Posts about Carrier Ethernet

Who Will Benefit from NFV and SDN?

Cross fertilization creates innovation. As technologies mature and are successfully applied in one domain, there is frequently potential for using those technologies favorably in other markets as well. However, native technologies in one market might be foreign technologies in a different market. Assimilation is a complex process and outcome is difficult to predict.

IP and Ethernet were initially developed for enterprise networks. As those technologies promised significant simplification with operator networks, the cross fertilization journey started. Today we can conclude that most of the expected savings and efficiency improvements have been achieved. However, some deviances need to be noted. Read the full post

NFV – a New Star or Halley’s Comet?

Lessons Learned

Like Sisyphus, who never did manage to roll the huge bolder to the top of the hill, we frequently push for promising new technologies and while we enthusiastically engage, we need to recognize that other technologies start compromising our effort. Examples? Think about all the brilliant brain power that went into ATM! It’s specification and development of respective products kept half a generation of data experts busy. Today, it has almost disappeared with some remaining legacy installations creating headaches for the operational staff.

Did Sisyphus Communicaticus identify with Network Function Virtualization (NFV) a new technology that needs to be pushed to the top? Will he make it or will we talk about the useless attempt sometime in the future? Read the full post

Ulrich Kohn

Ulrich Kohn
March 27, 2014

Is Fronthaul the Future of Mobile Backhaul Networks?

Since the early ‘70s, the role of public mobile communication has changed from voice applications for privileged individuals in business and administrations to a ubiquitous service with significant relevance in everybody’s social and business life. Such a major transition was made possible by a sequence of innovations and the introduction of new technologies as specified by the 2G, 3G, LTE and LTE-Advanced releases.

However, those technology innovations come with a hefty price tag for the operators as they create a continuous need to upgrade networks, align architectures and introduce new technologies. Read the full post

Ulrich Kohn

Ulrich Kohn
June 28, 2013

Carrier Ethernet 2.0 – What’s Next?

There are some interesting things happening at MEF these days. MEF is the industry forum where carriers and vendors come together to define common ground in how best to offer Carrier Ethernet services. Over the past few years MEF have been working on standards to make Carrier Ethernet services more interconnected, manageable and differentiated for specific application. This all comes together under “Carrier Ethernet 2.0”.

Carrier Ethernet 2.0 brings together a set of capabilities which enable operators to collaborate by interconnecting their services, endorsing the Ethernet wholesale services and Mobile Backhaul models. It aims to move operators forwards from plain old Carrier Ethernet to an interconnected world of multiple providers cooperating and working together to deliver scalable, dependable CE services with strict SLAs. Read the full post

Actually, Timing is Everything

The shift from voice to data-centric mobile networks has resulted in a move from traditional TDM services to a wide-scale adoption of Carrier Ethernet in mobile backhaul. Without any legacy TDM-links, however, base stations risk being isolated from traditional synchronization references. As mobile operators increasingly deploy 4G radio access technologies and depend on accurate delivery of synchronization, they are now seeking advanced solutions that not only accurately deliver the required timing information over packet networks but also provide assurance regarding its availability. Read the full post

Michael Ritter

Michael Ritter
April 19, 2012