Re: Does MPLS really live up to all its hype? [7:6151]

[Peter I. Slow, CCNP Voice Specialist]

CEF is supposed to be a FIX!?


Peter Slow, CCNP Voice Specialist
Network Engineer
Planetary Networks
535 West 34th Street
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----- Original Message -----
From: "David Chandler" 
To: 
Sent: Tuesday, May 29, 2001 8:06 AM
Subject: Re: Does MPLS really live up to all its hype? [7:6151]


> No Way!!!
>
> The Marketing people NEVER exagerate.....    :->
>
> MPLS does seem like a solution to a problem that was fixed some time
> ago...ie: fast-switching, CEF etc...
>
>
> DaveC
>
> NRF wrote:
> >
> > Mr. Berkowitz, please read this post and respond.
> >
> > Okay, I am going to run the risk of starting a religious war here.  But
I
> do
> > have to ask, is MPLS really as great as people say?
> >
> > I know many people, on newsgroups and in real-life, champion MPLS as the
> > perfect answer to the problems of the core Internet.  Faster IP
forwarding,
> > traffic engineering, VPN capabilities, etc., it seems to have some
powerful
> > features.    No doubt, this attitude is sparked by Juniper, which is
using
> > MPLS as a strategic weapon against Cisco, and since Juniper keeps eating
> > Cisco's lunch, it stands to reason that MPLS has something to do with
it.
> > In fact, many network engineers treat MPLS as nothing less than the holy
> > grail.
> >
> > But I wonder if the hype has begun to outstrip reality.
> >
> > For example, as a response to the LightReading test, Bill St. Arnaud of
the
> > Canadian carrier Canarie states "The MPLS [multiprotocol label
switching]
> > throughput results confirmed our suspicions that MPLS does not buy you
much
> > except a big management headache. True, the throughput is higher, but
not
> > significantly higher than IP forwarding"
> >  http://www.lightreading.com/document.asp?site=testing&doc_id=3909
> >
> > And even the idea of higher throughput has been questioned by the mother
of
> > all networking, Radia Perlman:
> > " Originally [MPLS] was designed to make it possible to build fast
routers,
> > but then, using techniques such as [trie searches, parallelism, K-ary
> > searches] people built routers fast enough on native IP packets.  So now
> > MPLS is thought to be mostly a technique for classifying the type of
packet
> > for quality of service or for assigning routes for traffic
engineering..."
> > (Interconnections, 2nd Ed., p. 347-348).  And I think we would all agree
> > that anything Ms. Perlman says must be given serious weight.
> >
> > So I must ask, does MPLS really live up to all the hype?  Is it really
the
> > greatest thing since sliced bread?  How much of MPLS really is an
> > improvement on today's network, and how much of it is just a bunch of
> > (probably Juniper) marketing bullshi*?  Has any company ever worked for
a
> > company that evaluated MPLS and then decided not to use it, and if so,
what
> > were the reasons?
> >
> > Thanx for all the non-flame responses
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
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