TXC04212 Overview
The EtherMap™-12 is a highly integrated, STS-12/STM-4 rate SONET/SDH device that provides mapping of 10/100/1000 Mbps Ethernet traffic into SONET/SDH Transport structures. The EtherMap-12 has on the Ethernet side, either Eight 10/100 Mbps SMII MAC interfaces or One independent 1000 Mbps GMII MAC interface. Over-subscription is allowed for example in mapping One Gigabit Ethernet stream into either a single...
TXC04212 Key Features
- Eight 10/100 Mbit/s Ethernet ports, each using a SMII interface
- Single 1000 Mbit/s Ethernet port, using a parallel GMII interface (lead shared with SMII interfaces)
- Ethernet Management interface for control and configuration of externally connected PHYs
- GMII Mux-mode allowing multiple concatenation groups from one GMII
- Supports IEEE 802.3 flow control (Half and Full-duplex) and management statistics (RMON) on 10/100/1000 Mbit/s Ethernet
- Ethernet frame encapsulation/decapsulation protocols
- ITU-T G.7041, Generic Framing Procedure (GFP)
- ITU-T X.86/X.85, Link Access Procedure SDH (LAPS)
- ITU-T Q.922, Link Access Procedure Frame Mode (LAPF)
- IETF RFC2878, Point-to-Point Protocol (PPP) with Bridging Control Protocol (BCP) support