Metrodata MetroLAN-1000 User manual

Metrodata Ltd
Fortune House
Crabtree Office Village
Eversley Way
Egham
Surrey TW20 8RY
United Kingdom
tel: [phone]
fax:[phone]
email: [email protected].uk Part No: 76-02-060B
website: www.metrodata.co.uk
Metrodata MetroLAN
Quick Start Guide
www.metrodata.co.uk
MetroLAN
User
Manual

Metrodata Ltd
No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any language or computer language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior
written permission of
Disclaimer
Metrodata Ltd makes no representations or warranties with respect to the contents hereof
and specifically disclaims any implied warranties or merchantability or fitness for any
particular purpose. Further, Metrodata Ltd reserves the right to revise this publication and to
make changes from time to time in the content hereof without obligation of Metrodata Ltd to
notify any person of such revision or changes.
Trademarks
The Trademarks of other Corporations which may be used in this manual are hereby
acknowledged.
Copyright © 2006 by Metrodata Ltd
All Rights Reserved
Metrodata Ltd,
Fortune House,
Crabtree Office Village,
Eversley Way,
Egham, Surrey, TW20 8RY,
United Kingdom.
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
www: http://www.metrodata.co.uk
ftp://ftp.metrodata.co.uk

CONTENTS
1 INTRODUCTION 1
1. 1 Typical MetroLAN Installation 2
2 STATUTORY INFORMATION 3
2. 1 Safety 3
2. 2 Electromagnetic Compatibility 3
2. 3 EN55022 Declaration 3
2. 4 FCC Declaration 3
2. 5 Laser technology 3
2. 6 Power Supply 4
2. 7 On board batteries 4
3 METROLAN PHYSICAL 5
3.1 Front Panel 5
3.2 Rear panels 6
3.3 10/100 BaseT LAN ports 6
3 . 3. 1 LAN RJ45 port pinout 7
3.4 E1/T1 RJ45 port layout 7
3.5 E3/DS3 BNC port layout 7
3.6 9-Pin Terminal Port 8
4 QUICK START CONFIGURATION 9
4.1 Logging in to MetroLAN 9
4.2 Navigating the User Interface 9
4.3 Configuring the System 10
4 . 3. 1 Setting the Time 10
4 . 3. 2 Setting the Date 10
4 . 3. 3 Setting the Node Name 10
4.4 Configuration of the Data Ports 10
4.5 Configuring the SDH Network Port 11
4 . 5. 1 Timing 11
4 . 5. 2 Payload 12
4 . 5. 3 Path Signal Label 12
4.6 Optional Configuration Items 13
4 . 6. 1 C1/J0 Operating Mode 13
4 . 6. 2 Path Overhead, J1 Path Trace Configuration 13
4.7 Configuring LAN ports 14
4 . 7. 1 LAN Port Configuration 15
4.7.1.1 State 15
4.7.1.2 Allocation 16
4.7.1.3 LCAS 16
4.7.1.4 Auto Negotiation 16
4 . 7. 2 Optional LAN port Configuration Items 17
4.7.2.1 Flow Control 17
4.7.2.2 MDI/MDIX 17
4.7.2.3 MAC Address 17
4.7.2.4 FCS Generation 17
4.7.2.5 Max Frame Size 17
4.7.2.6 GFP Payload FCS 17
4.7.2.7 Max Differential Delay Compensation 18
4.7.2.8 J1/J2 Strings 18

4.8 E1/T1 Port Configuration 19
4 . 8. 1 State 20
4 . 8. 2 Interface 20
4 . 8. 3 Allocation 20
4.9 Optional E1/T1 Configuration Parameters 20
4 . 9. 1 Rx Sensitivity/Line Build Out 20
4 . 9. 2 Path Trace Identifier 20
4.10 E3/DS-3 Port Configuration 21
4 . 10. 1 State 21
4 . 10. 2 Interface 21
4 . 10. 3 Allocation 21
4.11 Optional E1/T1 Configuration Parameters 21
4 . 11. 1 TX Line Build Out 21
4 . 11. 2 J1 Path Trace Identifier 22
4.12 Remote Management Configuration 22
4 . 12. 1 Setting the Unit IP Address 22
4 . 12. 2 Setting a default Route 22
5 FAULT FINDING 23
5. 1 Top Level Alarm Summary 23
5. 2 Global Status Overview 23
5. 3 Performance Data 23

INTRODUCTION
1 76-02-059A
1 INTRODUCTION
The Metrodata MetroLAN is a family of products which provide SDH access multiplexer
functionality. There are currently two products available:
MetroLAN-1000 which offers SDH STM-1 transport of up to 8 10/100BaseT ports, 8 E1/T1
ports
MetroLAN-2000 which additionally offers the transport of up to 3 E3/DS3 Ports.
The MetroLAN offers a transparent bridged connection over the SDH network. Transport of
LAN traffic utilises GFP for encapsulation of the LAN MAC frames and through VCAT
enables efficient bandwidth allocation through the use of multiple VC-12 tributaries. When
enabled, LCAS provides further flexibility by ensuring that failed VCAT tributaries are
seamlessly removed and restarted once the fault has been cleared. Up to 8 10/100BaseT
LAN ports may be connected.
Transport of E1/T1 traffic utilises asynchronous mapping of E1 or T1 into a single VC-12
tributary. The MetroLAN treats the E1/T1 as unframed passing the entire circuit
transparently. Up to 8 E1/T1 ports may be connected. Each E1/T1 port may be individually
selected for E1 or T1 operation.
Transport of E3/DS-3 traffic is available only on the MetroLAN-2000 product, and is achieved
through asynchronous mapping into a single VC-3 tributary. The MetroLAN treats the E3/
DS-3 as unframed, passing the entire circuit transparently. Up to 3 E3/DS-3 ports may be
connected. Each E3/DS-3 port may be individually selected for E3 or DS-3 operation.
The MetroLAN provides extensive configuration options to ensure inter operability with other
vendor equipment, and through comprehensive alarm reporting and performance monitoring
enables quick and easy diagnosis of network problems. Management of the MetroLAN may
be either local using a VT100 terminal or remotely over the LAN Management port using
either Telnet or SNMP. Further management options include the SDH overhead data link
management channels.

INTRODUCTION
2 76-02-059A
1. 1 Typical MetroLAN Installation
Figure 1.1 MetroLAN typical deployment
SDH Network
PBX
SWITCH
PBX
SWITCH
PBX SWITCH
HEAD OFFICE
100 Mbps
20 Mbps
STM-1
STM-1
STM-1
BRANCH
OFFICE
BRANCH
OFFICE
E1
E1
E1
10/100 BaseT
10/100 BaseT
10/100 BaseT

STATUTORY INFORMATION
3 76-02-059A
2 STATUTORY INFORMATION
2. 1 Safety
The following ports are designated SELV (Safety Extra Low Voltage) within the scope of
EN41003:
E1/T1 ports
E3/DS-3 ports
LAN ports
Terminal port
Management port
Alarm extension port
These ports should only be connected to SELV ports on other equipment in accordance with
EN60950 clause 2.3.
2. 2 Electromagnetic Compatibility
In order to ensure EMC compliance all signal and data cables and connectors must use a
screened connector shell with a screened cable. The cable screen must be terminated to the
screened connector shell and not connected to any pins of the connector. Failure to use the
correct connector may compromise EMC compliance.
2. 3 EN55022 Declaration
The MetroLAN unit is a Class A product. In a domestic environment it may cause radio
interference in which case the user may be required to take adequate measures.
2. 4 FCC Declaration
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at its own expense.
2. 5 Laser technology
The user is reminded that the MetroLAN employs laser technology. Care must be taken not
to expose the eyes to laser beams or radiation since eye tissue damage can result. The rear
panels of all models using laser technology are marked with a label as shown below:
Figure 2.1 Laser warning label

STATUTORY INFORMATION
4 76-02-059A
2. 6 Power Supply
The MetroLAN is powered by a mains power supply with an input voltage range 100-250
VAC / 50-400 Hz. The maximum operating input current is 400mA rms at 100VAC. Mains
power is connected via the IEC inlet on the rear of the unit.
An alternative -48VDC powered unit is available. The input voltage and current ranges are
minus 36 to 72 volts DC, 1000 - 500mA. A Buccaneer type socket is fitted to the rear panel,
and a plug is provided with the unit for the customer’s own wiring. The connections are
labelled on the rear panel of the MetroLAN. A schematic of the female -48V DC connector
mounted on the rear panel in the place of the AC IEC sockets is shown below.
Figure 2.2 -48VDC connections
Figure 2. 3 Schematic -48V DC power connector
On some units, an additional Ground stud may be located on the rear panel to permit a
separate Ground connection to be made.
Safety Note:
The MetroLAN must be connected to mains safety earth for correct operation.
Excessive voltages are present inside the unit. There are no user serviceable parts inside
the unit, and the cover should not be removed by unqualified personnel. The unit must not
be exposed to damp or condensing conditions. The MetroLAN must be connected to safety
earth for correct operation.
2. 7 On board batteries
The user is reminded that Metrodata motherboards use Lithium/Thionyl Chloride 3.6 volt
battery cells for the maintenance of RAM. These batteries must be handled with care. There
may be a risk of explosion if a battery is incorrectly replaced. Do not recharge, force open,
heat or dispose of by fire. Replace only with the same type of battery.
Disposal must be in accordance with the manufacturer’s instructions. If in doubt about any
aspect of battery replacement or disposal, please call Metrodata Technical Support
Department.
Pin no Connection
1-48VDC
2 Ground
30VDC
5
3
1Pin 1 = -48V
Pin 2 = 0V
Pin 3 = Earth

METROLAN PHYSICAL
5 76-02-059A
3 METROLAN PHYSICAL
The purpose of this document is to give a user, new to MetroLAN, a simple overview of how
to configure the various options to give a basic level of operation. This document should be
used in conjunction with the User Manual.
3.1 Front Panel
The front panel of the MetroLAN is shown in schematic form below.
Figure 3.1 MetroLAN front panel
The MetroLAN provides you with essential information through a series of LED’s on the front
panel. The colour of some of these LED’s will depend on the type of data that is being handled
at the time, and these are described in Figure 3.2 below. Note that the LINE port label refers
to the SDH port, whilst a Tributary fault may relate to any E1/T1 line, E3/DS-3 line, LAN or a
VC fault.
Figure 3.2 Front panel alarms
LED Colour Meaning
Power Red Power is being received.
Line SDH
Line Major Red LOS, LOF, LOC, SD or OOF alarm is present
Line Minor Yellow AIS, FERF or TIM alarm is present.
Tributary
Fault
Fault Red LOS (Major) or AIS (MInor) fault on any E1/T1or E3/DS-3 line
LKDN (Link Down) fault on any LAN port
VC fault
Test
Red Local loop test in progress on SDH or any E1/T1 or
E3/DS3 port
Unlit No test in progress
POWER TRIBUTARY
FAULT TEST
LINE
MAJOR
LINE
MINOR

METROLAN PHYSICAL
6 76-02-059A
3.2 Rear panels
The MetroLAN is supplied in a metal enclosure for tabletop or 19” rack mounting using the
integral rack mounting ears on the side of the module.The MetroLAN 1000 unit is 1U high,
whilst the MetroLAN 2000 which has the additional E3/DS-3 interfaces, is 1.5U high.
The layout of the rear panels with their connections is shown in the figures below.
Figure 3.3 MetroLAN 1000 rear panel
Figure 3.4 MetroLAN 2000 rear panel
3.3 10/100 BaseT LAN ports
There are 8 RJ45 based 10/100 BaseT LAN ports arranged in an array on the rear panel of
the MetroLAN.The schematic below shows the rear panels of both types of metroLAN.
Figure 3.5 MetroLAN rear panels
ALARM EXT
TERMINAL
100 -250VAC/50-400Hz www.metrodata.co.uk
Tx Rx
Network
STM-1/OC3
HAZARD WARNING!
DO NOT OPEN WITH
POWER CONNECTED
P2
P1
P4
P3
P6 P8
P5 P7
C R T L
O X X I
I N
L K
M AN
PORT 10/100BaseT
P1 P2 P3 P4 P5 P6 P7 P8
E1
BDF
H
AC
EG
10/100BaseT
P1 P2 P3 P4 P5 P6 P7 P8
100 -250VAC/50-400Hz
ALARM EXT
TERMINAL
www.metrodata.co.uk
Tx Rx
Network
STM-1/OC3
HAZARD WARNING!
DO NOT OPEN WITH
POWER CONNECTED
P2
P1
P4
P3
P6 P8
P5 P7
www.metrodata.co.uk
Rx Tx
Rx Tx
PORT 3 PORT 2
Rx Tx
PORT 1
METROLAN 2000
Metrodata Ltd (METROLAN)
C R T L
O X X I
I N
L K
M AN
PORT
E1
BD F
H
AC
EG
LK J
ALARM EXT
TERMINAL
100 -250VAC/50-400Hz www.metrodata.co.uk
Tx Rx
Network
STM-1/OC3
HAZARD WARNING!
DO NOT OPEN WITH
POWER CONNECTED
P2
P1
P4
P3
P6 P8
P5 P7
C R T L
O X X I
I N
L K
M AN
PORT 10/100BaseT
P1 P2 P3 P4 P5 P6 P7 P8
E1
BDF
H
AC
EG
10/100BaseT
P1 P2 P3 P4 P5 P6 P7 P8
100 -250VAC/50-400Hz
ALARM EXT
TERMINAL
www.metrodata.co.uk
Tx Rx
Network
STM-1/OC3
HAZARD WARNING!
DO NOT OPEN WITH
POWER CONNECTED
P2
P1
P4
P3
P6 P8
P5 P7
www.metrodata.co.uk
Rx Tx
Rx Tx
PORT 3 PORT 2
Rx Tx
PORT 1
METROLAN 2000
Metrodata Ltd (METROLAN)
C R T L
O X X I
I N
L K
M AN
PORT
E1
BD F
H
AC
EG
LK J

METROLAN PHYSICAL
7 76-02-059A
The 10/100 BaseT LAN ports are the left hand array as shown on the schematics above. The
upper array has green indicator LEDs (one for each port). The LEDs show green when the
port is active.The LED and port numbering is shown in the table below. This is also engraved
in a table on the rear panel.
Figure 3.6 LAN port indicator LEDs & port numbers
3 . 3. 1 LAN RJ45 port pinout
Each of the ports in the array has the pinout shown below, but will auto select MDI/MDIX
configuration.
Figure 3.7 RJ45 LAN port pinout
3.4 E1/T1 RJ45 port layout
In earlier models the E1/T1 ports may not be identified on the rear panel silk screening as
given in the figure above. The numeric and alpha port descriptions are given below:
:
Figure 3.8 E1/T1 Port by letter designations
3.5 E3/DS3 BNC port layout
Each E3/DS-3 port consists of two BNC outlets (Tx and Rx). The numeric and alpha port
descriptions which appear on the rear panel are given below:
:
Figure 3.9 E3/DS-3 Ports by number & letter
Note that the port designations read LKJ as you face the rear panel, though the screen
menus etc list them as JKL in the normal left to right manner.
Port indicator LED P1 P2 P3 P4 P5 P6 P7 P8
Upper ports P2 P4 P6 P8
Lower ports P1 P3 P5 P7
RJ45 Pin No 12345678
Function Rx + Rx - Tx + Tx -
E1/T1 Upper ports B D F H
E1/T1 Lower ports A C E G
PORT 3 L PORT 2 K PORT 1 J

METROLAN PHYSICAL
8 76-02-059A
3.6 9-Pin Terminal Port
The Terminal port is presented as a 9 way D-Type Female connector with the standard PC
pin configuration as shown below:
The terminal port on the rear panel is presented as a 9-pin D-type female connector with the
standard PC pin configuration as shown below
Figure 3.10 Terminal port layout
When a MetroLAN is first powered up the Terminal port will have the factory default
configuration.as below:
Baud Rate: 9200
Parity: None
Character: 8 bits
Stop Bits: 2
Flow Control: XON/XOFF
Pin Signal
1DCD
2 Receive Data
3 Transmit Data
4
5 Signal Ground
6DSR
7RTS
8CTS
9

QUICK START CONFIGURATION
9 76-02-059A
4 QUICK START CONFIGURATION
4.1 Logging in to MetroLAN
The MetroLAN has a password protected, menu driven user interface. When a terminal is
connected to the MetroLAN, press <ENTER> and the welcome banner will be displayed as
shown:
At the prompt, enter the password to gain access to the MetroLAN. The default password
is "metrolan". For security, the password is obscured with * being displayed for each
character typed. An incorrect password will lead to the welcome banner being redisplayed.
A correct password will lead onto the main set up menu . Initially, this will be in the TTY
format, but most users will wish to change to the VT100/220 style via the V.24 set-up function
and toggling through the item TERMINAL TYPE as described immediately below.
Figure 4.1 TTY style main menu screen VT100/220 menu style screen
4.2 Navigating the User Interface
The MetroLAN user interface is a simple, menu based interface. In the TTY mode of display,
each selectable item may be selected by typing the first capital of the option, e.g. for "Global
status" type <G> or <g>. Sometimes, where multiple items have the same starting letter the
selection capital will not be the first letter, e.g. "alarm eXtension" which is selected with <x>.
In the VT100/220 mode, the selectable letter is presented in bold face. On the right side of
the display is a list of what is below each item. This could be:
<menu>This indicates a sub-menu will be entered
<display>This indicates an information screen will be displayed, such as status or
statistics.
Metrodata MetroLAN: Local connection to "[nodeame]"
password ('view' to view only):
MAIN SET-UP MAIN SET-UP
Global status <display> Global status <display>
alarm eXtension <menu> alarm eXtension <menu>
Data port set-up <menu> Data port set-up <menu>
V.24 set-up <menu> V.24 set-up <menu>
Management <menu> Management <menu>
System <menu> System <menu>
Testing <menu> Testing <menu>
Performance data <menu> Performance data <menu>
Select item by using first CAPITAL
letter of name
HIGHLIGHTED letter - select item
<escape> - exit menu <escape> - exit menu

QUICK START CONFIGURATION
10 76-02-059A
When you press a letter which leads to a further menu, the screen will be refreshed without
scrolling, displaying the new menu.
If you press a letter corresponding to a menu option, the value opposite that option will be
highlighted. You will also see the prompts at the bottom of the screen, similar to the TTY
display:
Figure 4.2 Prompt screen
Pressing the space bar will cause the next available value to be displayed opposite the
option. When the required value is displayed, simply press the <enter> key to accept the
value or press <escape> to leave the existing value unchanged.This process is known as
toggling.
4.3 Configuring the System
The system menu provides the basic administrative configuration items for the MetroLAN
and should be configured first:
4 . 3. 1 Setting the Time
The time is configured using the hh:mm:ss format in 24 hour notation. It is important to set
the time correctly as all event logs are time stamped.
4 . 3. 2 Setting the Date
The date is configured using the dd/mm/yyyy format. It is important to set the date correctly
as all event logs are time stamped.
4 . 3. 3 Setting the Node Name
To enable identification of the MetroLAN unit it is useful to enter a meaningful name for the
unit. The node name is entered as a string of up to 16 alpha numeric characters, including
spaces.
4.4 Configuration of the Data Ports
This section deals with the configuration of each of the user data port types including SDH,
LAN, E1/T1 and E3/DS-3. A simple configuration will be shown for each type of port.
The port configuration is accessed from the main setup menu by selecting the data port
menu. The data port menu gives the following options
Figure 4.3 Data port menu
<space> - change value
<enter> - save new value
<escape> - exit without saving
DATA PORT SET-UP
SDH port <menu>
LAN port <menu>
E1/T1 port <menu>
DS3/E3 port <menu>

QUICK START CONFIGURATION
11 76-02-059A
4.5 Configuring the SDH Network Port
The SDH port configuration menu is accessed from the data port menu. For basic operation
only three parameters must be set, the remaining parameters are optional and in many
cases may be left in the default state.
Figure 4.4 SDH/Sonet set-up menu
4 . 5. 1 Timing
To ensure correct operation the correct timing mode must be configured for the SDH port.
The options are:
Internal: SDH Transmit timing derived from the local oscillator and will be accurate to
+/-15ppm
Loop: SDH Transmit timing is derived from the SDH receive
SDH/SONET
PORT
Type of fibre SM short-haul
Timing Loop
C1/J0 selection C1
E1 value 00
sDthresholds 10^-6
paYload <menu>-
Path signal label Auto
receiving 02 (TUG structure)
j1transmit “ “
j1 eXpected “ “
receiving “ “
RDI type 1 - bit

QUICK START CONFIGURATION
12 76-02-059A
4 . 5. 2 Payload
The SDH framing structure is very flexible and can support many operating modes. The
payload selection menu is used to determine how the frame is structured. Payload
configuration is dependant upon the application. The payload configuration is split into two
sections:
The Main Payload offers the following options
Figure 4.5 Payload options
4 . 5. 3 Path Signal Label
The path signal label, C2 overhead byte, is used to indicate the type of payload carried on
this network. C2 must be set correctly otherwise alarm conditions will be reported by the
network. The value to configure depends upon the payload mode selected as below:
Main Payload Mode = VC-4 Path Signal Label = 1B ( GFP )
Main Payload Mode = TUG-3 Path Signal Label = 02 ( TUG Structure )
AU-4/VC-4 This mode will only support transport of a single LAN port since it
utilizes the entire 149Mbps payload
AU-4/TUG-3 This mode will support transport of LAN, E1/T1 and E3/DS-3
Note that if the main payload mode is AU-4/TUG-3 then a sub menu
is also displayed to select the mode of each of the three TUG-3
containers. The options are listed below:
VC-3 This mode is required to transport an E3/DS-3 or can be used for a
single LAN port with 45Mbps bandwidth.
VC-12 This mode is required to transport an E1/T1, or can be used to
transport LAN traffic.

QUICK START CONFIGURATION
13 76-02-059A
4.6 Optional Configuration Items
The following configuration items are not required to get the basic unit operational but will be
required for a full deployment:
4 . 6. 1 C1/J0 Operating Mode
In the initial offering of ITU G.707 the C1 overhead byte was used to define the three
overhead columns. Later versions of G.707 reassigned C1 as J0 which may be used as an
identifier called the "Regenerator Section Trace". When the J0 mode of operation is
selected, the user may configure a 15 character string to uniquely identify this interface. The
16th byte is a CRC-7 which is calculated and appended automatically by the MetroLAN.
The user may configure the following:
J0 Transmit: “String of up to 15 alphanumeric characters"
J0 Receive: “String of up to 15 alphanumeric characters"
If an expected J0 receive value is configured, the MetroLAN will declare a TIM alarm when
there is a mismatch between the configured expected and actual receive J0 identifiers.
To assist the user in configuration, or fault diagnosis, the actual string being received is also
displayed.
4 . 6. 2 Path Overhead, J1 Path Trace Configuration
The J1 Path Trace Identifier is a 16 character string where the user may define up to 15
characters and the MetroLAN will append a CRC-7. The user may configure the following:
J1 Transmit: “String of up to 15 alphanumeric characters"
J1 Receive : “String of up to 15 alphanumeric characters"
If an expected J1 receive value is configured, the MetroLAN will declare a TIM alarm when
there is a mismatch between the configured expected and actual receive J1 identifiers.
To assist the user in configuration, or fault diagnosis, the actual string being received is also
displayed.

QUICK START CONFIGURATION
14 76-02-059A
4.7 Configuring LAN ports
The MetroLAN supports up to 8 LAN ports operating simultaneously. Each LAN port is
configured independently. Dependant upon the payload mode configured for the SDH port,
a reduced number of ports may be supported as below:
Figure 4.6 LAN port configurations
The LAN ports are presented as RJ-45 connectors on the rear panel of the MetroLAN and
the port assignment is shown below as the user faces the rear panel:
Payload Type Maximum No of LAN ports
AU-4/VC-4 1
AU-4/TUG-3/VC-3 3
AU-4/TUG-3/VC-12 8
2468
1357

QUICK START CONFIGURATION
15 76-02-059A
4 . 7. 1 LAN Port Configuration
Having selected the LAN port menu option from the data port menu, you will be prompted
for the port number, in the range 1 to 8, to configure. Once the required port number is
entered, the LAN port configuration menu will be displayed as below:
Figure 4.7 LAN port config menu screens
Note, that the LAN port configuration menu is an extended menu with two screens. Use the
less than "<" or greater than ">" keys to switch between the screens.
In order to configure the system for basic operation, only 4 parameters need to be configured
the rest may be left in their default state. However, for a more complex installation all
parameters may be required.
4.7.1.1 State
To enable any configuration of the selected LAN port it must first be placed in the DOWN
state. Once configuration has been completed and all parameters entered, the port state
must be changed to UP at which point the port will become operational and start to pass
traffic.
LAN PORT 2 LAN PORT 2
State Down J1/J2 transmit “ “
auto-Negotiation Enabled lIst allocation <display>
Flow control Enabled lcas statUs<display>
MDI/MDIX Auto counTers <menu>
maCaddress 0.0.0.0.0.0
fcs Generation Disabled
maXframe size 1536
gfp paylOad fcs Disabled
Allocation -
LCAS Enabled
max diff delaY32.000ms
RDI type 1 - bit
HIGHLIGHTED letter - select item
> - next page
<escape> - exit menu

QUICK START CONFIGURATION
16 76-02-059A
4.7.1.2 Allocation
Before any LAN traffic may be transported over SDH it must be allocated to the required
tributary containers. Dependant upon the payload type selected for the SDH port the options
are as follows:
Figure 4.8 LAN Allocation options
If more than a single VC-3 or VC-12 bandwidth is required, groups of tributaries may be
allocated using either comma or dash notation or combinations as shown below:
For VC-3 groups: 1,2 or 1-2
For VC-12 groups: 111, 112, 113 or 111-133, 211-233
When allocating tributaries, the comma notation 111, 112, 113 means allocate the three
tributaries, 111 and 112 and 113. Similarly the dash notation 111-113 means allocate the
three tributaries 111 and 112 and 113.
Once the required tributaries have been allocated, the port must be changed to the UP state
before traffic will pass.
Note1: klm notation is a shorthand way of identifying each of the possible 63 VC-12
containers within the STM-1 frame. k represents the TUG-3 number and has the range 1-3.
lrepresents the TUG-2 number and has the range 1-7 since there are 7 TUG-2 s in a TUG-
3. m represents the VC-12 within the TUG-2 and has the range 1-3 since each TUG-2
contains 3 VC-12s. Thus 111 is the first, and 373 is the last VC-12 in the STM-1 frame.
4.7.1.3 LCAS
Where tributaries have been grouped LCAS should be enabled to ensure correct operation
should a group member fail for any reason. LCAS should be disabled if only a single tributary
is used, or the remote equipment does not support LCAS.
4.7.1.4 Auto Negotiation
In most cases, Auto Negotiation may be enabled leaving the port to determine the speed and
duplex mode of the attached equipment. However, when connecting to Fast Ethernet ports,
which are fixed for 100M, e.g. Cisco equipment. Full Duplex operation, auto negotiation must
be disabled and the speed and duplex set manually.
Payload Type Allocation Options
AU-4/VC-4 VC-4
AU-4/TUG-3/VC-3 1,2,3
AU-4/TUG-3/VC-12 use klm notation to define the tributaries
See Note1below