RAD Plays Ethernet Test Role

RAD's EtherAccess and cellular backhaul gear used in EANTC's public carrier Ethernet interoperability test

September 26, 2007

3 Min Read

GENEVA -- RAD Data Communications and 23other leading telecommunications industry vendors are participating in thelargest and most diverse public Carrier Ethernet multi-vendorinteroperability test ever staged. Organized by the European AdvancedNetworking Test Center (EANTC), the test is being conducted at the CarrierEthernet World Congress 2007, which is being held in Geneva.

The live test with more than 65 devices is geared towards network operatorsproviding Carrier Ethernet services. It is targeted at verifying the currentinteroperability status of a wide range of implementations as well asprovisioning and fault management solutions.

"We are proud to note that RAD's EtherAccessR line of Ethernet accessdevices have played a major role in this tremendous public testing process,"stated Yacov Cazes, Director of Ethernet Access Solutions at RAD DataCommunications. "Featuring 802.1ag standard Ethernet OAM (Operations,Administration and Management), RAD's EtherAccess products support therollout of Ethernet Virtual Private Line (EVPL) and Ethernet Private Line(EPL), as well as E-Line and E-LAN services, over fiber, DSL and bondedcopper circuits," Cazes noted. "By introducing standard Ethernet OAM in theaccess, RAD has brought end-to-end service control to a multi-vendor,multi-access technology environment."

Ethernet- over PDH/SDH, SHDSL and Fiber

RAD is demonstrating an Ethernet-over-PDH/SDH service based on GFP, VCAT andLCAS using its Egate-100 aggregator and RICi-16 customer premises equipment(CPE). Each bonded group was mapped to a VLAN into the metro network. Inaddition, RAD is demonstrating MEF-9 and MEF-14 compliant Ethernet accessover SHDSL (2Base2L) using eight bonded wires employing Ethernet in theFirst Mile (EFM) bonding.

The company's ETX product line of fiber Ethernet network termination units(E-NTUs) are demonstrating the use of connection fault management (CFM) onE-NTUs to determine path failure and allow the device to switch to analternative path. TwoETX-202 units exchanged CFM loopback messages across the primary path. Whena failure occurred, the units shut down the primary path and switchedtraffic to the backup path.

TDM and ATM Service Emulation for Cellular Backhauling Applications

RAD also demonstrated TDM and ATM service emulation over PBT and T-MPLSmetro clouds and across the core. The emulation used E1 TDM and E1 ATMtraffic, as is typically seen in cellular 2G/3G base stations. Both E1 TDMand ATM services were groomed onto RAD's ACE-3200 cell site gateway,tunneled through the metro clouds and terminated on RAD's ACE-3400 RNC/BSCsite gateway. Timing synchronization was successfully maintained to preventclocking issues in the end-to-end TDM and ATM services. RAD's ACE devicessupport aggregation of multiple STM-1/OC-3 links over Gigabit Ethernet usingpseudowire technology lines to ensure the most economical allocation ofbackhauling resources and the delivery of multiple 3G services.

IEEE, ITU-T and MEF Specifications for Carrier Ethernet Services

In preparation for the event, more than 70 engineers from participatingcompanies evaluated the interoperability of their solutions in detail in aclosed-door, ten-day long intense hot-staging at EANTC's lab in Berlin,Germany. Preparations for the test began in April 2007 and covered thelatest IEEE, ITU-T and MEF specifications for Carrier Ethernet services.

Apart from RAD, the other vendors that participated in the interoperabilitytesting were Alcatel-Lucent, ANDA Networks, Ceragon Networks, Ciena, CiscoSystems, Extreme Networks, Gridpoint Systems, Hammerhead Systems, HarrisStratex Networks, Huawei Technologies, Ixia, Juniper Networks, MRVCommunications, Nokia Siemens Networks, Nortel, Shenick Network Systems,Soapstone Networks, Spirent Communications, Telco Systems, Tellabs, TPACK,World Wide Packets, and ZTE.

RAD Data Communications Ltd.

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