[18846] in North American Network Operators' Group
Re: The Cidr Report
daemon@ATHENA.MIT.EDU (Sean M. Doran)
Wed Aug 19 07:50:54 1998
From: "Sean M. Doran" <smd@clock.org>
To: sherk@UU.NET, smd@clock.org
Cc: alex@nac.net, apops@apnic.net, eof-list@ripe.net, nanog@merit.edu,
routing-wg@ripe.net, tbates@cisco.com, tli@juniper.net
Date: Wed, 19 Aug 1998 04:19:17 -0700
| > B/ When we can easily do:
| >
| > "router bgp N
| > proxy-aggregate route-map Lazy-Types
|
| I may be misunderstanding, but does this (proposed) config statement
| automaticly suppress (aggregate) any prefixes that are exactly the
| same as another prefix except in the length? For example given
|
| 128.8.0.0/16
| 128.8.0.0/24
| 128.8.1.0/24
|
| the last two would not be propogated? That would be cool!
Right, essentially. This is particularly easy if all the
attributes are the same, notably the AS_Path.
In IOS there is already a pretty good set of tools to choose what
one proxy-aggregates -- and how -- that were developed several
years ago; a tool to choose when to apply a set of these would also
be useful.
One policy that I think would be useful would be: "Does the origin
AS announce more than N prefixes? If so, aggregate/drop more specifics
as follows..."
Sean.
