NOTE:

Only the NE05E-S2/NE05E-SF/NE05E-SH/NE08E-S6 support E1 interfaces.

E1 interfaces support the following link protocols: PPP, ATM, and TDM

E1 interfaces support the loopback function, including local loopback and remote loopback.

PPP on E1 interfaces supports:

• LCP

• IPCP

• MPLSCP

• MP

ATM on E1 interfaces supports:

• A single E1 ATM TC link

• Multiple E1 ATM links that are bound as an inverse multiplexing over ATM (IMA) group

TDM on E1 interfaces supports:

• Emulation of TDM E1 services for transparent transmission

• Circuit emulation service (CES) implemented by using pseudo wire emulation edge-to-edge (PWE3)

• Fractional E1. Different timeslots of an E1 can be bound into different CES PWs.

• Structure-Aware TDM Circuit Emulation Service over Packet Switched Network (CESoPSN) and Structure-Agnostic Time Division Multiplexing over Packet (SAToP) services