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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 and high-speed data 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-2L Ethernet network port to the PSN. A remote pseudowire device converts the packets back to TDM traffic.




IPmux-2L features an internal Layer-2 Ethernet switch with three Ethernet ports. The ports can be configured to operate as network or user interfaces.
Each Ethernet port features:

  • Port-based rate limiting for bandwidth control
  • Four priority queues (strict or weighted) for handling traffic with different service demands. Traffic is classified according to IP Precedence, 802.1P, DSCP or port default priority.
  • Port-based VLAN membership for ingress traffic restriction
  • Port-based VLAN tagging
  • Double VLAN tagging (VLAN stacking)
  • Bridging and filtering.

The device supports standard IP features, such as ICMP (ping), ARP, next hop and default gateway.


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