Nokia Layer 2 VPN and Layer 3 VPN Services

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.

 

 

IES (Internet Enhanced Service)

 

IES (Internet Enhanced Service) 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:

 

Logical View of IES

 

Customer View of IES

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VPWS (Virtual Private Wire Service)

 

VPWS (Virtual Private Wire Service) is a Layer 2 Point-to-Point VPN Service. Here, customer traffic is encapsulated and transfered over service provider network. In this VPN Service, customer do not aware of service provider network. Customer sees only a logical connection between its branches like a leased line.

According to used layer 2 technology, VPWS has also some sub types like Epipe, Apipe, Fpipe, Cpipe and Ipipe. The logical view of VPWS is below:

 

Logical View of VPWSYou can also see this network from customers perspective. From the customer point of view, VPWS (Virtual Private Wire Service) is like below:

Customer View of VPWS

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VPLS (Virtual Private LAN Service)

 

VPLS (Virtual Private LAN Service) is a Layer 2 Multipoint-to-Multipoint VPN Service. Here, customer traffic is encapsulated and transfered over service provider network. In this VPN Service, customer do not aware of service provider network. From customer perspective VPLS is like connecting its sites to the different ports of a an Ethernet Switch.

 

The logical view of VPLS is below:

 

Logical View of VPLS 

From the customer point of view, VPLS (Virtual Private LAN Service)is like below:

 

Customer View of VPLS

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VPRN (Virtual Private Routed Network)

 

VPRN (Virtual Private Routed Network) is a Layer 3 Multipoint-to-Multipoint VPN Service. Here, customer traffic is encapsulated and transfered over service provider network. In this VPN Service, again customer do not aware of service provider network. From customer perspective, VPRN is like connecting its sites to the different ports of a router.

 

The logical view of VPRN is below:

 

Logical View of VPRN 

From the customer point of view, VPRN (Virtual Private Routed Network)is like below:

 

Customer View of VPRNThis article is only, a basic look up to Nokia VPN Service Types. In the following articles, we will deeply explore the services. Keep on ipcisco.com;)