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Nokia Layer 2/3 VPN Services
In this article we will talk about Nokia VPN Service Types used in Nokia Service Routers. Why Nokia use “Service Router” term for their service routers? This is because, different Nokia VPN Services are given to customers through these routers.
Services that are given with Service Routers can be divided to two group. One is providing “internet connection” to customer. The other group provide L2/L3 Nokia VPN Service Types to customers.
The internet connection is provided with IES (Internet Enhanced Service) throught service routers. The VPN connection is provided under three service. These services are VPWS (Virtual Private Wire Service), VPLS (Virtual Private LAN Service) and VPRN (Virtual Private Routed Network). VPWS and VPLS are L2 VPN service. VPRN is Layer 3 VPN service.
To sum up the services given under Nokia (formerly Alcatel-Lucent) service routers, let’s check these services orderly.
It is the layer 3 direct internet access service to the customer that an IP interface is assigned to the customer for internet connectivity. The logical view of IES is below:
It is a layer 2 point-to-point service. VPWS has also some sub types like Epipe, Apipe, Fpipe, Cpipe and Ipipe. The logical viev of VPWS is below:
It is a layer 2 multipoint-to-multipoint service. From customer perspective VPLS is like connecting sites to the different ports of a switch. The logical view of VPLS is below:
You can check the customer view of VPLS below.
It is a layer 3 multipoint-to-multipoint service. From customer perspective VPRN is like connecting sites to the different ports of a router.The logical view of VPRN is below:
You can see the customer view of VPRN below: