Saturday, July 12, 2014

what is L2VPN ??

Hi Friends,


Today i will try to clear some of your doubts about L2VPN .

L2VPN- In this the service provider supplies a service of point-to-point links or virtual circuits across his network between the routers of the customer. 
    These point-to-point services could be of Layer 1, 2, or even 3. Examples of Layer 1 are timedivisionmultiplexing (TDM), E1, E3, SONET, and SDH links. Examples of Layer 2 are virtual circuits created by X.25, ATM, or Frame Relay.




The L2VPN  service can also be provided over the IP Layer 3 protocol. Most commonly used tunnels to build the overlay network on IP are generic routing encapsulation (GRE) tunnels.

We have heard about number of services like Bank taking lease line , this is L2VPN service in which bank don't share its routes with service provider .

In next post we will try to share some points about L3VPN and pros and cons between them.

Br//

Rishabh Mittal.

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