The MEF launched Carrier Ethernet (CE) 2.0 earlier this year with much fanfare. Thousands watched the webinar and rushed to read related articles to understand this new generation of Ethernet. After digesting said information, many stood scratching their heads, still wondering; what is CE 2.0 and how does is simplify things? I’m going to try to tackle those questions in a fewer than 400 words. It’s a tall order.
Let’s start with the building blocks. CE 2.0 didn’t start from a blank piece of paper. It’s more analogous to an author telling a story by referencing chapters and definitions from various other books. It takes bits of previously defined MEF specs (6, 13, 23, 30, and 33) and organizes them under a new umbrella.
Now to the headlines. CE 2.0 came with three main descriptors 1) multiple classes of service 2) interconnected and 3) managed.
- Multi-CoS: CE 2.0 defines three classes of services and requires that the Operator list values for eight performance criteria for each class. One-way Frame Delay, Inter Frame Delay Variation, and One-way Frame Loss Ratio are just three of the eight objectives. Not Specified (N/S) is an acceptable value.
- Interconnected: E-NNIs now have a new service associated with them, “E-Access”, referring to the end user connectivity. E-Access is a portion of the end-to-end service. E-Access has an MTU of 1,522 bytes or greater and transports traffic unchanged. The E-NNI side of E-Access has an S-tag and the UNI side of E-Access does not have an S-tag.
- Managed: Defines an approach for Service Providers and Subscribers to perform an end-to-end continuity check.
Oversimplified? Yes. But it’s an accurate summation. The MEF is hard at work as I type developing a certification program that will be available soon.
How does it simplify things? There are mixed reviews. As a Product Manager, I still need to ask hundreds of questions of an Operator to fully understand how their Ethernet service works. I will also still have to answer hundreds of questions for any Service Provider evaluating XO’s Ethernet services.
The market will determine the value of CE 2.0 and its forthcoming certification.
I’d like your opinion.
Free White Paper:
When considering a migration to MPLS VPN, there are several key considerations that can significantly impact the process of planning, implementing and managing the network. This white paper explores those considerations and discusses how they can be addressed.