Re: Layer 2 Transport

Thu, 23 Jan 2025 21:17:31 -0800

Wave circuits

On Jan 23, 2025, at 13:54, Jeff Behrns via NANOG <[email protected]> wrote:


Identify L2 control protocols which will require transparent tunneling end to end before making a decision on underlay tech.  Beware of multiple vendor handoffs / NNIs under the hood of any solution, but especially an "oMPLS" solution.

From: NANOG <[email protected]> on behalf of Aaron1 <[email protected]>
Sent: Thursday, January 23, 2025 9:32:37 AM
To: Mike Hammett <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Layer 2 Transport

We use mainly mpls/p2p pw so much for wholesale/business Ethernet, CBH, and various other purposes.  Still using mpls/vpls occasionally… oob mgmt backhaul.  For DC interconnect, I use evpn/mpls, since I have an mpls network.  We are an SP, so mpls has been the basis for our network-based-L2/L3 VPN’s for 10 years or so.

Aaron

On Jan 23, 2025, at 8:47 AM, Mike Hammett <[email protected]> wrote:


What technologies are predominately in use today to transport layer 2 circuits?

MPLS\VPLS used to be all the rage.
eVPN\VXLAN seems to be popular in the datacenter space.
Carrier Ethernet?


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