Lossy cogent p2p experiences?

Sat Sep 2 15:23:20 UTC 2023

On 9/2/23 17:04, Masataka Ohta wrote:

> Both of you are totally wrong, because the proper thing to do
> here is to police, if *ANY*, based on total traffic without
> detecting any flow.

I don't think it's as much an issue of flow detection as it is the 
core's ability to balance the Layer 2 payload across multiple links 
effectively.

At our shop, we understand the limitations of trying to carry large 
EoMPLS flows across an IP/MPLS network that is, primarily, built to 
carry IP traffic.

While some vendors have implemented adaptive load balancing algorithms 
on decent (if not custom) silicon that can balance EoMPLS flows as well 
as they can IP flows, it is hit & miss depending on the code, hardware, 
vendor, e.t.c.

In our case, our ability to load balance EoMPLS flows as well as we do 
IP flows has improved since we moved to the PTX1000/10001 for our core 
routers. But even then, we will not sell anything above 40Gbps as an 
EoMPLS service. Once it gets there, time for EoDWDM. At least, until 
800Gbps or 1Tbps Ethernet ports become both technically viable and 
commercially feasible.

For as long as core links are based on 100Gbps and 400Gbps ports, 
optical carriage for 40Gbps and above is more sensible than EoMPLS.

Mark.