Re: [RAM] Tunneling overheads and fragmentation
Gert Doering <gert@space.net> Fri, 20 July 2007 14:04 UTC
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Date: Fri, 20 Jul 2007 16:04:33 +0200
From: Gert Doering <gert@space.net>
To: Robin Whittle <rw@firstpr.com.au>
Subject: Re: [RAM] Tunneling overheads and fragmentation
Message-ID: <20070720140433.GA69215@Space.Net>
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Hi, On Fri, Jul 20, 2007 at 12:34:27AM +1000, Robin Whittle wrote: > For instance, if all provider and transit routers happily handle > packets significantly longer than whatever hosts normally produce > (say 1500 bytes) then adding the encapsulation won't lead to any > fragmentation. Is this a reasonable assumption? No. As of today, too many links and routers still have issues handling more than 1500 bytes of IP packets (like "most FastEthernet interfaces on Cisco routers", which is still considered "high bandwidth" over here). > What about routers in end-user networks, or CE routers of providers? Even worse, due to DSL encapsulation you already end up with an IP MTU of 1492 bytes or less. Gert Doering -- NetMaster -- Total number of prefixes smaller than registry allocations: 113403 SpaceNet AG Vorstand: Sebastian v. Bomhard Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann D-80807 Muenchen HRB: 136055 (AG Muenchen) Tel: +49 (89) 32356-444 USt-IdNr.: DE813185279 _______________________________________________ RAM mailing list RAM@iab.org https://www1.ietf.org/mailman/listinfo/ram
- RE: [RAM] Tunneling overheads and fragmentation Templin, Fred L
- [RAM] Tunneling overheads and fragmentation Robin Whittle
- [RAM] Re: Tunneling overheads and fragmentation Stephane Bortzmeyer
- Re: [RAM] Re: Tunneling overheads and fragmentati… Iljitsch van Beijnum
- Re: [RAM] Re: Tunneling overheads and fragmentati… David Meyer
- Re: [RAM] Tunneling overheads and fragmentation Wassim Haddad
- Re: [RAM] Tunneling overheads and fragmentation Robin Whittle
- Re: [RAM] Tunneling overheads and fragmentation Gert Doering
- Re: [RAM] Tunneling overheads and fragmentation Robin Whittle
- Re: [RAM] Tunneling overheads and fragmentation Marshall Eubanks
- Re: [RAM] Tunneling overheads and fragmentation Robin Whittle
- Re: [RAM] Tunneling overheads and fragmentation Iljitsch van Beijnum
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Iljitsch van Beijnum
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Dino Farinacci
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Iljitsch van Beijnum
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Dino Farinacci
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Dino Farinacci
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Pekka Savola
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Gert Doering
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Gert Doering
- Re: [RRG] Re: [RAM] Tunneling overheads and fragm… Dino Farinacci