GE MultiLink ML1600 User manual

MultiLink ML1600
Ethernet Communications Switch
Instruction Manual
Software Revision 3.x
Manual P/N: 1601-0221-AA
Manual Order Code: GEK-113041J
Copyright © 2008 GE Multilin
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GE Multilin's Quality MGMNT
System is registered to
ISO9001:2000
QMI # 005094
UL # A3775
GE Consumer & Industrial
Multilin
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.GEmultilin.com
*1601-0221-AA*

These instructions do not purport to cover all details or variations in equipment nor provide
for every possible contingency to be met in connection with installation, operation, or
maintenance. Should further information be desired or should particular problems arise
which are not covered sufficiently for the purchaser’s purpose, the matter should be referred
to the General Electric Company.
To the extent required the products described herein meet applicable ANSI, IEEE, and NEMA
standards; but no such assurance is given with respect to local codes and ordinances
because they vary greatly.
© 2008 GE Multilin Incorporated. All rights reserved.
GE Multilin Multilink ML1600 instruction manual for revision 3.x.
Multilink ML1600 is a registered trademark of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part numbers contained in this manual are subject to change without notice, and should
therefore be verified by GE Multilin before ordering.
Part number: 1601-0221-AA (June 2008)

TOC TABLE OF CONTENTS
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL TOC–I
Table of Contents
1: INTRODUCTION GETTING STARTED ............................................................................................................. 1-1
INSPECTING THE PACKAGE AND PRODUCT ........................................................................1-1
ORDERING ........................................................................................................................... 1-2
ORDER CODES .......................................................................................................................1-2
SPECIFICATIONS .................................................................................................................1-3
TECHNICAL SPECIFICATIONS ................................................................................................1-3
ENVIRONMENTAL SPECIFICATIONS ......................................................................................1-5
PHYSICAL SPECIFICATIONS ...................................................................................................1-5
APPROVALS AND WARRANTY ..............................................................................................1-5
SOFTWARE OVERVIEW ..................................................................................................... 1-6
COMMAND LINE SOFTWARE ................................................................................................1-6
ENERVISTA SOFTWARE ......................................................................................................... 1-6
BEFORE STARTING .................................................................................................................1-7
COMMAND LINE INTERFACE SOFTWARE ..................................................................... 1-8
CONSOLE CONNECTION .......................................................................................................1-8
CONSOLE SETUP .................................................................................................................... 1-8
CONSOLE SCREEN .................................................................................................................1-9
LOGGING IN FOR THE FIRST TIME ....................................................................................... 1-9
AUTOMATIC IP ADDRESS CONFIGURATION .......................................................................1-9
SETTING THE IP PARAMETERS .............................................................................................1-10
PRIVILEGE LEVELS ..................................................................................................................1-12
USER MGMNT ......................................................................................................................1-12
HELP ........................................................................................................................................ 1-13
EXITING ................................................................................................................................... 1-15
ENERVISTA SECURE WEB MGMNT ................................................................................. 1-16
LOGGING INFOR THE FIRST TIME .......................................................................................1-16
PRIVILEGE LEVELS ..................................................................................................................1-17
USER MGMNT ......................................................................................................................1-17
MODIFYING THE PRIVILEGE LEVEL ......................................................................................1-20
HELP ........................................................................................................................................ 1-20
EXITING ................................................................................................................................... 1-21
ML1600 SOFTWARE UPDATES ........................................................................................ 1-22
UPDATING MULTILINK SOFTWARE .....................................................................................1-22
SELECTING THE PROPER VERSION ......................................................................................1-22
UPDATING THROUGH THE COMMAND LINE ....................................................................... 1-22
UPDATING THROUGH THE ENERVISTA SOFTWARE ...........................................................1-23
2: PRODUCT
DESCRIPTION
OVERVIEW ............................................................................................................................ 2-1
INTRODUCTION TO THE ML1600 ....................................................................................... 2-1
DESIGN ASPECTS ...................................................................................................................2-2
COMMUNICATIONS MODULES ....................................................................................... 2-3
FOUR-PORT MODULES .........................................................................................................2-3
SIX-PORT MODULES ..............................................................................................................2-4
EIGHT-PORT MODULES .........................................................................................................2-4
GIGABIT (1000 MBPS) MODULES ......................................................................................2-5
FEATURES AND BENEFITS ................................................................................................ 2-6
PACKET PRIORITIZATION, 802.1PQOS .............................................................................2-6
FRAME BUFFERING AND FLOW CONTROL ......................................................................... 2-6
MULTILINK SWITCH SOFTWARE ..........................................................................................2-6

TOC–II MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
TABLE OF CONTENTS
ADDITIONAL FEATURES AND BENEFITS ..............................................................................2-7
APPLICATIONS .................................................................................................................... 2-8
DESCRIPTION ..........................................................................................................................2-8
INDUSTRIAL APPLICATIONS ...................................................................................................2-8
REDUNDANT RING TOPOLOGY ............................................................................................2-9
TELECOMMUNICATIONS ENVIRONMENT .............................................................................2-10
3: INSTALLATION PREPARATION ..................................................................................................................... 3-1
PRECAUTIONS .........................................................................................................................3-1
LOCATING THE ML1600 .....................................................................................................3-1
CONNECTING ETHERNET MEDIA ................................................................................... 3-2
DESCRIPTION ..........................................................................................................................3-2
CONNECTING ST-TYPE FIBER OPTICS (TWIST-LOCK) ........................................................3-2
CONNECTING SC-TYPE FIBER OPTICS (SNAP-IN) ..............................................................3-2
CONNECTING SINGLE-MODE FIBER OPTICS ......................................................................3-3
CONNECTING RJ45 TWISTED PAIR ....................................................................................3-3
CONNECTING GIGABIT MEDIA USING GBICS....................................................................3-4
MECHANICAL INSTALLATION .......................................................................................... 3-5
DIN-RAIL MOUNTING ...........................................................................................................3-5
MOUNTING DIMENSIONS WITH METAL BRACKETS ...........................................................3-6
ELECTRICAL INSTALLATION ............................................................................................ 3-8
POWERING THE ML1600 ....................................................................................................3-8
UL REQUIREMENTS FOR DC-POWERED UNITS ................................................................3-8
ALARM CONTACTS .................................................................................................................3-9
CONNECTING A MGMNT CONSOLE TERMINAL TO THE ML1600 ........................... 3-10
DESCRIPTION ..........................................................................................................................3-10
4: OPERATION FUNCTIONALITY ................................................................................................................. 4-1
SWITCHING FUNCTIONALITY ................................................................................................4-1
FILTERING AND FORWARDING .............................................................................................4-1
ADDRESS LEARNING ..............................................................................................................4-2
STATUS LEDS........................................................................................................................4-2
UP-LINK MANUAL SWITCHES (FOR RJ45 PORT ONLY) ....................................................4-2
AUTO-NEGOTIATION (FOR FAST ETHERNET COPPER PORTS) ............................................4-2
FLOW CONTROL (IEEE 802.3X) .........................................................................................4-3
POWER BUDGET CALCULATIONS WITH FIBER MEDIA ......................................................4-4
TROUBLESHOOTING .......................................................................................................... 4-6
OVERVIEW .............................................................................................................................. 4-6
BEFORE CALLING FOR ASSISTANCE ....................................................................................4-6
WHEN CALLING FOR ASSISTANCE ......................................................................................4-6
5: IP ADDRESSING IP ADDRESS AND SYSTEM INFORMATION ................................................................... 5-1
OVERVIEW .............................................................................................................................. 5-1
IMPORTANCE OF AN IP ADDRESS .................................................................................. 5-3
DHCP AND BOOTP ...............................................................................................................5-3
BOOTP DATABASE .................................................................................................................5-3
CONFIGURING DHCP/BOOTP/MANUAL/AUTO .................................................................5-3
USING TELNET .......................................................................................................................5-5
SETTING PARAMETERS ..................................................................................................... 5-8
SETTING SERIAL PORT PARAMETERS ..................................................................................5-8
SYSTEM PARAMETERS ...........................................................................................................5-8

TOC TABLE OF CONTENTS
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL TOC–III
DATE AND TIME .....................................................................................................................5-9
NETWORK TIME .....................................................................................................................5-10
SYSTEM CONFIGURATION ................................................................................................ 5-13
SAVING AND LOADING – COMMAND LINE ........................................................................5-13
CONFIG FILE ...........................................................................................................................5-13
DISPLAYING CONFIGURATION ..............................................................................................5-16
SAVING CONFIGURATION .....................................................................................................5-19
SCRIPT FILE ............................................................................................................................5-21
SAVING AND LOADING – ENERVISTA SOFTWARE .............................................................5-22
HOST NAMES .........................................................................................................................5-25
ERASING CONFIGURATION ................................................................................................... 5-26
IPV6 ........................................................................................................................................ 5-30
INTRODUCTION TO IPV6 ....................................................................................................... 5-30
WHAT’SCHANGED IN IPV6? ...............................................................................................5-30
IPV6 ADDRESSING ................................................................................................................ 5-31
CONFIGURING IPV6 ..............................................................................................................5-32
LIST OF COMMANDS IN THIS CHAPTER ...............................................................................5-33
6: ACCESS
CONSIDERATIONS
SECURING ACCESS ............................................................................................................ 6-1
DESCRIPTION ..........................................................................................................................6-1
PASSWORDS ...........................................................................................................................6-1
PORT SECURITY FEATURE ..................................................................................................... 6-2
CONFIGURING PORT SECURITY THROUGH THE COMMAND LINE INTERFACE .. 6-3
COMMANDS ............................................................................................................................6-3
SECURITY LOGS .....................................................................................................................6-9
AUTHORIZED MANAGERS ..................................................................................................... 6-10
CONFIGURING PORT SECURITY WITH ENERVISTA SOFTWARE .............................. 6-12
COMMANDS ............................................................................................................................6-12
LOGS ....................................................................................................................................... 6-14
AUTHORIZED MANAGERS ..................................................................................................... 6-15
7: ACCESS USING RADIUS INTRODUCTION TO 802.1X .............................................................................................. 7-1
DESCRIPTION ..........................................................................................................................7-1
802.1XPROTOCOL ...............................................................................................................7-1
CONFIGURING 802.1X THROUGH THE COMMAND LINE INTERFACE ................... 7-4
COMMANDS ............................................................................................................................7-4
EXAMPLE ................................................................................................................................. 7-6
CONFIGURING 802.1X WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 7-9
COMMANDS ............................................................................................................................7-9
8: ACCESS USING
TACACS+
INTRODUCTION TO TACACS+ ......................................................................................... 8-1
OVERVIEW .............................................................................................................................. 8-1
TACACS+ FLOW ..................................................................................................................8-2
TACACS+ PACKET ...............................................................................................................8-2
CONFIGURING TACACS+ THROUGH THE COMMAND LINE INTERFACE .............. 8-4
COMMANDS ............................................................................................................................8-4
EXAMPLE ................................................................................................................................. 8-4
CONFIGURING TACACS+ WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 8-6

TOC–IV MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
TABLE OF CONTENTS
9: PORT MIRRORING AND
SETUP
PORT MIRRORING .............................................................................................................. 9-1
DESCRIPTION ..........................................................................................................................9-1
PORT MIRRORING USING THE COMMAND LINE INTERFACE .................................. 9-2
COMMANDS ............................................................................................................................9-2
PORT SETUP ......................................................................................................................... 9-3
COMMANDS ............................................................................................................................9-3
FLOW CONTROL ....................................................................................................................9-5
BACK PRESSURE ....................................................................................................................9-5
BROADCAST STORMS ............................................................................................................9-8
LINK LOSS ALERT ..................................................................................................................9-11
PORT MIRRORING USING ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 9-13
COMMANDS ............................................................................................................................9-13
PORT SETUP ...........................................................................................................................9-14
BROADCAST STORMS ............................................................................................................9-16
10: VLAN VLAN DESCRIPTION ........................................................................................................... 10-1
OVERVIEW .............................................................................................................................. 10-1
TAG VLAN VS. PORT VLAN ................................................................................................10-3
CONFIGURING PORT VLANS THROUGH THE COMMAND LINE INTERFACE ........ 10-4
DESCRIPTION ..........................................................................................................................10-4
COMMANDS ............................................................................................................................10-4
EXAMPLE ................................................................................................................................. 10-5
CONFIGURING PORT VLANS WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 10-9
DESCRIPTION ..........................................................................................................................10-9
CONFIGURING TAG VLANS THROUGH THE COMMAND LINE INTERFACE ........... 10-13
DESCRIPTION ..........................................................................................................................10-13
COMMANDS ............................................................................................................................10-13
EXAMPLE ................................................................................................................................. 10-14
CONFIGURING TAG VLANS WITH ENERVISTA SOFTWARE ...................................... 10-20
DESCRIPTION ..........................................................................................................................10-20
11: VLAN REGISTRATION
OVER GARP
OVERVIEW ............................................................................................................................ 11-1
DESCRIPTION ..........................................................................................................................11-1
GVRP CONCEPTS ..................................................................................................................11-1
GVRP OPERATIONS ..............................................................................................................11-2
CONFIGURING GVRP THROUGH THE COMMAND LINE INTERFACE ...................... 11-7
COMMANDS ............................................................................................................................11-7
GVRP OPERATION NOTES ...................................................................................................11-7
CONFIGURING GVRP WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 11-9
EXAMPLE ................................................................................................................................. 11-9
12: SPANNING TREE
PROTOCOL (STP)
OVERVIEW ............................................................................................................................ 12-1
DESCRIPTION ..........................................................................................................................12-1
FEATURES AND OPERATION .................................................................................................12-1
CONFIGURING STP ............................................................................................................ 12-3

TOC TABLE OF CONTENTS
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL TOC–V
13: RAPID SPANNING
TREE PROTOCOL
OVERVIEW ............................................................................................................................ 13-1
DESCRIPTION ..........................................................................................................................13-1
RSTP CONCEPTS ...................................................................................................................13-1
TRANSITION FROM STP TO RSTP .......................................................................................13-2
CONFIGURING RSTP THROUGH THE COMMAND LINE INTERFACE ....................... 13-4
NORMAL RSTP ......................................................................................................................13-4
SMART RSTP (RING-ONLY MODE) THROUGH THE COMMAND LINE INTERFACE ......... 13-14
CONFIGURING STP/RSTP WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 13-16
NORMAL RSTP ......................................................................................................................13-16
SMART RSTP (RING-ONLY MODE) WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE .........................................................................................13-20
14: QUALITY OF SERVICE QOS OVERVIEW .................................................................................................................. 14-1
DESCRIPTION ..........................................................................................................................14-1
QOS CONCEPTS .....................................................................................................................14-1
DIFFSERV AND QOS .............................................................................................................14-2
IP PRECEDENCE ..................................................................................................................... 14-2
CONFIGURING QOS THROUGH THE COMMAND LINE INTERFACE ........................ 14-4
COMMANDS ............................................................................................................................14-4
EXAMPLE ................................................................................................................................. 14-6
CONFIGURING QOS WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 14-9
DESCRIPTION ..........................................................................................................................14-9
15: IGMP OVERVIEW ............................................................................................................................ 15-1
DESCRIPTION ..........................................................................................................................15-1
IGMP CONCEPTS ..................................................................................................................15-1
IP MULTICAST FILTERS .........................................................................................................15-4
RESERVED ADDRESSES EXCLUDED FROM IP MULTICAST (IGMP) FILTERING ...............15-5
IGMP SUPPORT .....................................................................................................................15-5
CONFIGURING IGMP THROUGH THE COMMAND LINE INTERFACE ...................... 15-6
COMMANDS ............................................................................................................................15-6
EXAMPLE ................................................................................................................................. 15-8
CONFIGURING IGMP WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 15-11
EXAMPLE ................................................................................................................................. 15-11
16: SNMP OVERVIEW ............................................................................................................................ 16-1
DESCRIPTION ..........................................................................................................................16-1
SNMP CONCEPTS .................................................................................................................16-1
TRAPS ...................................................................................................................................... 16-3
STANDARDS ............................................................................................................................16-3
CONFIGURING SNMP THROUGH THE COMMAND LINE INTERFACE ..................... 16-5
COMMANDS ............................................................................................................................16-5
EXAMPLE ................................................................................................................................. 16-6
CONFIGURING SNMP WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE ........................................................................................... 16-11
EXAMPLE ................................................................................................................................. 16-11
CONFIGURING RMON ....................................................................................................... 16-14

TOC–VI MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
TABLE OF CONTENTS
DESCRIPTION ..........................................................................................................................16-14
COMMANDS ............................................................................................................................16-14
17: MISCELLANEOUS
COMMANDS
ALARM RELAYS ...................................................................................................................17-1
DESCRIPTION ..........................................................................................................................17-1
CONFIGURING ALARM RELAYS THROUGH THE COMMAND LINE INTERFACE ................17-2
CONFIGURING ALARM RELAYS WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE .........................................................................................17-5
E-MAIL ................................................................................................................................... 17-6
DESCRIPTION ..........................................................................................................................17-6
COMMANDS ............................................................................................................................17-6
EXAMPLE ................................................................................................................................. 17-8
STATISTICS ........................................................................................................................... 17-9
VIEWING PORT STATISTICS WITH ENERVISTA SECURE WEB MANAGEMENT
SOFTWARE .........................................................................................17-9
SERIAL CONNECTIVITY ...................................................................................................... 17-11
DESCRIPTION ..........................................................................................................................17-11
HISTORY ................................................................................................................................ 17-12
COMMANDS ............................................................................................................................17-12
PING ...................................................................................................................................... 17-13
PING THROUGH THE COMMAND LINE INTERFACE ............................................................17-13
PING THROUGH ENERVISTA SECURE WEB MANAGEMENT SOFTWARE .........................17-13
PROMPT ................................................................................................................................ 17-14
CHANGING THE COMMAND LINE PROMPT ........................................................................17-14
SYSTEM EVENTS .................................................................................................................. 17-15
DESCRIPTION ..........................................................................................................................17-15
COMMAND LINE INTERFACE EXAMPLE ...............................................................................17-15
ENERVISTA EXAMPLE ............................................................................................................17-16
SUBSYSTEM EVENT LIST .......................................................................................................17-17
COMMAND REFERENCE .................................................................................................... 17-21
MAIN COMMANDS .................................................................................................................17-21
CONFIGURATION COMMANDS .............................................................................................17-23
18: MODBUS PROTOCOL MODBUS CONFIGURATION ............................................................................................. 18-1
OVERVIEW .............................................................................................................................. 18-1
COMMAND LINE INTERFACE SETTINGS ...............................................................................18-1
ENERVISTA SETTINGS ............................................................................................................18-2
MEMORY MAPPING ............................................................................................................ 18-3
MODBUS MEMORY MAP .......................................................................................................18-3
FORMAT CODES .....................................................................................................................18-24
19: APPENDIX REVISION HISTORY ............................................................................................................ 19-1
RELEASE DATES .....................................................................................................................19-1
CHANGES TO THE MANUAL ..................................................................................................19-2
CONFORMANCE STATEMENTS ....................................................................................... 19-5
FCC RFI STATEMENT ...........................................................................................................19-5
CANADIAN EMISSION STATEMENT ......................................................................................19-5
WARRANTY .......................................................................................................................... 19-6

MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 1–1
Multilink ML1600
Ethernet Communications Switch
Chapter 1: Introduction
GE Consumer & Industrial
Multilin
Introduction
1.1 Getting Started
1.1.1 Inspecting the Package and Product
Examine the shipping container for obvious damage prior to installing this product; notify
the carrier of any damage that you believe occurred during shipment or delivery. Inspect
the contents of this package for any signs of damage and ensure that the items listed
below are included.
This package should contain:
• MultiLink ML1600 Ethernet Switch, base unit (configured with user-selected port
module options installed)
• Set of two vertical mount brackets with mounting screws
• Installation and user guide (this manual)
Remove the items from the shipping container. Be sure to keep the shipping container
should you need to re-ship the unit at a later date. To validate the product warranty, please
complete and return the enclosed product registration card to GE Multilin as soon as
possible.
In the event there are items missing or damaged, contact the party from whom you
purchased the product. If the unit needs to be returned, please use the original shipping
container if possible. Refer to Troubleshooting on page 4–7, for specific return procedures.

1–2 MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
ORDERING CHAPTER 1: INTRODUCTION
1.2 Ordering
1.2.1 Order Codes
The following table illustrates the order codes for the MultiLink ML1600 Ethernet Switch.
Table 1–1: ML1600 order code
ML1600 – * – * – * - – Base Unit
Module | ABMultiLink ML1600 Ethernet Switch
Power supply AC || | 100 to 240 V AC Power Supply
HI || | 110 to 250 V DC / 100 to 240 V AC Power Supply
LO || | 36 to 60 V DC Power Supply
Modules A1A1|4 ×10 Mb ST mm fiber
A2 A2 | 4 ×100 Mb ST mm fiber
A3 A3 | 4 ×100 Mb SC mm fiber
A4 A4 |8 ×10/100 Mb RJ45 copper
A5 A5 |2 ×10 Mb ST mm fiber + 4 ×10/100 Mb RJ45 copper
A6 A6 |2 ×100 Mb ST mm fiber + 4 ×10/100 Mb RJ45 copper
A7 A7 |2 ×100 Mb SC mm fiber + 4 ×10/100 Mb RJ45 copper
A8 A8 |2 ×100 Mb SC sm fiber + 4 ×10/100 Mb RJ45copper
AA AA |4 ×100 Mb LC mm fiber + 4 ×10/100 Mb RJ45 copper
AB AB |8 ×100 Mb LC mm fiber
AC AC |4 ×100 Mb LC sm fiber + 4 ×10/100 Mb RJ45 copper
AD AD |8 ×100 Mb LC sm fiber
AE AE |2 ×100 Mb LC sm fiber + 6 ×10/100 Mb RJ45 copper
AF AF |2 ×10 Mb ST mm fiber and 2 ×100 Mb ST mm fiber
AH AH |8 × 100 Mb MTRJ mm fiber
AJ AJ |4 × 100 Mb MTRJ mm fiber + 4 × 10/100 Mb RJ45 copper
AK AK |2 × 100 Mb MTRJ mm fiber + 6 × 10/100 Mb RJ45 copper
G3 G3 |1 ×1000 Mb SC mm fiber 2km + 2 ×100 Mb SC mm fiber
G4 G4 |1 ×1000 Mb SC mm fiber 2km + 4 ×RJ45 10/100 Mb RJ45 copper
G5 G5 |2 ×1000 Mb SC mm fiber 2km
GC GC |2 ×100 Mb SC mm fiber + 1 ×1000 Mb RJ45 copper
GD GD |1 ×1000 Mb RJ45 copper and 4 ×10/100 Mb RJ45 copper
GE GE |2 ×1000 Mb RJ45 copper
GF GF |1 ×1000 Mb SC sm fiber 10km + 2 ×100 Mb SC mm fiber
GH GH |1 ×1000 Mb SC sm fiber 10km + 4 ×10/100 Mb RJ45 copper
GJ GJ |2 ×1000 Mb SC sm fiber 10km
GK GK |1 x 1000 Mb SC sm fiber 25km + 2 x 100 Mb SC mm fiber
GL GL |1 x 1000 Mb SC sm fiber 25km
GM GM |2 x 1000 Mb SC sm fiber 25km
GN GN |1 x 1000 Mb SC sm fiber 40km + 2 x 100 Mb SC mm fiber
GO GO |1 x 1000 Mb SC sm fiber 40km + 4 x 10/100 Mb RJ45 copper
GP GP |2 x 1000 Mb SC sm fiber 40km
GQ GQ |1 x 1000 Mb SC sm fiber 70km + 2 x 100 Mb SC mm fiber
GR GR |1 x 1000 Mb SC sm fiber 70km + 4 x 10/100 Mb RJ45 copper
GS GS |2 x 1000 Mb SC sm fiber 70km
Harsh Environment X Standard Environment
HHarsh Chemical Environment Option

CHAPTER 1: INTRODUCTION SPECIFICATIONS
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 1–3
1.3 Specifications
1.3.1 Technical Specifications
PERFORMANCE
Ethernet (10 Mb):.............................................14880 pps
Fast Ethernet (100 Mb):................................148,800 pps
Gigabit Ethernet (1000 Mb): ......................1488000 pps
Switching processing: ..................................Store and forward with IEEE 802.3x full-duplex flow -
control, non-blocking
Data rate:...........................................................10 Mbps, 100 Mbps and 1000 Mbps
Address table capacity:...............................4K node, self-learning with address aging
Packet buffer size:..........................................240 KB for 10/100; 120 KB for 1000 Mb
Latency: ..............................................................5 μs + packet time (100 to 100Mbps)
15 μs + packet time (10 to 10 Mbps and 10 to 100 Mbps)
RO mode recovery time (typical):............≤5 ms/hop
NETWORK STANDARDS AND COMPLIANCE
Ethernet V1.0/V2.0 IEEE 802.3: ................10Base-T
IEEE 802.3u:.......................................................100Base-TX, 100Base-FX
IEEE 802.3z: .......................................................1000Base-X Ethernet (auto-negotiation)
IEEE 802.3ab:....................................................1000Base-X Ethernet
IEEE 802.1p:.......................................................Priority protocol
IEEE 802.1d:.......................................................Spanning tree protocol
IEEE 802.1q:.......................................................VLAN tagging
IEEE 802.3x:.......................................................Flow control
MAXIMUM 10 MBPS ETHERNET SEGMENT LENGTHS
Unshielded twisted pair: .............................100 m (328 ft.)
Shielded twisted pair:...................................150 m (492 ft.)
10Base-FL multi-mode fiber optic: .......2 km (6562 ft.)
10Base-FL single-mode fiber optic: .....10 km (32810 ft.)
MAXIMUM STANDARD FAST ETHERNET SEGMENT LENGTHS
10Base-T (CAT 3, 4, 5 UTP): ........................100 m (328 ft.)
100Base-TX (CAT 5 UTP): .............................100 m (328 ft.)
Shielded twisted pair:...................................150 m (492 ft.)
100Base-FX, half-duplex, multi-mode: 412 m (1350 ft.)
100Base-FX, full-duplex, multi-mode: .2.0 km (6562 ft.)
100Base-FX, half-duplex, single-mode: 412 m (1350 ft.)
100Base-FX, full-duplex, long reach: ...40.0 km (122K ft.)
MAXIMUM STANDARD GIGABIT ETHERNET SEGMENT LENGTHS
1000Base-T (CAT5e or higher is recommended): 100 m (328 ft.)
1000Base-SX, full-duplex, multi-mode (62.5 μm cable): 220 m
1000Base-SX, full-duplex, multi-mode (50 μm cable): 550 m
FIBER MULTI-MODE CONNECTORS
Fiber port, ST (twist-lock): ..........................fiber multi-mode, 10 Mb 10Base-FL
Fiber port, SC-type (snap-in): ...................fiber multi-mode, 100Base-FX
Fiber port, ST-type (twist-lock): ...............fiber multi-mode, 100Base-FX
Fiber port, 1000Base-FX:............................GBIC modules

1–4 MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
FIBER SINGLE-MODE CONNECTORS
Fiber port, SC-type:........................................Fiber optic single-mode, 100Base-FX
Fiber port, 1000Base-FX:............................GBIC modules
LEDS
LK:..........................................................................steady ON when media link is operational
ACT: .......................................................................ON with receiver port activity
FDX/HDX:............................................................ON = full-duplex mode
OFF = half-duplex mode
100/10: ................................................................ON = 100 Mbps; OFF = 10 Mbps
ALARM RELAY CONTACTS
One NC indicating internal power, one NC software controllable
Maximum Voltage:.........................................up to 250 V AC, 220 V DC
Maximum Switching Power:......................60 W, 125 VA
Maximum Carrying Current:......................2 A @ 30 V DC
0.2 A @ 220 V DC
MGMNT CONSOLE
Connector:.........................................................DB-9 for RS-232 “null-modem” cable (sometimes called
an X-modem cable)
POWER SUPPLY
Input voltage: ...................................................LOW RANGE (LO Power Supply)
Nominal DC Voltage: 48 V DC
Min/Max DC Voltage: 36/60 V DC
................................................................................HIGH RANGE (HI and AC Power Supply)
Nominal DC Voltage: 110 to 250 V DC
Min/Max DC Voltage: 88/300 V DC
Nominal AC Voltage: 100 to 240 V AC
Min/Max AC Voltage: 85/265 V AC
Input current (fiber): ......................................LO: 1.59 A maximum
HI: 1.8 A maximum for AC voltage
0.9 A maximum for DC voltage
AC: 1.8 A maximum
Standard terminal block: ...........................“–”, “+”, internally floating
Ground: ...............................................................Terminal for filter ground wire, external connection to the
ML1600 chassis
Power consumption:.....................................55 watts typical; 60 watts maximum for a fully loaded
fiber model; 35 watts maximum for a fully-loaded RJ45
model
Internal Fuse:.......................................... HI: Ceramic, axial SLO BLO, 3 A /350 V AC
Manufacturer: Conquer
Part Number: SCD-A 003
LO: Ceramic, axial SLO BLO, 5 A /350 V AC
Manufacturer: Conquer
Part Number: SCD-A 005
PER-PORT JUMPERS AND SWITCHES
The copper daughter board has on internal switch for selecting MDI-MDIX crossover on port # 1.
Other port-specific user settings (such as FDX or HDX, copper 10/100 speed) can be fixed using
software commands.

CHAPTER 1: INTRODUCTION SPECIFICATIONS
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 1–5
1.3.2 Environmental Specifications
OPERATING ENVIRONMENT
Ambient temperature: .................................–40 to 185°F (–40 to 85°C) for IEC 60068-2-1, IEC 60068-
2-2
Nominal ≤50°C
Storage temperature:...................................–60 to 210°F (–50 to 100°C)
Ambient relative humidity: ........................5% to 95% (non-condensing)
Altitude:...............................................................2000 m
1.3.3 Physical Specifications
MOUNTING
Vertical:...............................................................suitable for stand-alone or rack mounting
PACKAGING
Enclosure: .........................................................rugged high-strength sheet metal
Dimensions: ......................................................1.94 in. ×9.25 in. ×10.24 in. (H ×W ×D)
4.92 cm ×23.5 cm ×26.0 cm (H ×W ×D)
1.3.4 Approvals and Warranty
APPROVALS
FCC:.......................................................................Emissions meet FCC part 15 class A
NEBS:....................................................................level 3
ETSI: ......................................................................certified for carrier central offices
IEEE: ......................................................................IEEE P1613 environmental standard for electric power
substations
IEC:.........................................................................IEC61850 EMC and operating conditions class C for
power substations
CE:..........................................................................EN 50082-1, EN 55022:1998, EN 60950 3rd Edition
UL:..........................................................................UL Listed/Recognized (file E156407)
UL 60950-1 1st edition
CSA:.......................................................................Certified per C22.2 No.60950-1 1st edition
WARRANTY
24 months from date of shipment
Manufactured in USA
GE Multilin reserves the right to change specifications, performance, characteristics, and/or model
offerings without notice.

1–6 MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
SOFTWARE OVERVIEW CHAPTER 1: INTRODUCTION
1.4 Software Overview
1.4.1 Command Line Software
Commands typed by the user will be shown in the following color and font.
command
The MultiLink Switch Software prompt will be shown in bold and fixed-width text, with a #
or >character at the end. The default prompt is indicated as follows:
ML1600#
The following hold for syntax rules:
• Syntax rules are italicized
• The command part is in bold
• Optional entries are shown in [square brackets]
• Parameter values within are shown in <pointed brackets>
• Optional parameter values are shown again in [square brackets]
Thus, the syntax
command [parameter1=<value1>[,paramter2=<value2>]]
parameter3=<value3|value4>
indicates the following:
• parameters 1 and 2 are optional
• parameter 2 can be used optionally only if parameter 1 is specified
• parameter 3 is mandatory.
Whenever the word PC is used, it implies a UNIX, Linux, Windows, or any other operating
system based workstation, computer, personal computer, laptop, notebook or any other
computing device. Most of the manual uses Windows XP based examples. While effort has
been made to indicate other operating system interactions, it is best to use a Windows-XP
based machine when in doubt.
The documentation reflects features of MultiLink Switch Software version 1.6.1 or later. If
your switch is not at the current version, GE Multilin recommends upgrade to version 1.6.1
or later. Please refer to the GE Multilin website for information on upgrading the MultiLink
Switch Software.
1.4.2 EnerVista Software
Icons common to the EnerVista MultiLink Secure Web MGMNT (SWM) software for edit,
delete, save and refresh are:
• Edit - edit the values
• Delete - delete the current row or the value(s)
• Save - save configuration changes
• Refresh - repaint the screen

CHAPTER 1: INTRODUCTION SOFTWARE OVERVIEW
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 1–7
1.4.3 Before Starting
This section explains how to setup the GE MultiLink family of switches using the console
port on the switch. Some of the functionality includes setting up the IP address of the
switch, securing the switch with a user name and password, setting up VLANs and more.
Before you start, it is recommended to acquire the hardware listed below and be ready
with the items listed.
For initial configuration through the serial/console port:
1. A female-female null modem cable.
2. A serial port. If your PC does not have a serial port, you may want to invest in
a USB-to-serial converter or USB-to-serial cable.
3. Terminal emulation software such as HyperTerminal or other equivalent
software. Ensure the software supports Xmodem protocol, as you may need
this in the future to update the MultiLink Switch Software.
4. Enough disk space to store and retrieve the configuration files as well as copy
software files. We recommend at least 15 MB of disk space for this purpose.
5. For access security - decide on a manager level account name and password
6. IP address, netmask, default gateway for the switch being configured.
As a default, the switch has no IP (Internet Protocol) address and subnet mask. For first
time use, the IP address has to be assigned. This can only be done by using the console
interface provided.
The same procedure can also be used for other configuration changes or updates (for
example, changing the IP address, VLAN assignments and more). Once the IP address is
assigned and a PC is networked to the switch, the switch's command line interface (CLI)
can be accessed via telnet. To manage the switch through in-band (networked) access
(e.g. telnet, or web browser Interface), you should configure the switch with an IP address
and subnet mask compatible with your network. Also, change the manager password to
control access privileges from the console.
Many other features such as optimizing the switch's performance, traffic engineering and
traffic prioritizing, VLAN configuration, and improving network security can be configured
through the switch's console interface as well as in-band (networked) access, once the IP
address is setup. Besides the IP address, setting up the SNMP parameters allows
configuration and monitoring through an SNMP network MGMNT station running a
network MGMNT program.

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COMMAND LINE INTERFACE SOFTWARE CHAPTER 1: INTRODUCTION
1.5 Command Line Interface Software
1.5.1 Console Connection
The connection to the console is accessed through the DB-9 RS232 connector on the
switch marked as the console port. This command line interface (or CLI) provides access to
the switch commands. It can be accessed by attaching a VT100 compatible terminal or a
PC running terminal emulation software to the console port.
USB-to-serial adapters are also available for computers that do not native serial ports but
have access to USB ports.
The interface through the console or the console MGMNT interface (or CMI) enables you to
reconfigure the switch and to monitor switch status and performance.
Once the switch is configured with an IP address, the command line interface (or CLI) is
also accessible using telnet as well as the serial port. Access to the switch can be either
through the console interface or remotely over the network. Simultaneous access (that is,
through the console port as well as through the network) to the MultiLink switch is not
permitted.
The Command Line Interface (CLI) enables local or remote unit installation and
maintenance. The MultiLink family of switches provides a set of system commands which
allow effective monitoring, configuration and debugging of the devices on the network.
1.5.2 Console Setup
Connect the console port on the switch to the serial port on the computer using the serial
cable listed above. The settings for the HyperTerminal software emulating a VT100 are
shown below. Make sure the serial parameters are set as shown (or bps = 38400, data bits
= 8, parity = none, stop bits = 1, flow control = none).
FIGURE 1–1: Serial Settings in HyperTerminal

CHAPTER 1: INTRODUCTION COMMAND LINE INTERFACE SOFTWARE
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 1–9
1.5.3 Console Screen
Once the console cable is connected to the PC and the software configured, ML1600 legal
disclaimers and other text scrolls by on the screen.
The line interface prompt appears displaying the switch model number (e.g. ML1600>)
The switch has three modes of operation: operator (least privilege), manager, and
configuration. The prompts for the switches change as the switch changes modes from
operator to manager to configuration. The prompts are shown below with a brief
description.
•ML1600>
Operator Level - for running operations queries
•ML1600#
Manager Level - for setting and reviewing commands
•ML1600##
Configuration Level - for changing the switch parameter values
For additional information on default users, user levels and more, refer to User MGMNT on
page 1–12.
1.5.4 Logging in for the First Time
For the first time, use the default user name and passwords assigned by GE. They are:
•Username:manager
Password: manager
•Username:operator
Password: operator
We recommend you login as manager for the first time to set up the IP address as well as
change user passwords or create new users.
1.5.5 Automatic IP Address Configuration
The ML1600 is operational immediately after it is powered up. The advanced MGMNT and
configuration capabilities of the ML1600 allows you to easily configure, manage, and
secure your devices and network.
Before starting, ensure you have the following items:
• RJ45 Ethernet cable
•PCwithanEthernetport
• Microsoft Internet Explorer 6.0 or higher
• Macromedia Flash Player 5.0 or higher (available from http://
www.macromedia.com/shockwave/download/
download.cgi?P1_Prod_Version=ShockwaveFlash)
Ensure both software components are installed before proceeding.
The ML1600 can search the network for commonly used services that can issue an IP
address. If the switch is connected to a network, the ML1600 uses the following process to
find an IP address.

1–10 MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
COMMAND LINE INTERFACE SOFTWARE CHAPTER 1: INTRODUCTION
Note If the ML1600 is not connected to a network, then proceed to Step 3 below. or use the
default IP address.
Step 1:
The ML1600 will scan the network for a DHCP server. If the server responds, the ML1600
will acquire and set the assigned IP address. To manage the switch, determine the
assigned IP address and enter as follows in Internet Explorer:
https://<assigned_IP_address>
Ensure that https is entered, not http, and that there is connectivity (that is, you can ping
the switch).
Step 2:
If there is no response from a DCHP server, the ML1600 will query for a BOOTP server. If the
server responds, the ML1600 will acquire and set the assigned IP address. To manage the
switch, determine the assigned IP address and enter as follows in Internet Explorer:
https://<assigned_IP_address>
Ensure that https is entered, not http, and that there is connectivity (that is, you can ping
the switch).
Step 3:
If there is no response from either a DCHP or BOOTP server, or if the switch is not
connected to a network, the switch will assign itself an IP address. The ML1600 will check
to see if IP address 192.168.1.2, with a network mask of 255.255.255.0, is free. If so, it will
assume these values. If this IP address is assigned to another device, the ML1600 will
repeat steps 1 through 3 to find a DCHP or BOOTP server or wait for the 192.168.1.2
address to become free.
Once connected, the browser will display a login prompt. The default login is:
•Username:manager
Password: manager
1.5.6 Setting the IP Parameters
To setup the switch, the IP address and other relevant TCP/IP parameters have to be
specified.
The IP address on the MultiLink switch is set to 192.168.1.2 from the factory. The switch is
fully operational as a Layer 2 switch as a default. Setting a default IP address can
potentially cause duplicate IP address problem if multiple switches are powered on and
installed on the network. To manage the switch, an IP address has to be programmed.
Before starting, please ensure that the IP address assigned to the switch is known or
contact your system/network administrator to get the IP address information. Follow the
steps listed below to configure the switch.
ZEnsure the power is off.
ZFollow the steps described above for connecting the console cable
and setting the console software.
ZPower on the switch.

CHAPTER 1: INTRODUCTION COMMAND LINE INTERFACE SOFTWARE
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 1–11
ZOnce the login prompt appears, login as manager using default
password (manager).
ZConfigure the IP address, network mask and default gateway as
per the IP addressing scheme for your network.
ZSet the manager password (this step is recommended; refer to the
following section).
ZSave the settings (without saving, the changes made will be lost).
ZPower off the switch (or a software reboot as discussed below).
ZPower on the switch - login with the new login name and password
ZFrom the PC (or from the switch) ping the IP address specified for
the switch to ensure connectivity
ZFrom the switch ping the default gateway specified (ensure you are
connected to the network to check for connectivity) to ensure
network connectivity
Syntax:
ipconfig [ip=<ip-address>] [mask=<subnet-mask>] [dgw=<gateway>]
An example is shown below.
ML1600# ipconfig ip=3.94.247.41 mask=255.255.252.0
dgw=3.94.247.41
ML1600# save
Note This manual assumes the reader is familiar with IP addressing schemes, net masks, and
how default gateways and routers are used in a network.
Reboot gives an opportunity to save the configuration prior to shutdown. For a reboot,
simply type in the command reboot. Note that even though the passwords are not
changed, they can be changed later.
ML1600# reboot
Proceed on rebooting the switch? ['Y' or 'N'] Y
Do you wish to save current configuration? ['Y' or 'N'] Y
ML1600#
The ML1600 forces an answer by prompting with a “Y” or a “N” to prevent accidental
keystroke errors and loss of work.
The parameters can be viewed at any time by using the show command. The show
command will be covered in more detail later in various sections throughout the
document.
The example below illustrates the basic setup parameters. You can use show setup or
show sysconfig commands to view setup parameters
ML1600# show setup
Version: ML1600 build 1.6.1 Apr 29 2005 11:10:13
MAC Address: 00:20:06:27:0a:e0
IP Address: 3.94.247.41
Subnet Mask: 255.255.252.0
Gateway Address: 3.94.244.1
CLI Mode: Manager
System Name: ML1600

1–12 MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
COMMAND LINE INTERFACE SOFTWARE CHAPTER 1: INTRODUCTION
System Description: 16 Port Modular Ethernet Switch
System Contact: [email protected]
System Location: Markham, Ontario
System ObjectId: 1.3.6.1.4.1.13248.12.7
ML1600# show sysconfig
System Name: ML1600
System Contact: [email protected]
System Location: Markham, Ontario
Boot Mode: manual
Inactivity Timeout(min): 120
Address Age Interval(min): 300
Inbound Telnet Enabled: Yes
Web Agent Enabled: Yes
Time Zone: GMT-05hours:00minutes
Day Light Time Rule: Canada
System UpTime: 0 Days 0 Hours 45 Mins 55 Secs
ML1600#
Some of the parameters in the MultiLink family of switches are shown above. The list of
parameters below indicates some of the key parameters on the switch and the
recommendations for changing them (or optionally keeping them the same).
1.5.7 Privilege Levels
Two privilege levels are available - manager and operator. Operator is at privilege level 1
and the manager is at privilege level 2 (the privilege increases with the levels). For example,
to set up a user for basic monitoring capabilities use lower number or operator level
privilege (level 1)
The Manager level provides all operator level privileges plus the ability to perform system-
level actions and configuration commands. To select this level, enter the enable <user-
name> command at the Operator level prompt and enter the Manager password, when
prompted.
enable <user-name>
For example, switching from an operator-level to manager-level, using the enable
command is shown below.
ML1600> enable manager
Password: *******
ML1600#
Note the prompt changes with the new privilege level.
Operator privileges allow views of the current configurations but do not allow changes to
the configuration. A “>” character delimits the operator-level prompt.
Manager privileges allow configuration changes. The changes can be done at the
manager prompt or for global configuration as well as specific configuration. A “#”
character delimits any manager prompt.
1.5.8 User MGMNT
A maximum of five users can be added per switch. Users can be added, deleted or
changed from a manager level account. There can be more than one manager account,
subject to the maximum number of users on the switch being restricted to five.