circuit emulation

Operators are struggling to manage their aging SONET/SDH infrastructure, much of which has exceeded its intended life span and has become a serious operational strain. For years, operators had few architectural options for network modernization. Fortunately, circuit emulation (CEM) has emerged as a…

Verizon has achieved a significant technical milestone by implementing an innovative approach developed with Cisco toward increasing network efficiency on its next-generation transport network. This unique solution enables the continued growth of Ethernet services while improving the reliability of…

Written By Christian Schmutzer, Principal Engineer at Cisco The idea behind Cisco’s Transport Network Modernization solution is simple: allow a single, packet-oriented network to support both connectionless and connection-oriented services concurrently. A number of technology innovations were requi…

Some of our recent blog posts, A Requirements Checklist for the Next Generation Transport Network and The Next-Generation Transport Network: Solution Options discussed the business requirements you should consider before selecting a modernization solution and the technology options currently availab…

There are a number of options for modernizing your transport network, including native TDM switching over the optical transport network (OTN), a complete overlay network with routers and DWDM, and finally migrating to packet optical using circuit emulation (CEM). Each option has value, but the value…

By: Alison Izard, Marketing Manager, Cisco In our recently published E-Book, A Roadmap for Transport Network Modernization, we use a step-by-step checklist to evaluate what should be considered before embarking on a network modernization project. Our checklist seeks to address a core set of moderni…