PWE3 – Pseudowire Emulation Edge to Edge
PWE3, also termed Pseudowires, are used extensively in IP-RAN scenarios whereby cell sites based on TDM or ATM transmission are linked to the core network using IP or MPLS based transport links. These links, although fundamentally packet based, can carry the native E1 frames or ATM cells, hence negating the requirement to upgrade the cell site device yet still benefitting from IP/MPLS transport in the RAN.
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