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Re: mpls queries

  • From: Mikael Abrahamsson <swmike@swm.pp.se>
  • Date: Thu, 17 Feb 2005 08:25:03 +0100 (CET)
  • Organization: People's Front Against WWW
  • Resent-Date: Thu, 17 Feb 2005 02:50:18 -0500
  • X-Scanned-By: MIMEDefang 2.45

On Thu, 17 Feb 2005, Vidyasagar wrote:

> 6) what is future network? is it IPv6/MPLS/POS ?

IPv4/IPv6 (over MPLS) over POS/Ethernet.

Ethernet is priced much lower than POS, but POS has the advantage of lower
overhead (no ethernet header, makes substantial difference on small packet
sizes).

I don't see IPv4/6 directly over the L2 media going away soon, MPLS 
doesn't add value in a lot of the scenarios.

I would say ATM is dead, ATM was dead and was only revived due to DSL and 
hopefully future DSL will be able to do ethernet directly on the DSL layer 
without the ATM overhead (which is VERY substantial when doing IPv4 over 
Ethernet over ATM over DSL, especially if you also throw in PPPoE/A there 
as well).
 
-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

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