Products MDX251

MDX251
Fibre Channel / ESCON / FICON GFP-T Mapper

MDX251 is a multi-channel GFP-T mapper for Storage Area Networking protocols. Connecting seamlessly with next-generation SONET/SDH framers supporting frame-mapped GFP, Virtual Concatenation and LCAS, the MDX251 provides an efficient solution for channelized SAN transport.

Interfaces

• Equipment / client side:
• 4 x TBI capable of carrying Fibre Channel, FICON, ESCON, or Gigabit Ethernet
• Network Side
• 4 channel OIF compliant SPI-3 Master
• Control/Test
• Non-multiplexed Address/Data
• IEEE 1149.1 compliant JTAG

• Network Access Equipment ( e.g. modem )
• Telecom/Datacom Aggregation Equipment ( e.g. MSPP )
• Multi-Service Customer Premises or Customer Located Equipment ( e.g. microMSPP)
• Test Equipment
• For additional solutions please visit our solutions catalog.

• 4 TBI ports
• Support for Fibre Channel, FICON, ESCON or Gigabit Ethernet
• 8B/10B Decoding/Encoding
• 64B/65B Decoding/Encoding
• GFP-T Superblock generation/termination
• Support for subrate mapping
• Channelized SPI-3 Master (Link Layer) interface
• Direct connection to SPI-3 Slave (PHY) interface
• 8 or 32 bits @ up to 104MHz
• 4 rate-independent channels
• Generic 16-bit microprocessor interface
• Non-multiplexed Address/Data + Control

The MDX251 performs Transparent GFP superblock generation/termination for 4 channels of 8B/10B-encoded data. When coupled with a SONET/SDH framer which supports Frame-Mapped GFP this provides a complete solution for transport of SAN protocols using GFP-T. Supported client protocols are Fibre Channel, FICON, ESCON, and Gigabit Ethernet. Client ports can be individually clocked at rates from 20 MHz to 125 MHz. A four-channel Multi-PHY SPI-3 Master (Link Layer) interface is provided to seamlessly interface to SONET/SDH data mappers such as the Galazar VersaNode, MSF2500, MSF250, DSF2500, or DSF250.

The MDX251 maps packet data from each of 4 TBI interfaces into individual SPI-3 channels. The 8B/10B encoding of client frames is terminated and client data/control is re-encoded using 64B/65B encoding and formatted into GFP-T superblocks according to ITU-T G.7041. The superblocks are then transmitted over the SPI-3 interface in round robin fashion. The client protocol and number of superblocks per GFP frame is provisionable on a per channel basis. In the receive direction, superblocks received over the SPI-3 interface are terminated and client data is re-encoded using 8B/10B encoding and transmitted over the TBI interfaces. Rate adaptation due to differences in remote and local client clocks is done by removal/insertion of IDLE codes between client frames.

In subrate assist mode, receive and transmit FIFO status is also provided to allow for management of flow control in applications where the provisioned network bandwidth is less than the full rate of the client port.

The SPI-3 Master interface operates in 8-bit or 32-bit mode at up to 104MHz for transfer rates up to 3.2Gbps. This interface supports direct, selected and polled packet availability flow control signals from the corresponding SPI-3 Slave. In the transmit direction, the SPI-3 always transfers packets across the SPI-3 bus in blocks of 68 bytes (corresponding to a GFP-T superblock). In the receive direction the SPI-3 can receive transfers of any block size.

For more sample solutions, please visit our solutions catalog.

For more information on the MDX251 device, please contact your Galazar Networks Sales representative at http://www.galazar.com/contact/sales.html.

Galazar Networks, the Galazar Networks logo, SOLAR, ASSURED are registered trademarks of Galazar Networks Inc. The information found in this document is subject to change without notice. This material is provided on an "as is" basis. Galazar Networks Inc. makes no representation or warranties of any kind, expressed or implied arising out of the application or use of any product described herein, neither does it convey any license under its patent rights, copyrights, or trade secrets nor the rights of others. This document is the property of Galazar Networks Inc. No part of this publication may be copied, reproduced, stored in a retrieval system, or transmitted, in any form of any means, electronic, photographic, or otherwise, or used as the basis for manufacture or sale of any items without the prior written consent of Galazar Networks Inc.

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