discuss how the MAC-Moves which involve changing the IP to MAC
address associations where the IP addresses remain constant when VMs
ot physical servers (without VMs) are removed from one part of the
network and moved to another even between Trill Data Center sites.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-balaji-l2vpn-trill-over-ip-multi-level
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-balaji-l2vpn-trill-over-ip-multi-level-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-balaji-l2vpn-trill-over-ip-multi-level-01
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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