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MPLS Technologies Carrier Ethernet services can be delivered over networks based on these MPLS technologies: Virtual Private Wire Service (VPWS) Virtual Private LAN Service (VPLS) MPLS Transport Profile (MPLS-TP) These technologies are based on MPLS standards specified by IETF and ITU-T. They all require some form of layer 1/2 transport technology between the routers. Topologies These technologies can operate over any physical topology: mesh (full and partial) tree rings Architecture For the purposes of Carrier Ethernet, the fundamentals of VPWS, VPLS and MPLS-TP are similar with LERs (PEs) at the network edges and LSRs (PEs) in the core.

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MPLS Technologies

Carrier Ethernet services can be delivered over networks based on these MPLS technologies:

Virtual Private Wire Service (VPWS)
Virtual Private LAN Service (VPLS)
MPLS Transport Profile (MPLS-TP)

These technologies are based on MPLS standards specified by IETF and ITU-T. They all require some form of layer 1/2 transport technology between the routers.

Topologies

These technologies can operate over any physical topology:

mesh (full and partial)
tree
rings

Architecture

For the purposes of Carrier Ethernet, the fundamentals of VPWS, VPLS and MPLS-TP are similar with LERs (PEs) at the network edges and LSRs (PEs) in the core.

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