Black Box LRU4240 User Manual
LRU4240
Dual Trunk E1 Router
User Guide
Software revision 2.3RT
Part 098-04240-18 Rev. 12
October 2003
TECHNICAL: 0118 96 56 000
SALES: 0870 90 10 750
FAX: 0118 96 55 001
ADDRESS: 464 Basingstoke Road, Reading, Berkshire RG2 0BG
WEB: www.blackbox.co.uk
Dual Trunk E1 Router
How to Contact Your Local Black Box
Austria: Sweden:
Black Box gmbh Black Box AB
Tel: 01 256 98 56 Tel: +46 8 44 55 870
Fax: 01 256 98 50-100 Fax: +46 8 38 04 30
Web Site: www.black-box.at Web Site: www.Blackbox.ab.se
France: Italy:
Black Box Catalogue Black Box Italia s.p.a.
Tel: 01 45 60 67 00 Tel: 02 27404 280
Fax: 01 45 60 67 47 Fax: 02 27400 219
Web Site: www.blackbox.fr Web Site: www.blackbox.it
Deutschland: Denmark:
Black Box Deutschland Black Box Denmark
Tel: 0811/5541-0 Tel: +45 5663 3010
Fax: 0811/5541-499 Fax: +45 5665 0805
Web Site: Web Site:
www.blackbox-deutschland.com Web Site: Web Site: www.blackbox.dk
Switzerland: Spain:
Black Box (Schweiz) AG Black Box Comunicaciones S.A.
Tel: 055 451 70 70 Tel: 91 659 0191
Fax: 055 451 70 75 Fax: 91 623 9784
Web Site: www.black-box.ch Web Site: www.blackbox.es
Netherlands: Belgium:
Black Box Datacom BV Black Box Communications S.A. N.V.
Tel: 03032417700 Tel: 02 725 85 50
Fax: 0302414746 Fax: 02 725 92 12
Web Site: www.blackbox.nl Web Site: www.blackbox.be
Norway: Finland:
Black Box Norge as. Black Box Finland Oy.
Tel: +47 55 300 700 Tel: +358 (0) 201 888 888
Fax: +47 55 300 701 Fax: +358 (0) 201 888 808
Web Site: www.blackboxnorge.no Web Site: www.blackbox.fi
U.S.A. : Chile:
Black Box Corporation Black Box Chile
Tel: 724-746-5500 Tel: 00 562 6680 141
Fax: 724-746-0746 Fax: 00 562 6680 140
Web Site: www.blackbox.com Web Site: www.Blackbox.cl
Brazil: Australia:
Black Box Do Brasil. Black Box Network Services Australia P/L
Tel: (011) 5515-4000 Tel: 03-9879-7100
Fax: (011) 5515-4002 Fax: 03-9870-2955
Web Site: www.blackbox.com.br Web Site: www.blackboxoz.com.au
ii SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
Copyright
ISO Compliance
Warning
Caution
Dual Trunk E1 Router
Copyright © 1998, BLACK BOX Ltd
World copyright reserved. No part of this publication may be stored in a retrieval system,
transmitted, or reproduced in any way, including but not limited to photocopy, photograph,
magnetic, chemical, or other record, without the prior agreement and written permission of
BLACK BOX Ltd.
Products Manufactured Under
An ISO 9001 Certified
Quality Management System
The Dual Trunk E1 Router complies with FCC Part 15 of the Federal Communications
Commission (FCC) Rules concerning radio frequency emissions for Class A computing
devices. The following section is required by the FCC.
In accordance with FCC Part 15 section 15.21, changes or modifications made by the buyer that
are not expressly approved by BLACK BOX Ltd could void the buyer’s authority to operate
this equipment.
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 his
own expense.
This Class A digital device meets all requirementsof the Canadian Interference-Causing
Equipment Regulations.
Cet Appareil numerique de la classe A respecte toutes les exigences du Reglement sur le
materiel brouilleur du Canada.
Dual Trunk E1 Router User’s Guide TECHNICAL: 0118 96 56 000 iii
Dual Trunk E1 Router
NOTE: As per the Voluntary Control Council for Interference by Information Technology
Equipment (VCCI), the Dual Trunk E1 Router complies with VCCI Class 1 ITE. This
equipment is in the 1st Class category (information equipment to be used in commercial and/or
industrial areas) and conforms to the standards set by the Voluntary Control Council for
Interference by Information Technology Equipment aimed at preventing radio interference in
commercial and/or industrial areas. Consequently, when used in a residential area or in an
adjacent area thereto, radio interference may be caused to radios and TV receivers, etc. Read
the instructions for correct handling.
Regulatory Information
The equipment complies with the following applicable European Directives 73/23/EEC,
89/336/EEC, 92/31/EEC, 93/68/EEC and 1995/5-EC.
Customer Information
The equipment complies with Part 68 of the FCC Rules. You will find the label located on the
bottom of the enclosure. This label contains the FCC Registration Number and Ringer
Equivalence Number (REN) for this equipment. You must, upon request, provide this
information to your telephone company.
Incidence of harm: If your telephone equipment causes harm to the telephone network, the
telephone company may discontinue your service temporarily. If possible, they will notify you
in advance. But if advance notice is not practical, you will be notified as soon as possible. You
will be informed of your right to file a complaint with the FCC.
Rights of the telephone company: Your telephone company may make changes in its facilities,
equipment, operations or procedures that could affect the proper functioning of your equipment.
If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted
telephone service.
Malfunction of the equipment: In the event this equipment should fail to operate properly,
disconnect the unit from the telephone line. Try using another FCC approved telephone in the
same telephone jack. If the trouble does not persist and appears to be with this unit, disconnect
the unit from the telephone line and discontinue use of the unit until it is repaired. Please note
that the telephone company may ask that you disconnect this equipment from the telephone
network until the problem has been corrected or until you’re sure that the equipment is not
malfunctioning.
iv SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
Dual Trunk E1 Router
Preface 9
Audience 9
Organization 9
Conventions 10
Symbols 10
Typography 11
Black Box Technical Support 11
Returning a Unit 12
Send Us Your Comments 12
Chapter 1, Product Overview 13
Product Overview 13
Applications 14
Dual independent links application 14
Load balancing 14
Redundancy 14
Multilink application 15
Redundancy 15
Monitoring the Entire WAN Protocol Stack 16
Monitoring Higher Protocol Layers 16
Chapter 2, Installation 17
Unpacking and Checking Equipment 17
Package Contents 17
Before You Install 17
Site Requirements 17
Installation 18
Installing the Dual Trunk E1 Router 18
Installation Using AC Power 18
Installation Using DC Power 19
Chapter 3, Terminal Setup 21
Navigating The Front Panel 21
Front Panel Display 23
Dual Trunk E1 Router User’s Guide
Default Display 23
The EFS Field 23
TECHNICAL: 0118 96 56 000 1
Dual Trunk E1 Router
The Configuration Options 23
The Test Options 24
To Stop a Test 25
The Monitor Options 25
Terminal User Interface Mode 25
Terminal Interface Navigation 26
Setting a Menu Parameter 26
Attaching to a Terminal 26
Using the Ethernet port as management interface 27
Using Terminal Software 27
Terminal Setup 27
Hyperterm Windows Setup 27
Logging On from a Terminal 30
Logging Off from a Terminal 31
Adjusting COMM Port Settings 31
Logging on from a Telnet Connection 31
Configuring Access Rights 32
Assigning User Passwords 32
Chapter 4, Access Configuration 33
Overview of Access Configuration 33
Configuring LAN Interface 35
Setting ID, Date, Time, and Network Timing 35
Unit Configuration− Menu 4A 35
Net Configuration and Status 37
Configuring Timeslot Allocations 37
Configuring WAN Protocol 38
Configuring Single Link PPP Interface 38
Configuring independent PPP links Interfaces 39
Configuring MLPPP Interface 39
Configuring PPP Protocol Parameters 39
Configuring single link Frame Relay 40
Configuring independent Frame Relay links 40
Configuring Multilink Frame Relay 40
Configuring Frame Relay DLCIs 40
Dynamic configuration (LMI) 40
Dual Trunk E1 Router User’s Guide
Manual DLCI configuration 41
TECHNICAL: 0118 96 56 000 2
Dual Trunk E1 Router
Mapping DLCIs to IP Addresses 41
Configuring SLIP 41
Configuring TUI Access Rights 42
Configuring Radius Authentication 42
Enabling/Disabling Traffic Monitoring 44
Configuring SNMP. 44
Configuring Time and Date Synchronization 45
Configuring DHCP 46
Chapter 5, Bridging Configuration 47
Overview of the Configuration 47
Bridging Configuration 47
Managing the unit in Bridging mode 48
VLAN Forwarding support 48
Management VLAN ID 48
Bridging Application Examples 48
WAN Gateway for IP VPN Application 48
Point-to-point LAN Extension 48
Multipoint Bridge example 48
Configuring Bridging 50
Configuring static MAC Bridge Routes 50
Displaying MAC to Port Map Table 51
Configuring the Firewall 52
52
Chapter 6, Routing Configuration 53
Overview of the Configuration 53
Configuring Routing Mode 54
Configuring Default Gateway 54
Configuring Static Routes 55
Load balancing over independent links 57
Configuring Dynamic Routing 57
Configuring NAT 57
NAT Configuration menus 58
Configuring NAT for single link ISP 59
Configuring NAT for Multihoming 60
Configuring NAT for Internet access and Frame Relay network 61
Dual Trunk E1 Router User’s Guide
Single link Internet Example 60
TECHNICAL: 0118 96 56 000 3
Dual Trunk E1 Router
Chapter 7, Firewall Configuration 63
Configuring the Firewall 63
64
Chapter 8, Diagnostics 65
Required Tools and Equipment 65
Performing Tests from the Front Panel 65
Self Test 65
Loopback Tests 66
Loop NET Test 66
Loop Payload Test 67
Loop Up Remote and Loop Down Remote Tests 67
Pattern Tests 68
QRW Pattern Test 68
Other Pattern Tests 68
Lamp Test 69
Performing Diagnostics from the Terminal 70
Menu-9 Diagnostics 70
Menu-9A Physical Layer Diagnostics 70
Performing a Test from Menu-9A Physical Layer Diagnostics 70
Performing Diagnostics From Telnet 70
Link Layer Diagnostics and Delay Monitoring 71
Link-based Testing for Public Packet Networks 72
Delay Monitoring for TCP/IP 72
Non-Disruptive Testing 72
Menu-9B—Link Layer Diagnostics 72
Chapter 9, Monitoring and Management 75
Monitoring and Management 75
Terminal User Interface Access Methods 76
Monitoring Performance 76
Displaying Performance Reports 76
Routing Monitoring 79
Dual Trunk E1 Router User’s Guide
Performance Report Menus 76
Performance Data Report Events 78
Event Log 78
TECHNICAL: 0118 96 56 000 4
Dual Trunk E1 Router
Delay Monitoring 79
Monitoring Status 80
Menu-1 Main Status 80
Main Status Fields 80
Clearing Error Counters 80
Menu-2 Data Status 80
In–band Management 80
In-band Network Registers, 24 Hour Detail 81
RMON-2 81
Protocol Directory 81
Protocol Distribution 82
Network Layer and Application Layer Host Tables 82
Network Layer and Application LayerMatrix Tables 83
Chapter 10, Alarms 85
Configuring Alarm Conditions 85
How Alarm Reports Are Displayed 85
Menu-8 Alarm 86
Menu-8A Alarm Configuration 86
Menu-8C Miscellaneous Management Configuration 86
Menu-8E Modem Initialization Strings 86
Chapter 11, Troubleshooting 87
Troubleshooting the Unit 87
Unit Problems 87
Network Problems 90
Appendix A, Specifications 95
Technical Specifications 95
Performance 95
LRU4240 Network Interface 95
LRU4240 Data Interface 95
Power Options 96
Physical 96
Environmental 96
Reliability 96
LRU4240 Diagnostics 96
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 5
Dual Trunk E1 Router
Dual Trunk E1 Router 98
99
Appendix B, Cable and Connector Pin Assignments 101
E1 Network Pin Assignments 101
Communication Port Pin Assignments 102
DE-9 to DB-25 Adapter Pin Assignments 102
102
Appendix C, Software Upgrade 103
Software Download 103
Using the Download Menu Utility 103
Setting Up for TFTP 103
Abnormal Termination 104
Error Indicators 104
Download Aborted by User 105
Programming software upgrades remotely 106
Software-Only Upgrades 107
Changing software 107
107
Appendix D, Menus 109
Appendix E, Router Command Line Interface Reference 137
Access To Router Command Line 137
Configuring the router automatically 137
Router Command Line Help 138
CLI Command Modes 140
Unit Command Reference 141
configure terminal 142
quit 142
show running-config 142
show unit id 142
e1 framing 143
e1 line-impedance 143
e1 timeslot 143
interface IFNAME icmp-redirect 143
interface IFNAME ip-addr 143
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 6
Dual Trunk E1 Router
interface enet 144
interface frame-relay dlci 144
interface frame-relay lmi 144
interface frame-relay map 145
interface frame-relay map clear 145
ip bridge static-route 145
ip dhcp-relay 145
ip firewall 145
ip nat 146
ip nat global 146
ip nat local-addr 146
ip nat static 146
ip route 146
ip route bridge-route-aging-time 147
ip route default-gateway 147
ip route load-balancing 147
ip route mode 147
ip route vlan-id 148
ip route vlan-priority 148
ip static-route clear 148
multilink 148
multilink mfr 148
multilink mlppp 148
t1 framing 148
t1 lbo 149
t1 timeslot 149
time-sync 149
time-zone 149
traffic monitoring 149
traffic type 150
unit alarm 150
unit ansi-fdl 150
unit clock 150
unit comm-port 150
unit id 150
unit idle-code 150
unit management 150
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 7
Dual Trunk E1 Router
unit modem 151
unit outage 151
unit protect-mode 151
unit radius 151
unit remote-comm 151
unit sla 151
unit snmp 151
unit yellow-alarm 151
wan-port in-service 151
Kernel Command Reference 152
interface IFNAME 152
quit 152
debug zebos events 152
debug zebos kernel 153
debug zebos packet 153
show debugging zebos 153
show interface IFNAME 153
show ip route 153
show running-config 154
RIP Command Reference 155
configure terminal 155
router rip 155
interface IFNAME 155
quit 155
debug rip 155
distance 156
ip rip receive-packet 156
ip rip receive version 156
ip rip send-packet 156
ip rip send version 157
ip rip send version 1-compatible 157
ip split-horizon 157
neighbor 158
network 158
passive-interface 158
route 158
router rip 159
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 8
Dual Trunk E1 Router
show debugging rip 159
show ip protocols 159
show running-config 160
show ip rip 160
timers 160
version 161
OSPF Command Reference 161
area authentication 161
area default-cost 162
area export-list 162
area import-list 162
area range 163
area shortcut 163
area stub 164
area virtual-link 164
auto-cost 165
compatible rfc1583 166
debug ospf event 166
debug ospf ism 166
debug ospf lsa 167
debug ospf nsm 167
debug ospf packet 168
debug ospf route 168
debug ospf zebos 168
default-information originate 169
default-metric 169
description 170
distance 170
distribute-list 170
ip ospf authentication 171
ip ospf authentication-key 171
ip ospf cost 172
ip ospf database-filter 172
ip ospf dead-interval 173
ip ospf hello-interval 173
ip ospf network 174
ip ospf priority 174
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 9
Dual Trunk E1 Router
ip ospf retransmit-interval 175
ip ospf transmit-delay 175
login 176
match interface 176
match metric 177
match route-type external 177
match tag 177
neighbor 178
network area 178
opaque 179
opaque-lsa-capable 179
ospf abr-type 180
ospf authentication-key 180
ospf cost 180
ospf dead-interval 181
ospf hello-interval 181
ospf network 182
ospf priority 182
ospf router-id 183
ospf transmit-delay 183
passive-interface 183
redistribute 184
refresh timer 184
router-id 185
router ospf 185
set metric-type 185
set next-hop 186
set tag 186
show debugging ospf 187
show ip ospf 187
show ip ospf border-routers 188
show ip ospf database 189
show ip ospf database asbr-summary 190
show ip ospf database external 190
show ip ospf database network 191
show ip ospf database opaque-area 192
show ip ospf database opaque-link 193
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 10
Dual Trunk E1 Router
show ip ospf database router 193
show ip ospf database summary 194
show ip ospf interface 195
show ip ospf neighbor 196
show ip ospf route 197
show ip protocols 198
show memory all 198
show memory lib 200
show memory ospf 201
summary-address 202
timers spf 202
Index 203
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 11
Dual Trunk E1 Router
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 12
Dual Trunk E1 Router
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 13
Dual Trunk E1 Router
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 14
Dual Trunk E1 Router
Dual Trunk E1 Router User’s Guide
TECHNICAL: 0118 96 56 000 15
E1 NTU with QoS User’s Guide
16 SALES:0870 90 10 750 Dual Trunk E1 Router User’s Guide
AUDIENCE
This Dual Trunk E1 Router User’s Guide is intended for network professionals who want
instructions for installing and configuring their digital service unit router.
ORGANIZATION
Chapter 1, “Product Overview,” provides a description of the features of the Dual Trunk
E1 Router, and its placement in a Wide Area Network.
Chapter 2, “Installation,” provides a description of the LRU4240, the components you
should have received in your shipping carton, and the hardware requirements for setting up
the LRU4240 in your network.
Chapter 3, “Terminal Setup,” provides instructions on connecting your device to a
terminal, logging on to the device; explains how to navigate the terminal screens and
configure your device to work with your network.
Chapter 4, “Access Configuration,” contains information about configuring the LAN and
WAN interfaces, the interface IP addresses, NMS IP addresses, Radius authentication,
DHCP, and miscellanous management settings.
Dula Trunk E1 Router
Preface
Chapter 5, “Bridging Configuration,” contains configuration procedures for bridging and
VLAN Bridging applications
Chapter 6, “Routing Configuration,” contains configuration procedures for static and
dynamic routing, and Network Address Translation (NAT)
Chapter 7, “Firewall Configuration,” contains configuration procedures for the firewall
access list
Chapter 8, “Diagnostics,” describes the E1 and in-band tests that can be used to verify the
operation of the device and its associated cabling and equipment.
Chapter 9, “Monitoring and Management,” describes how to monitor and manage the
LRU4240 router. Provides instructions on the option of collecting RMON-2 data.
Chapter 10, “Alarms,” describes alarm conditions and alarm configuration parameters.
Chapter 11, “Troubleshooting,” provides solutions to specific problems.
Appendix A, “Specifications,” provides regulatory compliance information, as well as the
electrical, physical, and networking characteristics.
Appendix B, “Cables and Connector Pin Assignments,” details connector and pin
assignments.
Appendix C, “Software Upgrade” software upgrades and download procedures.
Appendix D, “Menus,” details software menus command and parameters.
Dual Trunk E1 Router User’s Guide TECHNICAL: 0118 96 56 000 9
Dual Trunk E1 Router
Appendix E, “Router Command Line Interface Reference” details the router command line
interface commands and parameters
CONVENTIONS
This section describes the conventions used to delineate specific types of information
throughout Black Box user guides.
Symbols
Symbols denote text that requires special attention. The information contained alongside a
symbol corresponds to one of four levels of severity:
NOTE: Follow guidelines in this, or the previous, paragraph to use the Black
Box product more effectively.
CAUTION: Follow guidelines in this, or the previous, paragraph to avoid
equipment damage or faulty application.
WARNING: Follow the instructions in this, or the previous, paragraph to
avoid personal injury.
ELECTRO-STATIC DISCHARGE — CAUTION: Follow the instructions in this,
or the previous, paragraph to avoid the discharge of static electricity, and
subsequent damage to the equipment.
10 SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
Typography
Typeface or
Symbol
Dual Trunk E1 Router
This manual delineates the names of files, commands, and actions by using the fonts and
typefaces described in the following table:
Purpose Example
Courier
Font
AaBbCc123
Courier
Font, Bold
AaBbCc123
Palatino Font,
Italic
AaBbCc123
▼
Zapf Dingbats
Font
Palatino Font,
Bold Blue,
Underscore
AaBbCc123
Palatino Font,
Blue
AaBbCc123
or
AaBbCc123
Helvetica Bold Denotes actual markings on front or back
The names of commands, files, and
directories, as well as on-screen
computer output.
The input you provide, as contrasted with
on-screen computer output.
Keystrokes that you must provide to use
the application.
Command-line placeholder that you
replace with a real name or value.
Book titles, new words or terms, or
words that need to be emphasized.
Symbol that denotes a single-step
procedure or task. Procedures requiring
more than one task are numbered.
Hyperlinks in the table of contents.When
viewing the Portable Document Format
(PDF) version of the user guide, you can
click on one of these to jump directly to
the selected subject matter.
Hyperlinks throughout general text.
panels.
Edit your.login file.
Use ls -a to list all files.
machine_name% You have
mail.
machine_name% su
Press Ctrl-L to refresh the screen.
To delete a file, type rm filename
Refer to Chapter 6 in the User Guide.
These are called class options.
Yo u must be logged in as root to access
this directory.
Attach the cable to the TERMINAL port
BLACK BOX TECHNICAL SUPPORT
If you should experience difficulty with the setup and/or operation of your Black Box
equipment, the Black Box Technical Support staff can assist you at any time.
Telephone 0118 96 56 000
FAX 0118 96 55 001
Dual Trunk E1 Router User’s Guide TECHNICAL: 0118 96 56 000 11
Dual Trunk E1 Router
Internet www.blackbox.co.uk
RETURNING A UNIT
Use the following procedure if you need to return a unit for service or repair,
1. Contact the Black Box Customer Service Department at
0870 90 10 750, or fax a request to 0118 96 55 001 to obtain an ERN
(Equipment Returns Number) number.
2. Package the unit carefully and, before sealing the shipping carton, include any
information you can provide about the problems you are currently experiencing
with the unit.
3. Attach an address label to the shipping carton. Be sure to include the ERN
number:
Customer Service Department
Black Box
464 Basingstoke Road
Reading, Berkshire RG2 0BG
ERN # ___________
SEND US YOUR COMMENTS
Please let us know if this user guide meets your requirements.
Does the manual answer your questions?
Is the manual thorough?
Is the manual easy to use: can you find the information you need?
Is anything missing from the manual?
What would you like to see in the manual?
Black Box
FAX 0118 96 55 001
All suggestions and comments are appreciated.
12 SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
PRODUCT OVERVIEW
The Dual Trunk E1 Router is an intelligent network access solution providing connectivity to public
and private packet-based networks. Available as a standalone unit it integrates a dual CSU/DSU,
routing, and WAN Probe in one single platform.
Figure 1-1 Dual Trunk E1 Router
Dual Trunk E1 Router
Product Overview 1
The Dual Trunk E1 Router supports bridging, static routing, and dynamic routing RIP1, RIP2, and
OSPF. The two E1 links can be configured as either two independent PPP or Frame Relay links to
different destinations, or a single multilink connection (MLPPP or MLFR FRF.16 ) to one
destination for load balancing and link redundancy application. A firewall permits or denies access
based on source and destination IP addresses.
Configuration and troubleshooting is accessible to novice and advanced users with the availability
of a menu-based Terminal User Interface and an industry-standard Command Line Interface (CLI).
Complete router configuration can be automated remotely by downloading router configuration
files.
The Dual Trunk E1 Router is SNMP-manageable, offers menu-driven configuration, includes
comprehensive diagnostics, in-band management, and network performance monitoring (RMON1
and RMON2). These tools provide visibility on the usage of the WAN connections.
Dual Trunk E1 Router User’s Guide TECHNICAL: 0118 96 56 000 13
Dual Trunk E1 Router
APPLICATIONS
Dual independent links application
Load balancing
When multiple paths exist to the same destination, sending all IP packets on a single route is
probably not the most efficient use of the available bandwidth. Load balancing is the practice of
distributing traffic among multiple paths to the same destination to achieve higher throughput and
avoid delays.
The Dual E1 Trunk Router IP routing engine maintains a cost metric parameter with each route
learnt dynamically or programmed statically. If more than one route of equal cost is found for a
particular destination, the routing engine will distribute the packets equally among the available
routes using a round-robin algorithm.
If multiple routes are found with unequal costs then the route with lesser cost metric is chosen.
Redundancy
With multiple paths to the same destination, the routing engine also performs redundancy at both
the physical layer and the network layer. By monitoring the status of the physical link interface and
the PPP negotiation, the unit knows when a link is physically down or a PPP connection is down.
When either events occurs, the routing engine will balance traffic to the active link.
14 SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
Multilink application
Multilink PPP (MLPPP) or Multilink Frame Relay (MLFR) bundles the two E1 ports to pass traffic
at twice the speed of a single E1 link. The standard MLPPP per RFC1990 facilitates interoperability
with routers from other router vendors.
Dual Trunk E1 Router
A pair of Dual E1 Trunk Router can be deployed in a a back-to-back configuration offering a highspeed 4 Mbps point-to-point LAN extension.
Redundancy
With multilink, redundancy is performed at the link layer, if a link is down the traffic is still carried
over the active link. If a failed link comes back up again it is automatically added to the bundle, and
traffic resumes at twice the speed again.
Dual Trunk E1 Router User’s Guide TECHNICAL: 0118 96 56 000 1-15
Dual Trunk E1 Router
MONITORING THE ENTIRE WAN PROTOCOL STACK
With the Dual Trunk E1 Router you can monitor the entire WAN protocol stack. Higher level
protocols can be monitored using RMON-2. PPP connections can be monitored using RMON-1, and
the physical layer can be monitored using diagnostic capabilities as outlined in RFC 1406.
Monitoring Higher Protocol Layers
The Dual Trunk E1 Router includes RMON-2 capabilities. This lets you identify the Top Talkers
(256 greatest bandwidth users), and drill down to the Top Applications to see which applications are
using the most bandwidth. It also lets you track and report traffic sent between pairs of network
addresses and categorizes them by applications and protocols.
Ta b l e 1 - 2 lists the RMON tables supported in RMON-2.
Table 1-1 RMON-2 Tables
RMON-2
Protocol Directory
Network Layer Host
Protocol Distribution
Application Layer Host
Network layer matrix group
Application layer matrix group
Using the optional ChoiceView Plus software application, you can display the statistics gathered by
RMON-2.
Table 1-2 RMON Tables
RMON-1
(Provided with Level 2 & 3)
History Protocol Directory
Events Network Layer Host
Statistics Protocol Distribution
Alarms Application Layer Host
To take advantage of the Dual Trunk E1 Router’s RMON-2 capabilities, Black Box has created an
application, ChoiceView Plus, that allows you to display RMON-2 data in real-time, graphical, and
tabular formats.
16 SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
RMON-2
(Option for Level 2 & 3)
Installation 2
UNPACKING AND CHECKING EQUIPMENT
Before you begin the installation, you need to:
• Unpack and inspect the LRU4240 for damage that may have occurred during shipment
• Save all enclosed packing slips, documents, shipping cartons, and packing materials until you
have completed the installation and verified the unit’s operation
Package Contents
Make sure that you have received all the items ordered.
• LRU4240 Dual Trunk E1 Router
• A User Guide
BEFORE YOU INSTALL
Dual Trunk E1 Router
Dual Trunk E1 Router operation requires the proper data port, com port and network cables. If you
don’t have the correct cables, they may be ordered by calling Black Box at (0118) 965-5100 and
asking for Inside Sales, or you may order from the Black Box Online Store on our web site:
www.blackbox.co.uk.
SITE REQUIREMENTS
Install the LRU4240 in accordance with the National Electric Code, ANSI/NFPA 70, Articles 11016, 110-17, and 110-18. This code defines an access area such as a dedicated equipment room or
closet that is clean, well-ventilated, and free of environmental extremes. Allow .5 - 1.0 m (2-3 feet)
of clearance around the unit for access during installation.
The operating environment of the LRU4240 is shown in Tab le .
Table 2-1 Site Environmental Requirements
Item Specification
Operating Temperature 0°C to 50°C (32°F to 122°F) ambient
Storage Temperature -20°C to +60°C (-4°F to 140°F)
Relative Humidity 0% to 95% noncondensing
Maximum Altitude 4.6 km (15,000 ft)
Dual Trunk E1 Router User’s Guide TECHNICAL: 0118 96 56 000 17
Dual Trunk E1 Router
Do no
Voltages as high as 200 VDC may exist at the telephone company’s E1 interface in
the form of simplex power. These voltages are hazardous and can cause death or
severe injury! Do not proceed with this installation if any voltage is present between
the send and receive pairs of the network interface. You can ask the serving telephone
company to temporarily disconnect the simplex power during installation.
INSTALLATION
The following procedures outline the steps necessary to install the Dual Trunk E1 Router, power the
device, and attach it to a terminal.
Installing the Dual Trunk E1 Router
The Dual Trunk E1 Router should be installed on a flat, stable surface or mounted on a tray.
To install the Dual Trunk E1 Router on a flat surface:
1. Remove the covering from the four stick-on rubber pads and attach them to the bottom
of the unit.
2. Place the unit on a flat, stable surface.
You may stack other units on top of the Dual Trunk E1 Router.
Installation Using AC Power
To install the Dual Trunk E1 Router using AC power, follow the step below and refer to Figure 2-1:
Insert the power cable into the power receptacle on the Dual Trunk E1 Router rear panel. Connect
the other end to the AC outlet.
The LEDs on the front panel flash and status messages appear on the alphanumeric display as the
Dual Trunk E1 Router runs the Self Test at power up.
NOTE: DC Power may be used as a primary power source or as a backup
power source, should AC power fail.
18 SALES: 0870 90 10 750 Dual Trunk E1 Router User’s Guide
Loading...