Date: Sat, 01 Jun 2002 03:05:22 +0200 From: Andre Oppermann <oppermann@pipeline.ch> To: Richard A Steenbergen <ras@e-gerbil.net> Cc: "Louis A. Mamakos" <louie@TransSys.COM>, Attila Nagy <bra@fsn.hu>, Luigi Iannone <Luigi.Iannone@lip6.fr>, freebsd-net@FreeBSD.ORG Subject: Re: MPLS Message-ID: <3CF81DD2.8D76F8DE@pipeline.ch> References: <200205291413.g4TEDLRG075458@whizzo.transsys.com> <3CF4E483.2510639@pipeline.ch> <200205291522.g4TFMdRG076033@whizzo.transsys.com> <3CF4FCFC.3D760508@pipeline.ch> <20020529180204.GK33611@overlord.e-gerbil.net> <3CF51E7C.E9A47960@pipeline.ch> <20020529233411.GO33611@overlord.e-gerbil.net> <3CF5F4ED.369BCE83@pipeline.ch> <20020530150612.GP33611@overlord.e-gerbil.net> <3CF6436D.ADA51D7F@pipeline.ch> <20020531225642.GD385@overlord.e-gerbil.net>
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Richard A Steenbergen wrote: > > On Thu, May 30, 2002 at 05:21:17PM +0200, Andre Oppermann wrote: > > > This is a non sequitur. All routes will be available through the kernel > > > RIB, but for exact matches only. When is a longest prefix match needed > > > there? > > > > When the routing daemon instructs us to remove the prefix 10.0.0.0/8 > > when we also have 10.0.0.0/9 and 10.128.0.0/9. > > That is not a longest prefix match, this is an exact match. Ah, well. You're right. > > Where? Do you mean rt_metrics? > > Yes. I'm axing that right now and will provide a tcp_hostcache that will assume that role (tcp is the only consumer of rt_metrics, except for rmx_mtu and rmx_pksent). By moving this every node/leaf in the routing table shrinks by 48 bytes. On a default free view of the Internet this gives us a whopping 5.5 Mbytes in kernel memory savings (110k routes). -- Andre To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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