Calnex and Tellabs prove Ethernet Sync for Backhaul
December 2008
Calnex Solutions successfully demonstrated Synchronous Ethernet (Sync-E) and IEEE-1588v2 (PTP) solutions with Tellabs at the 2008 Time and Sync in Telecoms conference.
The Tellabs® 8605 Access Switch is a compact and fully managed mobile cell site node for cost-efficient delivery of 2G and 3G voice and data services with support for Ethernet backhaul and evolution to 4G.
The Calnex Paragon emulates real networks to prove that technologies such as IEEE-1588v2, Sync-E, Circuit Emulation and NTP can be deployed successfully with devices such as the Tellabs® 8605 switch.
The migration to Ethernet backhaul is a pivotal part of service providers’ plans. To reduce operational costs for 2G and 3G and move to Ethernet for LTE and 4G, operators must migrate their networks. However, service providers need assurance that synchronisation over Ethernet works before they deploy it to carry customer traffic.
If accurate synchronisation is not delivered, customers will experience degradation of services, dropped calls and failed mobile call handovers, leading to lost revenue and churn. Calnex and Tellabs conducted strenuous tests that proved this technology works and is available to operators now.
“The Calnex Paragon allows operators to prove these technologies for network deployment as you can capture profiles of real networks and use these in the test bed. The Tellabs 8605 switch has been proven to work under tough, real-network conditions.” said Calnex CEO Tommy Cook.

For most, the migration to an all-Ethernet or all-IP network will be a gradual process as network operators endeavour to maximise the lifespan of their existing TDM assets.