nanog mailing list archives

Re: EPC backhaul networks


From: Cameron Byrne <cb.list6 () gmail com>
Date: Sun, 30 Jan 2011 09:52:43 -0800

On Jan 30, 2011 9:03 AM, "Glen Kent" <glen.kent () gmail com> wrote:

Hi,

I would like to understand why there is a preference for L3 VPNs over
L2 VPNs for the EPC backhaul networks? We can use both layer 2 and
layer 3 VPNs for communication between the eNodeB and the MME or S-GW,
so why is it that most providers prefer L3 over L2.


There are just more companies offering L2 metroE than L3 in the backhaul
space.  I have pushed for L3 but very few offer the speeds and reach
required

Cb
Glen



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