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For questions about Multi-Protocol Label Switching (MPLS), the layer 2.5 protocol used as a transport layer for Traffic Engineering, some Layer 2 & 3 VPN's, and VPLS.
0
votes
WAN lines types - understanding leased line/circuit
point to multi-point
MP-MP mesh(VPLS/frame relay/ATM)
DIA - Dedicated Internet Access
Blockquote
A leased circuit could be done with a MPLS tunnel with what we call Provider router, and Customer Router …
1
vote
Is this how ATM and SONET work?
The only thing that i would advise changing is that SONET devices are not 'switches' They do not decapsulate or encapsulate at layer-2. They put received frames into containers and transmit them withi …