[AusNOG] NBN Co Layer 2 vs. Layer 3 Services

[Mark Newton]

On 22/04/2010, at 8:32 AM, Skeeve Stevens wrote:

At the moment there is a lot of talk of NBN and whether they are going to deliver Layer 2 or Layer 3 services.

If the NBN runs layer 3, then the choice of layer-3 protocols it's capable
of carrying will be limited to whatever protocols NBNCo chooses to deploy.

If it runs layer-2, then gluing NBNCo services together to create Ethernet,
IPv4, IPv6, MPLS, L2TP, etc retail offerings would be reasonably trivial, and as more
protocols emerge in the future they'd be supportable without NBNCo needing
to do anything.  I believe the politician-friendly word for that outcome is
"future-proof."

It's difficult to see what value NBNCo would be adding by getting involved in
Layer-3.

  - mark


--
Mark Newton                               Email:  newton at internode.com.au<mailto:newton at internode.com.au> (W)
Network Engineer                          Email:  newton at atdot.dotat.org<mailto:newton at atdot.dotat.org>  (H)
Internode Pty Ltd                         Desk:   +61-8-82282999
"Network Man" - Anagram of "Mark Newton"  Mobile: +61-416-202-223





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