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Summary of Contents for E3Switch DS3
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Page 1: Operating Information
DS3/E3 over Ethernet Pseudowire Gateway V5.4 November 11 , 2010 Operating Information... - Page 2 E3Switch reserves the right to revise or update its products or documentation without obligation to notify any individual or entity. Please direct all inquiries to:...
- Page 3 This product has been tested and found to comply with the limits for Class A Information Technology Equipment according to CISPR 22/European Standard EN 55022. The limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communication equipment.
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Page 4: Table Of Contents
Speed..........................13 Autonegotiation Problems........................13 SFP Second LAN Port........................14 Dedicated Management/Data LAN Ports....................14 VLAN ................................14 ..................14 ISABLE AND ETURN ERVICE ELAY DS3/E3 Return to Service delay......................14 Auto-Disable..........................14 6: I ......................... 15 HAPTER NTEROPERABILITY ................................15 Autonegotiation problems........................15 SFP LAN Port 1..........................15 Pause Frames............................15 ..............................15... - Page 5 9: TDM LAN P ......................17 HAPTER ACKET ORMAT ..............................17 ENERAL ............................17 RANSPORT AYER 10: T ........................17 HAPTER ROUBLESHOOTING ..............................17 ENERAL ..............................18 ERFORMANCE ............................18 NTEROPERABILITY ...............................18 INGING ..........................18 IAGNOSIS 11: T ....................19 HAPTER HIRD ARTY OPYRIGHT OTICES ..............................19 ICENSE BSD C ...........................19...
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Page 6: Chapter 1: Description And Requirements
LAN between them. Reverse topology, to bridge two LANs over an intermediate E3 or T3/DS3 circuit, is not possible with this product; for that, please see our LAN Extender product line. The gateways must be used in pairs. Single-ended operation for connection to a third-party TDMoPSN gateway is not supported. -
Page 7: Chapter 2: Quick Set-Up
Attach two 75-ohm coaxial cables from the Port 2 BNC connectors of the gateway to the input and output connectors of your E3 or DS3 link. Once the gateway is receiving a valid TDM signal, the DS3/E3 Port LED will change from orange to alternating orange/green. The DS3/E3 Port LED will change to constant green when a full, unerrored pseudowire connection has been established between the two gateways with no TDM alarms at either end. -
Page 8: Chapter 4: Remote Management Http And Snmp
The gateway's management interface can be initially contacted at either its automatic link-local IP address e3switch.local as described below or at its initial numeric IP address described below. Note that after initial setup, an operator may have changed the contact IP address to a new value and the initial addresses below may not work. -
Page 9: Management Passwords
IP address. The source Ethernet MAC address of such packets and E3Switch gateways is 00:50:C2:6F:xx:xx. Tcpdump or Wireshark are two readily available software packages to examine network packets. -
Page 10: Http Management
The gateway contains a comprehensive, user-friendly HTTP management interface which allows a manager to monitor bit-error-rates on the DS3/E3 link, lost packets, and user-friendly status messages at a single, color-coded HTTP screen. A screenshot is available at www.e3switch.com. Most settings that can be modified via SNMP can also be set through the HTTP interface in a more user-friendly manner. -
Page 11: Upgrading Firmware
The cable length setting will transmit a slightly stronger signal on long DS3 coax runs. The M13/C-Bit setting sets the AIC bit in DS3 frames to either 0 or 1. This bit is typically ignored by the DS3 carrier; however DS3 carrier equipment set to autosense the incoming DS3 framing type will need this setting to be correct. -
Page 12: Packet Flow
TDM packets through the LAN. While traveling across packet switched networks, received packets may arrive out of sequence for a variety of reasons. E3Switch gateways will use sequence numbers, present in the packets, to restore original packet order. -
Page 13: Port To Port Packet Flow
Loopback C-Bit T3 TDM ports will respond to FEAC loopback requests. A TDM port can also be put into loopback via appropriate DS3-MIB SNMP commands. LAN Port Settings The hardware for two LAN ports exist on all gateways shipped; however, entry-level models ship with only 100Base-TX mode on LAN Port 2 enabled. -
Page 14: Sfp Second Lan Port
Port Auto-Disable and Return-to-Service Delay In addition to manually configuring a port as disabled, the gateway has the ability to delay a DS3/E3 port's return to service for a specified period of time after it has failed or disable a LAN port if both TDM circuits are down. -
Page 15: Chapter 6: Interoperability
The gateway generates no pause frames and ignores pause command frames sent to it. Telecom The gateway can transmit over a variety of E3 or T3/DS3 links (with appropriate media gateways) such as fiber optic, microwave radio, laser, copper, satellite, or a combination; however, the attachment interface is always via 75-ohm copper coaxial rather than optical. -
Page 16: Chapter 7: Telecom Connections
The maximum length of each cable shall be 440 meters for E3 or 300 meters for T3/DS3, but the acceptable cable lengths of equipment attached to the gateway must be met as well. For lengths over 135 meters, testing in field should be used to determine whether bit error rates are acceptable. -
Page 17: Lan Cabling
Incoming Circuit ID is shown at the top of the gateway's HTTP management page for C-Bit DS3 links, facilitating confirmation of the remote data transmitter when presented with a pair of unlabeled BNC cables. -
Page 18: Performance
2. The DS3/E3 BER light of the gateway should be illuminated and green. This indicates that a valid, DS3/E3 waveshape is being received without bit errors and with proper framing. Refer to the front panel section of this document for other light colors. -
Page 19: Chapter 11: Third Party Copyright Notices
E3Switch is grateful for and contributes to open source software development which may be protected by the following copyright notices and license terms: eCos License E3Switch gratefully acknowledges the contributions of the eCos developers and community. Current eCos source files are available at http://ecos.sourceware.org/ E3Switch implementation-specific modifications to those files are available by contacting E3Switch LLC. - Page 20 Chapter 11: Third Party Copyright Notices All Rights Reserved Permission to use, copy, modify and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appears in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of CMU and The Regents of the University of California not be used in advertising or publicity...
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Page 21: The Apache License
Chapter 11: Third Party Copyright Notices trademarks of Sun Microsystems, Inc. in the U.S. and other countries. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. -
Page 22: The Sha2 Copyright
The BZIP2 License E3Switch gratefully acknowledges Julian Seward, Cambridge, UK. jseward@bzip.org for his selfless contribution of bzip2/libbzip2 version 1.0.4 of 20 December 2006 The atHTTPD License E3Switch gratefully acknowledges Anthony Tonizzo (atonizzo@gmail.com) for his selfless contribution of athttpd to the eCos community. -
Page 23: Chapter 12: Technical Specifications And Standards
Chapter 12: Technical Specifications and Standards Chapter 12: Technical Specifications and Standards Please see separate specification datasheet.
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