Ethernet Switching

Ethernet continues to grow as the most ubiquitous form of interconnect between PC, Servers, within Servers, Metro Access and in the Storage Area Networks. The 10G Ethernet technology has been limited by the cost of interconnects at a time when both telecommunications and IT spending has remained stagnant. Latest IEEE standards broke down the cost of 10Gps Ethernet interconnects, and simplified network design. Fujitsu is now offering two 10G Ethernet products to serve in various segments and to enable customer to benefit from the upcoming appearance of 10G Ethernet on the mass market.

MB8AA3020
20 port 10G Ethernet switch with 10G SerDes and management processor integrated on chip
The new AXEL-X Ethernet switch follows up the latest trends in networking and telecommunication applications like on chip management processor, large internal buffer sizes and on chip 10G serial interfaces enabling cost effective XFP based fiber networks designs.

Applications
- Enterprise
- Data centres
- Metro networks
- Grid computing and server clusters
- Blade Server
- AdvancedTCAs

Key features
- 20-port 10Gbps Ethernet layer-2 switch chip
- On chip: management processor, accusable via two 1GE ports
- On chip: XAUI, eXAUI (CX4) and 10G serial
- Drive copper cable up to 25m
- Direct support for XFP fiber modules
- On chip 2+Mbyte cut-through buffer size
- Fully featured priority and PAUSE management

Benefits
- Simplifies managed network designs drastically
- Support for VLAN, extended VLAN and arbitrarily sized networks
- 400+Gbps throughput
- Lowest latency
- Lowest power consumption
- Smallest footprint: no external processor interface required
- Lowest system cost, especially for managed switch applications

Technologies
- 90nm CMOS
- Cost effective FCBGA1156
- High Speed I/O
- Application Customised Memory

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MB87Q3140
10Gbps Ethernet 12-port Ethernet Switch IC for Bladed Chassis
To meet the high performance, low-cost and high-density needs of the data center Fujitsu has enhanced features to its previously announced CX-4 based, 12-port 10Gbps Ethernet switch on a chip to meet the needs of Bladed Chassis equipment. Here are its key applications and features.

Applications
- Enterprise
- Data centres
- Metro networks
- Grid computing and server clusters

Key features
- 12-port 10Gbps Ethernet layer-2 switch chip
- Support for VLAN, QoS (802.1p), multicast and MSTP (802.1S)
- On-chip high throughput buffer memory
- Integrated XAUI/CX-4/KX-4 SERDES
- Drive copper cable up to 25m
- 802.3ae PAUSE support

Benefits
- High density and low cost
- Total aggregate throughput of 240Gbps
- Low latency for cluster applications
- Lower cost of interconnects
- Increased capacity of links with reliability using link aggregation
- Lower power ideal for Bladed equipment (Blade Servers and ATCA)

Enabling Technologies
- High-throughput memory for packet buffering
- Buffer management for low latency
- XAUI and MAC macro integration for low cost

Evaluation and Reference Design

An evaluation board, available now, contains the 10Gbps switch chip with support for nine CX-4 channels and three Xenpak modules. The firmware, which offers dynamic switching, can run any combination of ports. A reference design is also available.