Re: [GROW] I-D Action:draft-ietf-grow-va-01.txt

[Paul Francis <francis at mpi-sws.org>]

Hi Gang,

The only difference between this and the -00 version is that we made it 
clear that the suppression must take place between the FIB and the Routing 
Table.  Previous version it was ok to do suppression between the RIB and 
the Routing Table.

The need for the change comes from the fact that PIM relies on the 
contents of the Routing Table for its operation, so it cannot be changed.

PF




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Date:
10/25/2009 03:16 PM
Subject:
[GROW] I-D Action:draft-ietf-grow-va-01.txt
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A New Internet-Draft is available from the on-line Internet-Drafts 
directories.
This draft is a work item of the Global Routing Operations Working Group 
of the IETF.


                 Title           : FIB Suppression with Virtual 
Aggregation
                 Author(s)       : P. Francis, et al.
                 Filename        : draft-ietf-grow-va-01.txt
                 Pages           : 27
                 Date            : 2009-10-25

The continued growth in the Default Free Routing Table (DFRT)
stresses the global routing system in a number of ways.  One of the
most costly stresses is FIB size: ISPs often must upgrade router
hardware simply because the FIB has run out of space, and router
vendors must design routers that have adequate FIB.  FIB suppression
is an approach to relieving stress on the FIB by NOT loading selected
RIB entries into the FIB.  Virtual Aggregation (VA) allows ISPs to
shrink the FIBs of any and all routers, easily by an order of
magnitude with negligible increase in path length and load.  FIB
suppression deployed autonomously by an ISP (cooperation between ISPs
is not required), and can co-exist with legacy routers in the ISP.

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[attachment "draft-ietf-grow-va-01.txt" deleted by Paul 
Francis/INS/MPII/DE]