[103512] in North American Network Operators' Group
RE: L3VPN VPNv4 NLRI - Route Reflector Scaling
daemon@ATHENA.MIT.EDU (David Freedman)
Fri Apr 4 05:55:20 2008
Date: Fri, 4 Apr 2008 10:53:04 +0100
From: "David Freedman" <david.freedman@uk.clara.net>
To: <mtinka@globaltransit.net>
Cc: <nanog@merit.edu>
Errors-To: owner-nanog@merit.edu
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>On Wednesday 02 April 2008, David Freedman wrote:
> We have dedicated VPNv4 route reflectors, they work well
> for us.
>An inevitable end as the number of routes grows.
In our case we use the cisco "rr-group" directive=20
(http://www.cisco.com/en/US/docs/ios/12_3/iproute/command/reference/ip2_a=
1g.html#wp1040902)=20
to limit RR clusters to the prefixes we actually want them to reflect, =
filtered by extcommunity.
The downside to this of course is that the RRs spend time discarding =
prefixes when update time comes around for the PEs.
Dave.
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<P><FONT SIZE=3D2>>On Wednesday 02 April 2008, David Freedman =
wrote:<BR>
> We have dedicated VPNv4 route reflectors, they work well<BR>
> for us.<BR>
>An inevitable end as the number of routes grows.<BR>
<BR>
In our case we use the cisco "rr-group" directive<BR>
(<A =
HREF=3D"http://www.cisco.com/en/US/docs/ios/12_3/iproute/command/referenc=
e/ip2_a1g.html#wp1040902">http://www.cisco.com/en/US/docs/ios/12_3/iprout=
e/command/reference/ip2_a1g.html#wp1040902</A>)<BR>
to limit RR clusters to the prefixes we actually want them to reflect, =
filtered by extcommunity.<BR>
<BR>
The downside to this of course is that the RRs spend time discarding =
prefixes when update time comes around for the PEs.<BR>
<BR>
Dave.</FONT>
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