Essentials of ASON GMPLS
A presentation I created a while ago on basics of ASON GMPLS
Need for OSNR Testers for Pol Mux Modulations
OSNR ( Optical Signal to Noise Ratio) is a critical and important parameter in high speed DWDM links. If OSNR is not good it will seriously affect the distance reachability in DWDM systems before regeneration is required. OSNR testing is typically done with OSA (Optical Spectrum Analyzer). There are standard test sets available to test […]
Soft Decision FEC ( SD FEC) versus Hard Decision FEC
As data rates increase beyond 10G, the requirements for OSNR become stringent. This is because the advanced modulation techniques used at higher bit rates require higher OSNR performance. Low OSNR is directly related to poor BER performance in DWDM networks. FEC or Forward error connection is a method used to achieve coding gain for higher […]
Optical ASON or Electrical ASON!
The debate still lingers on. When it comes to protection and re-routing on High speed links, what is the benefit of using Optical ASON versus Electrical ASON. The Optical ASON relates to lambda switching ( Also called WSON-Wavelength Switched Optical Network). This necessitates the need of using at minimum Multi degree and directionless functionality. Using colorless […]
TCO of MPLS-TP versus IP/MPLS
ACG Research has done an interesting TCO of MPLS-TP versus IP/MPLS showing there is a huge reduction of Total Cost of Ownership (TCO) in MPLS-TP versus IP/MPLS. The analysis was done in two environments: Native Packet transport on MPLS-TP versus IP/MPLS and second one using TDM/Packet mix on MPLS-TP versus Circuit emulation on IP/MPLS. The platform used for MPLS-TP […]
Cloud drives Carrier Ethernet !
Cloud is driving the Carrier Ethernet evolution. The MEF is serious about the evolution of Carrier Ethernet to meet the new demands of Cloud. The first and foremost would be to understand the elastic and dynamic demands of Cloud which are pretty new to Carrier Ethernet scheme of things. MEF is trying to see how […]
FAQ about Software-defined networking (SDN)?
What is SDN? Software-defined networking (SDN) is an approach to networking in which control is separated from hardware ( control decoupled from forwarding plane) and given to a software application called a controller. What are the issues with today’s networks? Networks are static: Today’s networks are static; e.g introducing new switches or moving any network […]
How is MPLS-TP different from MPLS?
Given the attention MPLS-TP has received in the industry, it is worthwhile to discuss how this technology is different from MPLS. So here is a listing of the differences between the two. 1. MANAGEMENT PLANE SETUP : LSPs in MPLS-TP can be setup without the use of control plane purely through the management plane. Quite […]