[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [RRG] Consensus? IPv4 scaling problem must be solved directly, not by relying on migration to IPv6
- To: rrg <rrg@psg.com>, Lixia Zhang <lixia@CS.UCLA.EDU>
- Subject: Re: [RRG] Consensus? IPv4 scaling problem must be solved directly, not by relying on migration to IPv6
- From: Peter Sherbin <pesherb@yahoo.com>
- Date: Tue, 27 May 2008 12:48:24 -0700 (PDT)
- Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Received:X-Mailer:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type:Message-ID; b=Aodx5vyHaaj09gFzbOUKDX237wSKiCpvPmRwF7tVLKaDpa0BcfNEPQaUmtdiUjiV+bz/b7UU8ce6NXY11Sh4vm0g+V8nglqDzZCN3KJZUDZa2jLEdgoU/d6aDPKxIc4XHFwL/WeF4QjRAL4pweewWowplowPNuZIgXYPjMBuwcE=;
- In-reply-to: <01B2EDB4-2C43-40F9-B60D-B82FFD2F883A@CS.UCLA.EDU>
- Reply-to: pesherb@yahoo.com
> I might have used a wrong word "edge"; someone
> closer to operations might help here.
in the organization that I am familiar with "edge" or distribution router aggregates accesses from customer premise routers. Distribution routers connect upstream to core routers. If I am not mistaken core routers also interconnect peer/transit ISPs.
Thanks,
Peter
--- On Tue, 5/27/08, Lixia Zhang <lixia@CS.UCLA.EDU> wrote:
> From: Lixia Zhang <lixia@CS.UCLA.EDU>
> Subject: Re: [RRG] Consensus? IPv4 scaling problem must be solved directly, not by relying on migration to IPv6
> To: "rrg" <rrg@psg.com>
> Date: Tuesday, May 27, 2008, 9:53 AM
> On May 27, 2008, at 2:55 AM, Pekka Savola wrote:
>
> > On Tue, 27 May 2008, Lixia Zhang wrote:
> >> As I've heard from a few big operators, their
> shared issue is the
> >> scale limitation of their edge boxes --- they
> could buy a small
> >> number of core routers that can handle large
> tables, but they could
> >> not afford replacing hundreds or even up to
> thousands edge routers
> >> that have limited capacity.
> >
> > I have to wonder which edge boxes we're thinking
> of. Edges towards
> > other ISPs (peering etc.)? Edges towards customers?
> The latter in
> > some cases might be easier -- it may not be required
> to carry the
> > full routing table on each and every customer-facing
> router.
>
> I might have used a wrong word "edge"; someone
> closer to operations
> might help here. But the stories I heard are about the ISP
> routers
> that do carry the full table.
>
> Lixia
>
> --
> to unsubscribe send a message to rrg-request@psg.com with
> the
> word 'unsubscribe' in a single line as the message
> text body.
> archive: <http://psg.com/lists/rrg/> &
> ftp://psg.com/pub/lists/rrg
--
to unsubscribe send a message to rrg-request@psg.com with the
word 'unsubscribe' in a single line as the message text body.
archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg