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August 18, 2004
Virtual Private LAN service
As you know Ethernet is simple,flexible and scaleable bandwith also it has been revolition in MetroEthernet.Virtual Private LAN service (VPLS) allows service providers to deliver VPN service base on ethernet and it's one of the most inovation of providing Ethernet/MPLS VPN.
it uses Martini encapsulation standard and empowers service providers Ethernet networks with scalability and availability. Without VPLS, the scalability of Ethernet networks is limited to the number of unique identifiers or VLAN IDs used to provide services, and the availability of Ethernet networks is limited by the poor resiliency characteristics of mechanisms such as Spanning Tree Protocol.Some limitation such as QinQ solves and VPLS networks can support over a million unique identifiers.
VPLS is based on an Internet Engineering Task Force (IETF) draft called Lasserre-V. Kompella, written by Marc Lasserre of Riverstone Networks Inc. and Vach Kompella of TiMetra Networks, now owned by Alcatel. VPLS is expected to be a fully ratified standard by the end of this year, but several service providers are already deploying the service because they feel it’s stable enough for commercial use, says Newell.
Posted by Mehrdad at August 18, 2004 12:11 PM