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IPmux-4L is a TDM pseudowire access gateway extending TDM-based services over packet switched networks. It also serves as an Ethernet-based access device.




The unit provides a legacy over PSN solution for transmitting E1 streams over packet switched networks (PSNs). The device converts the data stream from its user E1 ports into packets for transmission over the network. The addressing scheme of these packets is IP or MPLS. These packets are transmitted via the IPmux-4L Ethernet network port to the PSN. A remote pseudowire device converts the packets back to TDM traffic.

The ASIC-based architecture provides a robust and high performance pseudowire solution with minimal processing delay.
The unit employs various legacy over packet protocols, including TDMoIP, CESoPSN, SAToP and HDLCoPSN

High-performance ASIC-based buffering and forwarding techniques achieve minimal end-to-end processing delay. Configurable packet size balances PSN
throughput and delay, while a jitter buffer compensates for packet delay variation (jitter) of up to 200 msec in the network. An assigned, IANA-registered UDP port number for pseudowire simplifies flow classification through switches and routers.




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