Hi Jeffrey,
one potential issue with this approach is the possible suboptimal
traffic path if the L3 p2p topology created as you described do not
match the L2 forwarding topology. With large L2 domains it may be be
nontrivial to assign L3 metric correctly so that the L2/L3 forwarding match.
One possible method to address the problem in hand is to create p2p
connections between the routers via the L2 domain, using dedicated
VLANs. This way the L2 forwarding is forced to match the L3 p2p topology.
thanks,
Peter
On 22.11.2010 17:36, Jeffrey (Zhaohui) Zhang wrote:
Hi,
I presented the draft
http://www.ietf.org/draft-nsheth-ospf-hybrid-bcast-and-p2mp-01.txt in Beijing
(slides http://www.ietf.org/proceedings/79/slides/ospf-9.ppt) and it was
deferred to the mailing list on whether the problem is worth the working group
effort (some who reviewed the draft agreed that the proposed solution is
reasonable for the problem).
I'd like to request folks to review the draft/slides and voice your opinion. We
developed the solution for a real network situation and would like to see that
it gets consensus and standardized so that more operators/vendors can benefit
from this.
Thanks.
Jeffrey
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