MEF GEN14 update It’s been more than a year since I wrote my last blog post. I was busy with other work (office, teaching, speaking, reading, traveling, advising, consulting, family…. ) and couldn’t really find a time to write something, though I had lot of things to share. However, I kept on my micro-blogging activities on twitter as usual. This post is actually ...

In early days when most of us were not born, operators built TDM (circuit) networks and offered data (circuit) services to customers.Because customers wanted data(packet) services, operators built IP/Ethernet (packet) networks.Now customers ask for circuit like services again.But, operators can’t build circuit networks again.Operators have no choice than allowing circuit like service flow in their packet networks.By Anuradha Udunuwara ...

It’s been 3 weeks since I faced that accident. An accident changed my entire life. I died, almost, on 4th March 2013. The good news is I’m alive and recovering quickly. After spending 2 days in the hospital, I was discharged and asked to rest at home for 4 weeks. That’s a full month. I have never stayed (to ...

IntroductionAssume a Communication Service Provider (CSP)who does not have an aggregation network between the access and core. The CSP wants to use Carrier Ethernet (CE) technology to build the aggregation network. The CSP, most of the CSPs, intends to deliver/transport/aggregate the following services/traffic across the Carrier Ethernet Network (CEN) in an End-to-End (E2E) Internet protocol (IP) oriented architecture supporting ...

First things first, I would suggest the Communication Service Provider (CSP) should critically analyze the book value of the existing legacy system, spare capacity availability, vendor support availability, Next Generation Network (NGN)/Ethernet transport feature availability, upgrade costs and operational costs like space and power. As long as the existing system addresses the requirement cost effectively in short term and mid ...

I think the operators/governments, both developed and developing, around the globe need to go back to the fundamentals and 1st principals in deploying broadband/Next Generation Access (NGA)networks. For that matter, most governments need to go back to fundamentals/1st principles in all that they do.They need to think on the "purpose" of doing what they are doing/planning to do. If you ...

I always had this question in my mind; wired or wireless to reach the rural. All the fixed line Communication Service Providers (CSPs) in both developing and developed countries have started their networks form the urban areas (ex: Main Switching Unit (MSU) in Public Switched Telephone Network (PSTN)) and move to sub-urban (ex: Remote Switching Unit (RSU)) and then to ...

Metro Ethernet Forum (MEF) has defined 4 types of service, namely;E-LINE (Ethernet Line) - Point to PointE-LAN (Ethernet Local Area Network (LAN)) - Multipoint to MultipointE-TREE (Ethernet Tree) - Point to MultipointE-Access (Ethernet Access) The lack of E-TREE implementations/support on Communication Service Providers (CSP) networks today make the customers buy Virtual Private LAN Service (VPLS) (Multi Protocol Label Switching (MPLS) ...

When we say Optical Transport Networks (OTN), it could mean two things;OTN wrapper capability OTN switching capabilityTo implement an OTN, there are many technological options available. From least cost (in general) to highest, the options are as follows;Note: All options need to support OTN wrapperFixed Optical Add Drop Multiplexers (FOADM)Re-configurable OADM (ROADM)Tunable ROADM (TROADM) (Wave-length Selective Switching (WSS)): supports Color-Less ...

IntroductionCommunication Service Provider (CSP) networks can be divided into many categories. If divided based on the media used for the transport, wired and wireless are the widely known. Both types can be again sub divided based on the functional hierarchy; core, aggregation and access. If wired networks are concerned, optical fiber is used in almost all the core and aggregation ...

In the Communication Service Provider (CSP) industry today, there are many confusions with terms. One such example is Metro Ethernet (ME) and Carrier Ethernet (CE). Many people have asked me the difference between the two. Therefore, I just though of writing this small blog, just to clarify the doubts.ME was 1stto come. Hence the Metro Ethernet Forum (MEF). Carrier Ethernet ...

The Telcos (more correctly, Communication Service Providers (CSPs)) face a severe competition and a pressure today to keep their noses above the water. They can no more sell voice and bandwidth and make that a viable business proposition. Both voice and bandwidth has become a given. Most of the customers granted that as given. Recently the United Nations (UN) has ...

Pinnawala Elephant Orphanage, Sri Lanka These photos were taken yesterday (16.8.2009) morning at Pinnawala Elephant Orphanage, Sri Lanka.The photos show how the giants having their morning meal and then going to the nearby river (Ma Oya) for a bath.The elephant in the last photo is said to be injured from a land mine before brought into the orphanage.

Kandy perehera These pics were captured in the 2nd Randoli Perehera on 2nd August 2009 in Kandy. There was a large crowd. All the seats (a seat here is an any possible place you can sit) were taken by 5pm and the Perehera started at 9.40 pm.

Camouflage butterfly How many of you have seen this creature before? I saw it for the 1st time on 21st of December 2008. It was in my home garden (in Kandy, Sri Lanka). It was there for couple of days in one of our flower trees and we could not see it after 2-3 days. Luckily I could take few picture with my 3.2 mega pixel camera.You can see some more photos in my flickr photostream.

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