ZL50130 Datasheet | Zarlink Semiconductor

Features Ethernet Pseudo-Wire Emulation Functions Supports the following functions for Ethernet Pseudo Wire emulation over the packet domain: - - - - Transports the plete Ethernet frame (less preamble and FCS) across the PSN Supports up to 127 point-to-point pseudo-wire links across the PSN VLAN priority field may be used to determine class of service on the PSN plies with the standards for Ethernet pseudowires proposed in the IETF’s PWE3 working group 3 x 100 Mbit/s MII interfaces Packet Processing Functions - - - - - Network Interfaces - Host Processor Interface Motorola Power QUICCTM II patible packet receive/classifier protocol engine task manager MAC packet transmit - add layer 2/3 headers memory management / on-chip packet memory Optional Off-chip Packet Memory 0-8 MBytes SSRAM Figure 1 - High Level Overview Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003-2004, Zarlink Semiconductor Inc. All Rights Reserved. Packet Switched Network Interface 100 Mbit/s MII Host Processor Interface with DMA support Customer End Services 100 Mbit/s MII Description Data Sheet The ZL50130 is part of a range of highly functional bridging devices. It provides the capability to extend a Local Area Network based on Ethernet across a service provider’s packet switched network. This allows a pany with multiple sites to manage its network as though it was a single LAN. In conjunction with an Ethernet aggregation network, the ZL50130 provides the dataplane requirements of the interworking function between the customer end services and the provider’s packet switched network (see Figure 2). It can support wire-speed processing of up to 100 Mbit/s of traffic in each direction, and provides up to 127 separate pseudo-wire connections across the PSN. Packets arriving from a single customer end service may all be directed onto a single pseudo-wire, or split across multiple...