Express 5110
Frame Relay Service Unit
User Manual
1202130L2 Express 5110 w/built-in DSU
61202130L2-1A
November 1999
This product includes software developed by the University of California, Berkeley,
and its contributors.
901 Explorer Boulevard
P.O. Box 140000
Huntsville, AL 35814-4000
Phone: (256) 963-8000
© 1999 ADTRAN, Inc.
All rights reserved.
Printed in USA.
About This Manual
This manual is arranged so you can quickly and easily find the information you need.
The following is an overview of the contents of this manual:
• Chapter 1, Introduction, familiarizes you with frame relay networks and Express
5110 highlights. The chapter also gives a brief explanation of options that may be
purchased for use with the Express 5110.
• Chapter 2, Installation, describes the Express 5110 connectors (pin assignments are
given in Appendix A) and provides an installation diagram.
• Chapter 3, Operation, explains how to operate your Express 5110 using either the
front panel or a VT 100 terminal interface.
• Chapter 4, Applications, provides examples of some common Express 5110 applications. This chapter includes network diagrams as well as configuration tables
for each example.
• Chapter 5, Configuration Overview, explains how to access the Express 5110 Configuration menu and provides menu trees for both the front panel and the VT 100
interface.
• Chapters 6 through 9 provide brief explanations for selections made in the Configuration menus. These chapters are based on the first level menu branches of
the Configuration menu: DTE Ports 1 and 2, Network Port, IP Routing, and System configuration.
• Chapter 10, Statistics, describes how to access statistics information from the
Express 5110.
• Chapter 11, Diagnostics, explains how to access the Express 5110 diagnostic features, including Ping, and Loopback Tests.
• Appendix A provides pinouts for the Express 5110 connectors.
• Appendix B contains product specifications.
61202130L2-1 Express 5110 User Manual iii
Notes provide additional useful information.
Cautions signify informat ion that could prevent s ervice interruption.
Warnings provide information that could prevent damage to the
equipment or endangerment to hum a n life.
iv Express 5110 User Manual 61202130L2-1
Important Safety Instructions
Save These Instructions
When using your telephone equipment, please follow these basic safety precautions
to reduce the risk of fire, electrical shock, or personal injury:
1. Do not use this product near water, such as near a bath tub, wash bowl, kitchen
sink, laundry tub, in a wet basement, or near a swimming pool.
2. Avoid using a telephone (other than a cordless-type) during an electrical storm.
There is a remote risk of shock from lightning.
3. Do not use the telephone to report a gas leak in the vicinity of the leak.
4. Use only the power cord, power supply, and/or batteries indicated in the manual.
Do not dispose of batteries in a fire. They may explode. Check with local codes
for special disposal instructions.
ADTRAN Year 2000 (Y2K) Readin ess Disclosure
ADTRAN has established a Year 2000 program to ensure that our products will correctly function in the new millennium. ADTRAN warrants that all products meet Year
2000 specifications regardless of model or revision. Information about ADTRAN's
Year 2000 compliance program is available at the following:
Product Matrix: www.adtran.com/y2kfax.html
E-mail: year2000@adtran.com
Faxback Document Line: (256) 963-8200
Y2K plans and product certifications are listed in the Product Matrix (see above)
Y2K Project Line: (256) 963-2200
61202130L2-1 Express 5110 User Manual v
FCC regulations require that the following information be provided in this manual:
1. This equipment complies with Part 68 of FCC rules. On the bottom of the equipment housing is a label showing the FCC registrat ion number and ringer equivalence number (REN) for this equipment. If requested, provide this information to
the telephone company.
2. If this equipment causes harm to the telephone network, the telephone company
may temporarily discontinue service. If possible, adva nce notification is given;
otherwise, notification is given as soon as possible. The telephone company will
advise the customer of the right to file a complaint with the FCC.
3. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the proper operation of this equipment.
Advance notification and the opportunity to maintain uninterrupted service are
given.
4. If experiencing difficulty with this equipment, please contact ADTRAN for repair
and warranty information. The telephone company may require this equipment
to be disconnected from the network until the problem is corrected or it is certain
the equipment is not malfunctioning.
5. This unit contains no user-serviceable parts.
6. An FCC compliant telephone cord with a modular plug is provided with this
equipment. This equipment is designed to be connected to the telephone netw ork
or premises wiring using an FCC compatible modular jack, which is Part 68 compliant.
7. The following information may be required when applying to the local telephone
company for a dial-up line for the V.34 modem:
Service Type Digital Facility
Interface Code
Service Order
Code
Network
Jacks
56 kbps Digital Interface 04DU5-56 6.0F RJ-48S
64 kbps Digital Interface 04DU5-64 6.0F RJ-48S
8. In the event of equipment malfunction, all repairs should be performed by ADTRAN. It is the responsibility of users requiring service to report the need for service to their distributor or ADTRAN. See the inside back cover of this manual for
information on contacting ADTRAN for service.
vi Express 5110 User Manual 61202130L2-1
Federal Communications Commission
Radio Frequency Interference Statement
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 ar e designed to provide
reasonable protection against ha rmful interference w hen 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 frequencies. 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.
Shielded cables must be used with this unit to ensure compliance with
Class A FCC limits.
Changes or modifications to this unit not expressly approved by the
party responsible for compliance could void the user's authority to
operate the equipment.
Canadian Emissions Requirements
This digital apparatus does not exceed the Class A limits for radio noise emissions
from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of the Department of Communications.
Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux
appareils numeriques de Class A prescrites dans la norme sur le materiel brouilleur:
“Appareils Numeriques,” NMB-003 edictee par le ministre des Communications.
61202130L2-1 Express 5110 User Manual vii
Canadian Equipment Limitations
Notice: The Canadian Industry and Science Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications
network protective, operational, and safety requirements. The Department does not
guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be con nected to the facilities of the local telecommunications company. The equipment must
also be installed using an acceptable methods of connection. In some cases, the company’s inside wiring associated with a single line individual service may be extended
by means of a certified connector assembly (telephone extension cord). The customer
should be aware that compliance with the above limitations may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user
to this equipment, or equipment malfunctions , may give the telecommunications
company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical gr oun d co nnection s of
the power utility, telephone lines and internal metallic water pipe system, if present,
are connected together. This precaution may be particularly important in rural areas.
Users should not attempt to make such connec tions themselves, but
should contract the appropriate electric inspection authority, or an electrician, as appropriate.
The Load Number (LN) assigned to each terminal device denotes the percentage of
the total load to be connected to a telephone loop which is used by the device, to prevent overloading. The termination on a loop may consist of a ny c ombination of
devices subject only to the requirement that the total of the Load Numbers of all
devices does not exceed 100.
viii Express 5110 User Manual 61202130L2-1
Warranty and Customer Service
ADTRAN will replace or repair this product within five years from the date of shipment if it does not meet its published specifications or fails while in service. For
detailed warranty, repair, and return information refer to the ADTRAN Equipment
Warranty and Repair and Return Policy Procedure.
Return Material Authorization (RMA) is required prior to returning equipment to
ADTRAN.
For service, RMA requests, or further information, contact one of the numbers listed
on the inside back cover of this manual.
61202130L2-1 Express 5110 User Manual ix
x Express 5110 User Manual 61202130L2-1
Table of Contents
Chapter 1. Introduction.....................................................................................................1-1
Understanding Frame Relay ..............................................................................................1-1
Product overview ................................................................................................................ 1-2
DDS Operation ....................................................................................................................1-3
SNMP Management ............................................................................................................1-3
Chapter 2. Installation....................................................................................................... 2-1
Unpack, Inspect, Power Up ............................................................................................... 2-1
Receiving Inspection.......................................... ..... ...... .................................. ...... ..... ...2-1
ADTRAN Shipments Include .............................................................................2-1
Customer Provides ...............................................................................................2-1
Power Up........................................................................................................................2-2
Rear Panel .............................................................................................................................2-2
DCE Connector..............................................................................................................2-2
DTE Connectors ............................................................................................................2-2
Telco Connector.............................................................................................................2-4
Control Port ............................................................................................... ...... ...... ........ 2-4
Chapter 3. Operation .........................................................................................................3-1
Front Panel ...........................................................................................................................3-1
LCD Window ........................................................................................................3-1
Enter ........................................................................................................................3-1
Numeric Keypad ...................................................................................................3-1
Shift ......................................................................................................................... 3-1
Cancel ..................................................................................................................... 3-2
Up and Down Arrows .......................................................................................... 3-2
Next, Prev, Add, Del ............................................................................................3-2
LED Descriptions ..................................................................................................3-2
TD1: Transmit Data (DTE 1) .......................................................................3-2
RD1: Receive Data (DTE 1) ..........................................................................3-2
61202130L2-1 Express 5110 User Manual xi
Table of Contents
TD2: Transmit Data (DTE 2) ........................................................................3-2
RD2: Receive Data (DTE 2) ..........................................................................3-2
TDN: Transmit Data (Network) .................................................................3 -3
RDN: Receive Data (Network) ....................................................................3-3
ALM/TST: Alarm/Test) ..............................................................................3-3
Front Panel Operation..................................................................................................3-3
VT 100 Terminal Connection and Operation............................................................3-4
Express 5110 Menu Structure ............................................................................................3-6
Main Menu.....................................................................................................................3-6
Configuration (CONFIG) ..............................................................................3-6
View Statistics (STATS) ................................................... ...... ...... ..................3-6
Diagnostics (DIAG) .......................................................................................3-6
Save Configuration (SAVE) ..........................................................................3-7
Abort Changes (ABORT) ..............................................................................3-7
Logout (VT 100 menu only) .........................................................................3-7
Chapter 4. Applications.....................................................................................................4-1
SNA/SDLC with Local Spoofing ......................................................................................4-1
SNA and LAN Application with SNMP/Telnet Management..............................4 -4
Bisync Application........................................................................................................4-7
Transparent Application............................................................................................4-10
Chapter 5. Configuration Overview...............................................................................5-1
Local and Remote Configuration ......................................................................................5-1
Chapter 6. DTE Port Configuration................................................................................6-1
Port Disabled Protocol (DISABLED)..........................................................................6-3
Physical Layer Options ........................................................................................6-3
Protocol Options ...................................................................................................6-3
Protocol Address Table (ADDRESS TABLE) ....................................................6-3
Frame Relay Protocol....................................................................................................6-3
Physical Layer Options ........................................................................................6-4
Interface Type (CONN) ............................................. ..... ..............................6-4
Synchronous Bit Rate (RATE) ......................................................................6-4
Synchronous Idle Method (IDLE) ...............................................................6-4
Hardware Flow Control (HDW FLOW CTRL) ......................................... 6 -4
Protocol Options ...................................................................................................6-6
Signaling Type (SIGNAL) .............................................................................6-6
T392 .................................................................................................................. 6-6
N392 and N393 ...............................................................................................6-6
Guidelines for Configuring IP Addr, Subnet Mask, and Mng DLCI ..... 6-6
xii Express 5110 User Manual 61202130L2-1
Table of Contents
IP Address (IP ADDR) ..................................................................................6-7
IP Subnet Mask ..............................................................................................6-7
Management DLCI (MNG DLCI) ............................................................... 6-7
Protocol Address Table ........................................................................................6-7
DTE Port DLCI (PRT DLCI) .........................................................................6-7
Network DLCI (NET DLCI) ......................................................................... 6-7
Edit Next Entry (NEXT key on front panel) ..............................................6-7
Edit Previous Entry (PREV key on front panel) ........................................ 6-7
Delete This Entry (DEL key on front panel) ..............................................6-8
Add New Entry (ADD key on front panel) ...............................................6-8
SDLC Protocol...............................................................................................................6-8
Physical Layer Options ........................................................................................6-8
Interface Type (CONN) ............................................................ ....................6-8
Synchronous Bit Rate (RATE) ......................................................................6-9
Synchronous Idle Method (IDLE) ............................................................ ...6-9
Hardware Flow Control (HDW FLOW CTRL) .........................................6-9
Protocol Options .................................................................................................6-11
Data Format (FORMAT) .............................................................................6-11
Poll/Response Timeout (TIMEOUT) ...................................... ...... ...... ...... 6-11
Minimum Poll Timer ...................................................................................6-11
Slow Poll Ratio (POLL RAT) ......................................................................6-11
Response Timer Threshold (THRESHOLD) ............................................6-11
Transmit Delay (DELAY) ...........................................................................6-11
Protocol Address Table ......................................................................................6-11
PU Address (PU ADDR) ............................................................................6-11
Group Address (GROUP ADDR) ..............................................................6-12
LLC2 SSAP (LLC SSAP) ..............................................................................6-12
LLC2 DSAP (LLC DSAP) ............................................................................6-12
Outgoing DLCI (OUT DLCI) .....................................................................6-12
Edit Next Entry (NEXT on front panel) ....................................................6-12
Edit Previous Entry (PREV on front panel) ............................................. 6-12
Delete This Entry (DEL on front panel) ....................................................6-12
Add New Entry (ADD on front panel) ..................................................... 6-12
Transparent BOP (TRANS BOP)...............................................................................6-13
Physical Layer Options ......................................................................................6-14
Interface Type (CONN) ............................................................ ..................6-14
Synchronous Bit Rate (RATE) ....................................................................6-14
Synchronous Idle Method (IDLE) ............................................................ .6-14
Hardware Flow Control (HDW FLOW CTRL) .......................................6-14
Protocol Options .................................................................................................6-14
Protocol Address Table ......................................................................................6-14
61202130L2-1 E xpres s 5110 User Manual xiii
Table of Contents
Far End Port Number (FE PORT) ..............................................................6-14
Outgoing DLCI (OUT DLCI) .....................................................................6-14
Bisync Protocol............................................................................................................6-15
Physical Layer Options ......................................................................................6-16
Interface Type (CONN) ............................................. ..... ............................6-16
Synchronous Bit Rate (RATE) ....................................................................6-16
Synchronous Idle Method (IDLE) .............................................................6-16
Hardware Flow Control (HDW FLOW CTRL) ....................................... 6-16
Protocol Options .................................................................................................6-16
Emulation Type (EMUL TYPE) .................................................................6-16
Line Type (LINE) .........................................................................................6-16
Translation Code ..........................................................................................6-16
Data Format (FORMAT) .............................................................................6-16
Poll/Response Timeout (TIMEOUT) ........................................................6-17
Poll/Response Timer Threshold (THRESHOLD) ...................................6-17
Slow Poll Ratio <N:1> (POLL RAT) ..........................................................6-17
Protocol Address Table ......................................................................................6-17
Unit Address (UNIT ADDR) ...................................................................... 6-17
LLC2 SSAP (LLC SSAP) ..............................................................................6-17
LLC2 DSAP (LLC DSAP) ............................................................................6-17
Outgoing DLCI (OUT DLCI) .....................................................................6-17
Edit Next Entry (NEXT key on front panel) ............................................6-18
Edit Previous Entry (PREV key on front panel) ......................................6-18
Delete This Entry (DEL key on front panel) ............................................ 6-18
Add New Entry (ADD key on front panel) .............................................6-18
Transparent Async Protocol (TRANS ASYNC)......................................................6-19
Physical Layer Options ......................................................................................6-20
Interface Type (CONN) ............................................. ..... ............................6-20
Asynchronous Bit Rate (BIT RATE) ..........................................................6-20
Data Bits ........................................................................................................6-20
Parity ..............................................................................................................6-20
Stop Bits .........................................................................................................6-20
Hardware Flow Control (HDW FLOW CTRL) ....................................... 6-20
Protocol Options .................................................................................................6-20
Protocol Address Table ......................................................................................6-21
Far End Port Number (FE PORT) ..............................................................6-21
Outgoing DLCI (OUT DLCI) .....................................................................6-21
PPP Synchronous Protocol (PPP SYNC)..................................................................6-21
Routing .................................................................................................................6-21
Physical Layer Options ......................................................................................6-23
Interface Type (CONN) ............................................. ..... ............................6-23
xiv Express 5110 User Manual 61202130L2-1
Table of Contents
Synchronous Bit Rate (RATE) ....................................................................6-23
Synchronous Idle Method (IDLE) ............................................................ .6-23
Hardware Flow Control (HDW FLOW CTRL) .......................................6-23
Protocol Options .................................................................................................6-23
Protocol Address Table ......................................................................................6-23
IP Address (IP ADDR) ................................................................................6-23
Subnet Mask .................................................................................................6-23
Peer IP Address (PEER IP) .........................................................................6-23
Transmit RIP Requests (TX RIP) ................................................................6-23
Reply to RIP Requests (RIP REPLY) .........................................................6-24
PPP Async Protocol ....................................................................................................6-24
Routing ................................................................................................................. 6-24
Physical Layer Options ......................................................................................6-24
Interface Type (CONN) ............................................................ ..................6-24
Asynchronous Bit Rate (BIT RATE) .......................................................... 6-24
Data Bits ........................................................................................................6-24
Parity .............................................................................................................6-25
Stop Bits ........................................................................................................6-25
Hardware Flow Control (HDW FLOW CTRL) .......................................6-25
Protocol Options .................................................................................................6-26
Protocol Address Table ......................................................................................6-26
IP Address (IP ADDR) ................................................................................6-26
Subnet Mask .................................................................................................6-26
Peer IP Address (PEER IP) .........................................................................6-26
Transmit RIP Requests (TX RIP) ................................................................6-26
Reply to RIP Requests (RIP REPLY) .........................................................6-26
Slip Protocol.................................................................................................................6-26
Routing ................................................................................................................. 6-26
Physical Layer Options ......................................................................................6-27
Interface Type (CONN) ............................................................ ..................6-27
Asynchronous Bit Rate (BIT RATE) .......................................................... 6-27
Data Bits ........................................................................................................6-27
Parity .............................................................................................................6-27
Stop Bits ........................................................................................................6-27
Hardware Flow Control (HDW FLOW CTRL) .......................................6-27
Protocol Options .................................................................................................6-28
Protocol Address Table ......................................................................................6-28
IP Address (IP ADDR) ................................................................................6-28
Subnet Mask .................................................................................................6-29
Peer IP Address (PEER IP) .........................................................................6-29
Transmit RIP Requests (TX RIP) ................................................................6-29
61202130L2-1 E xpres s 5110 User Manual xv
Table of Contents
Reply to RIP Requests (RIP REPLY) .........................................................6-29
Chapter 7. Configuring the Network Port.....................................................................7-1
Network port ........................................................................................................................7-1
Connection .............................................................................................................7-2
Interface Type (INT TYPE) ................................ ...... ..... .................................. ...... ...... .7-3
Physical Layer Options (PHYS LYR OPT) ........................................................7-3
Loop Rate ........................................................................................................7-3
Clock Source ...................................................................................................7-4
Bit Rate ............................................................................................................7-4
Frame Relay Options (FR OPT)..................................................... ...... ...... ..................7-4
Signaling Type (SIGNAL) .............................................................................7-5
T391 .................................................................................................................. 7-5
N391 ................................................................................................................. 7-5
N392 and N393 ...............................................................................................7-5
Remote FECN Notification (RFECN) .......................................................... 7 -5
LLC2 Options (LLC2 OPT) ..........................................................................................7-6
LLC2 ACK Timeout (ACK TO) ....................................................................7-6
LLC2 N2 Retry Counter (N2 RETRY) .........................................................7-6
LLC2 k Window Size (WND SIZE) .............................................................7-6
LLC2 Poll Timeout (POLL TO) ....................................................................7-6
LLC2 Busy Timeout (BUSY TO) ..................................................................7-6
LLC2 Reject Timeout (REJECT TO) .............................................................7-6
LLC2 Keep-Alive Timeout (KA TO) ...........................................................7-6
Local IP Address (LOCAL IP ADDR)........................................................................7-7
Subnet Mask...................................................................................................................7-7
Transmit RIP Requests (XMIT RIP)............................................................................7-7
Process Received RIP Packets......................................................................................7-7
Priority Queue Ration (N:1).........................................................................................7-8
Chapter 8. IP Routing ........................................................................................................8-1
IP routing WITH THE Express 5110 .................................................................................8-1
IP Route Table................................................................................................................8-3
Example Route Table Entry .................................................................................8-4
IP Address (IP ADDR) ..................................................................................8-4
Destination Port (DST PORT) ......................................................................8-4
Destination DLCI (DST DLCI) .....................................................................8-4
Edit Next Entry (NEXT Key on Front Panel) .............................................8-4
Edit Previous Entry (PREV Key on Front Panel) ......................................8-4
Delete This Entry (DEL Key on Front Panel) .............................................8-4
Add New Entry (ADD Key on Front Panel) ..............................................8-4
xvi Express 5110 User Manual 61202130L2-1
Table of Contents
Gateway IP Address (GW IP ADD)...........................................................................8-5
Gateway Port (GW PORT)........................................................................................... 8-5
Gateway DLCI (GW DLCI) .........................................................................................8-5
Transmit ARP Requests (TX ARP) .............................................................................8-5
Process Received ARP Packets (RX ARP) .................................................................8-5
ARP Refresh Time (ARP REF).....................................................................................8-5
Chapter 9. System Configuration....................................................................................9-1
System Config ......................................................................................................................9-1
Change Password .................................. .................................. ...... ...... .........................9-2
Read Community (RD COM)...................................................................................... 9-2
Write Community (WR COM)....................................................................................9-2
Trap Manager DLCI (TRAP DLCI) ............................................................................9-2
Trap Manager IP Address (TRAP IP ADDR)............................................................9-2
Trap Manager Port (TRAP PORT).............................................................................. 9-2
Support Fragmentation (SUPPORT FRAG)..............................................................9-2
Chapter 10. Statistics........................................................................................................10-1
Viewing Statistical Information with the VT 100 Interface...................................10-1
DTE and Network Port Statistics..............................................................................10-2
Current Statistics .................................................................................................10-2
Leads On .......................................................................................................10-2
Total .............................................................................................................10-2
Errors ............................................................................................................. 10-2
Signal Statistics .............................................................................................10-4
DLCI Statistics ............................................................................................................. 10-6
Protocol Statistics........................................................................................................10-7
Hot Keys.......................................................................................................................10-8
ESC .................................................................................................................10-8
DLCI Stats (D) ..............................................................................................10-8
Protocol Stats (P) - DTE and Network Port Menus only .......................10-8
Current Stats (C) ..........................................................................................10-8
Freeze Stats (F) .............................................................................................10-8
Viewing Statistical Information with the Front Panel Interface........................... 10-8
Statistics Available for DTE and Network Ports ............................................10-8
Control Signal Status Screen ......................................................................10-9
Frames In ......................................................................................................10-9
Frames Out ...................................................................................................10-9
Errored Frames ............................. .................................. ...... ..... ..................10-9
Overrun Errors .............................................................................................10-9
DCD Loss Errors ..........................................................................................10-9
61202130L2-1 Express 5110 User Manual xvii
Table of Contents
CRC Errors ............................................ ...... ..... .................................. ...... .....10-9
Abort Frames ................................................................................................10-9
Sync Frame Errors ......................................................................................10-10
Statistics Available Only for the Network Port ............................................10-10
Signal State ..................................................................................................10-10
Signal Timeouts ..........................................................................................10-10
Signal Errors ...............................................................................................10-10
System Statistics ................................................................................................10-10
Chapter 11. Diagnostics...................................................................................................11-1
Diagnostics ......................................................................................................................... 11-1
Ping................................................................................................................................11-2
Address to Ping (PING ADDRESS) ..................................................................11-2
Start Ping ..............................................................................................................11-2
Pings Sent ......................................................................................................11-2
Responses ...................................................................................................... 11-2
Min Time .......................................................................................................11-3
Max Time ......................................................................................................11-3
Avg Time .......................................................................................................11-3
xviii Express 5110 User Manual 61202130L2-1
List of Figures
Figure 2-1. Express 5110 Rear View .................................................................................2-3
Figure 3-1. Example of Basic Menu Travel......................................................................3-4
Figure 3-2. Terminal Login Menu..................................................................................... 3-5
Figure 3-3. Terminal Main Menu...................................... ...... .................................. ..... ...3-5
Figure 3-4. Express 5110 Front Panel ...............................................................................3-9
Figure 4-1. SNA /SDLC with Local Spoofing................................................................4-2
Figure 4-2. SNA and LAN Application with SNMP/Telnet Management................ 4-5
Figure 4-3. Bisync Point-to-Point .....................................................................................4-7
Figure 4-4. Bisync Multi-Point..........................................................................................4-8
Figure 4-5. Transparent BOP Application.....................................................................4-10
Figure 4-6. Transparent Async Application...................................................................4-11
Figure 5-1. VT 100 Configuration Menu.........................................................................5-2
Figure 5-2. Front Panel Configuration Menu Tree......................................................... 5-3
Figure 5-3. VT 100 Configuration Menu Tree.................................................................5-5
Figure 6-1. VT 100 Port Configuration Menu.................................................................6-1
Figure 6-2. Front Panel Protocol Menu Tree...................................................................6-2
Figure 6-3. Port Disabled Menu Tree...............................................................................6-3
Figure 6-4. Frame Relay Protocol Menu Tree .................................................................6-5
Figure 6-5. SDLC Protocol Menu Tree ...........................................................................6-10
Figure 6-6. Transparent BOP Menu Tree .......................................................................6-13
Figure 6-7. Bisync Protocol Menu Tree..........................................................................6-15
Figure 6-8. Transparent Async Protocol Menu Tree ....................................................6 -19
Figure 6-9. PPP Synchronous Protocol Menu Tree ...................................................... 6-22
Figure 6-10.PPP Asynchronous Protocol Menu Tree....................................................6-25
Figure 6-11. Slip Protocol Menu Tree...............................................................................6 -28
Figure 7-1. Network Port Configuration Menu Tree.....................................................7-2
61202130L2-1 E xpres s 5110 User Manual xix
List of Figures
Figure 7-2. VT 100 Network Port Configuration Menu................................................7-3
Figure 7-3. VT 100 Network Port Frame Relay Options Menu....................................7-4
Figure 7-4. VT 100 Network Port LLC2 Options Menu................................................7-7
Figure 8-1. VT 100 IP Route Menu...................................................................................8-2
Figure 8-2. IP Routing Table Menu ..................................................................................8-3
Figure 9-1. System Configuration Menu.........................................................................9-1
Figure 10-1. View Statistics Menu....................................................................................10-1
Figure 10-2. DTE Port Statistics Menu-Frame Relay Protocol......................................10-4
Figure 10-3. DTE Port Statistics Menu-Transparent Async Protocol...........................10-5
Figure 10-4. DTE Port Statistics Menu-All Other Protocols.........................................10-5
Figure 10-5. Network Port View Statistics Menu...........................................................10-6
Figure 10-6. View DLCI Statistics Menu-Network Port and Frame Relay
Protocol Only......................................................................................................................10-7
Figure 10-7. Protocol Statistics Menu...............................................................................10-7
Figure 10-8. Control Signal Status Screen ......................................................................10-9
Figure 10-9. Signal State Screen.....................................................................................10-10
Figure 10-10. System Statistics Screen...........................................................................10-10
Figure 11-1. VT 100 Test Menu..........................................................................................11-1
Figure 11-2. Front Panel Test Menu..................................................................................11-2
Figure 11-3. VT 100 Ping Menu ........................................................................................11-3
xx Express 5110 User Manual 61202130L2-1
List of Tables
Table 4-1. Configuration Settings for SNA/SDLC Application ................................4-3
Table 4-2. Configuration Settings for SNA and LAN Application............................4-6
Table 4-3. Configuration Settings for Multi-Point Bisync Application..................... 4-9
Table 4-4. Configuration Settings for Transparent BOP Application.....................4-11
Table 4-5. Configuration Settings for Transparent Async Application..................4-12
Table A-1. DTE/DCE Connector Pin Assignments.....................................................A-2
Table A-2. Telco Connector Pin Assignments ..............................................................A-3
Table A-3. Control Connector Pin Assignments..........................................................A-3
61202130L2-1 Express 5110 User Manual xxi
List of Tables
xxii Express 5110 User Manual 6120213 0L2-1
Chapter 1
Introduction
UNDERSTANDING FRAME RELAY
Frame relay is a wide area network (WAN) service designed to
minimize physical connections. This is accomplished by using
virtual connections within the frame relay cloud and accessing
these virtual circuits with normally one physical connection at each
location to the frame relay service. Virtual circuits are addressed
using header information at the beginning of each frame. These
frames are formatted by the user's CPE equipment such as the
ADTRAN Express 5110.
ANSI standards describe how each frame must be constructed to
provide interoperability between CPE equipment and frame relay
switching equipment. Each frame must contain a header, at least
one byte of information data, two bytes of CRC16, and a trailing
flag 0x7E.
This header information contains a virtual circuit addr ess known as
a DLCI (data link connection identifier). The header information
also contains bits used for network congestion control.
Frame relay virtual circuits may be defined as permanent (PVC) or
switched (SVC). PVCs have the same DLCI for a given path each
time a user protocol session is established. The network service
provider assigns these DLCIs at subscription time. SVCs, on the
other hand, have DLCIs dynamically assigned each time a user
protocol session is established. The CPE equipment must request a
call and the DLCI is assigned by the network switching equipment.
61202130L2-1 Express 5110 User Manual 1-1
Chapter 1. Introduction
This DLCI is valid until the call is disconnected and may be
assigned a different value each time a call is requested.
PRODUCT OVERVIEW
The Express 5110 provides a low cost solution for the CPE
equipment in a private or public frame relay network. The Express
5110 connects to the frame relay network via 56/64k DDS (digital
data service) or T1/FT1 access links. Connections to 56/64k DDS
are made using an integral 56/64k DSU or an external DSU. T1/
FT1 connections are made using an external T1 DSU/CSU through
a V.35 interface.
The Express 5110 provides connections to the user equipment
through two independent ports emulating a DCE device. These
ports can be configured for either RS-232 or V.35 signal
specifications. Synchronous protocol speeds up to 512 kbps and
asynchronous protocol speeds up to 38.4 kbps are supported.
The Express 51 10 handles each frame of the user data in a three-step
manner . Th e first step is terminating the user pro tocol. The layer at
which this termination occurs varies depending on the user
protocol selection for a given port. The next step is examining the
user protocol destination address and routing to the destination
port and virtual circuit. The last step involves encapsulating the
information field of each frame and re-encapsulating based on the
destination port configuration. A similar process is used for frame
relay frames received on the network port.
The major features of the Express 5110 are as follows:
• Two DTE (data terminal equipment) ports for use on a single
frame relay network interface.
• Support for IP (internet protocol), SDLC (synchronous data
link control), Bisync, SLIP (serial link IP), PPP (point- to-point
protocol) both sync and async, frame relay, BOP (bit-oriented
protocol), and async protocols.
• SNMP (simple network management protocol) management
capability provided inband with support for RFC 1315 (frame
relay DTE MIB), RFC 1213 (MIB II), and ADTRAN Enterprise
MIB.
1-2 Express 5110 User Manual 6120213 0L2-1
• DCE port supporting rates of up to 512 kbps.
• Integrated 56/64 DDS DSU/CSU.
• Telnet-provided remote terminal management control.
• FLASH code space for easy software upgrades.
DDS OPERATION
DDS is a nationwide service that allows interconnection and
transportation of data at speeds up to 64 kbps. The local exchange
carriers provide the local loop service to DDS customers and may
provide data for routing Inter-LATA to an interexchange carrier.
The Express 5110’s integrated 56/64 DDS DSU connects directly to
a frame relay ne twork vi a a 56 or 6 4k DDS cir cu it. The Express 5110
supports the 56/64 kbps DDS service rate yielding DTE rates of 2.4,
4.8, 9.6, 19.2, 38.4, 56, and 64 kbps.
SNMP MANAGEMENT
SNMP management capability is provided inband with support for
RFC 1315 (frame rel ay DTE MIB), RFC 1213 (MIB II), an d ADTRAN
Enterprise MIB. Telnet capability is also supported. For nonSNMP environments, VT 100 and front panel operation is
supported.
Chapter 1. Introduction
61202130L2-1 Express 5110 User Manual 1-3
Chapter 1. Introduction
1-4 Express 5110 User Manual 6120213 0L2-1
Chapter 2
Installation
UNPACK, INSPECT, PO WER UP
Receiving Inspection
Carefully inspect the Express 5110 for any damage that may have
occurred in shipment. If damage is suspected, file a claim
immediately with the carrier and contact ADTRAN Customer
Service (see the last page of this manual). Keep the original
shipping container to use for future shipment or verification of
damage during shipment.
ADTRAN Shipments Include
The following items are included in ADTRAN shipments of the
Express 5110:
• Express 5110 unit
• User manual
• An 8-position modular to 8-position modular cable
• VT 100 terminal adapter cable (consists of a DB-25 modular
adapter and an 8-position to 8-position modular cable)
Customer Provides
The customer provides an interface cable for each port used. Each
cable should be either an RS-232 with a standard 25-pin male Dtype connector or a V.35 cable. V.35 requires an ADTRAN adapter
cable (part numbers: male 1200193L1; female 1200194L1).
61202130L2-1 Express 5110 User Manual 2-1
Chapter 2. Installation
Power Up
Each Express 5110 unit is provided with a captive eight-foot power
cord, terminated by a three-prong plug which connects to a
grounded 115 VAC power receptacle.
REAR PANEL
The Express 5110 is equipped with three DB-25 connectors labeled
DTE 1, DTE 2, and DCE. Connections to the dedicated circuit and
VT 100 interface are provided through the 8-pin telco jacks labeled
TELCO and CONTROL. Pin assignments for these connectors are
given in Pinouts on page A-1. The Express 5110 r ear panel is shown
in Figure 2-1 on page 2-3.
Power to the Express 5110 must be provid ed from a groun ded 115 VAC,
60 Hz receptacle.
DCE Connector
The connector labeled DCE provides connection to an external
DSU/CSU. The pinouts for this connector are shown in Pinouts on
page A-1.
The connection between the Express 5110 and an external DSU is a direct
connection. When connecting to an external DSU, the Express 5110 emulates an externally tim ed DTE interface connected directly to the DCE
interface of the external device.
DTE Connectors
DTE devices are connected to the DTE connectors using either an
RS-232 DTE cable or a CCITT V.35 DTE adapter cable. The
maximum cable lengths recommended are 50 feet for the RS-232
and 100 feet for the CCITT V.35. The pin assignments are listed in
Pinouts on page A-1.
2-2 Express 5110 User Manual 6120213 0L2-1
Chapter 2. Installation
The V.35 adapter cable is recommended for use with data rates
above 19.2 kbps. A low capacitance RS-232 cable works up to 56
kbps. The DTE ports are configured through the front panel or the
VT 100 control po rt. The D TE ports ca n oper ate in asynchronous or
synchronous modes.
Frame
Relay
VT 100 Terminal
123
DAEBF
456
789
SHIFT QUICK
*
C
#0
115VAC 60Hz
4-wire Telco Cable
RJ45-to-DB25
Cable
RS CS TD RD CD ALM TST
RS232 or V.35
Cable
TELCO
CONTROL
RS232 or V.35
Cable
DTE Device DTE Device
DCE
RS232 or V.35
Cable
DSU III AR
DSU/CSU
ENTER
CANCEL
DTE 2DTE 1
Item Function
DCE port Connects to an external DSU/CSU
DTE 1 port Connects to a DTE device
DTE 2 port Connects to a DTE device
Telco connector Connects to the dedicated circuit
Control port Connects to the VT 100 interface
On/Off switch Turns power on and off
115 VAC connection Connects to captive power cord
ON
OFF
Figure 2-1. Express 5110 Rear View
61202130L2-1 Express 5110 User Manual 2-3
Chapter 2. Installation
Telco Connector
The TELCO connector is an eight-position modular jack which
provides connection to the dedicated (DDS) network. See Pinouts
on page A-1 for the TELCO connector's pin assignments.
Control Port
The eight-position modular jack labeled CONTROL provides
connection to a VT 100 RS-232 compatible interface. This enables
the Express 5110 to be configured through a terminal instead of the
front panel. Use the VT 100 terminal cable (provided) for this
connection. See Pinouts on page A-1 for the connector pin
assignments. A description of the operation of this port is covered
in Operation on page 3-1.
2-4 Express 5110 User Manual 6120213 0L2-1
Chapter 3
Operation
FRONT P ANEL
The Express 5110 faceplate is shown in Figure 3-4 on page 3-9.
Descriptions of each part of the front panel follow.
LCD Window
Displays menu items and messa ges in 2 lines by 16 characters.
Enter
Selects active menu items. T o activate a menu item scroll to it using
the arrow keys, or press the number of the item. The flashing
cursor indicates which parameter is activated. Press
the active menu item.
Numeric Keypad
Enter to select
The numeric keypad contains the numbers
characters
enter information (such as the IP address).
Shift
Enter alpha characters by pressing
character . The
first pressing
To activate a menu item designated by an alpha character rather
than a number, place the cursor on the menu item using the up and
down arrows or press
61202130L2-1 Express 5110 User Manual 3-1
A throug h F, which are used to activate menu items and
Shift before each desired
NEXT , PREV, ADD, and DEL keys ar e al so act ivated by
Shift.
Shift and then the letter. The flashing cursor
0 through 9 and alpha
Chapter 3. Operation
indicates which parameter is activated. Press Enter to select the
item.
If a key is pressed without using
active instead of the alpha item. If this happens, repeat the correct
procedure.
Cancel
Pressing the
previous menu. Repeat until the desired menu level is reached.
When a submenu item is displayed, press
display and return to the previous menu.
Up and Down Arrows
Up and down arrows scroll through and activate the submenu
items available in the current menu. When the submenu items are
scrolled, the flashing cursor indicates the active parameter.
Next, Prev, Add, Del
To activate these functions, press and release the
press the
editing routing tables. See DTE Port Configuration on page 6-1 and
IP Routing on page 8-1 for more information.
LED Descriptions
The Express 5110 has seven LED indicators: TD1, RD1, TD2, RD2,
TDN, RDN, and ALM/TST. These LEDs are identified as follows:
Shift, the numbered item becomes
Cancel key stops the current activity and returns to the
Cancel to exit th e current
Shift key, then
NEXT, PREV, ADD, or DEL key. Use these keys when
TD1: Transmit Data (DTE 1)
This LED is active when the Ex press 5110 DTE 1 port is transmitting data.
RD1: Receive Data (DTE 1)
This LED is active when the Ex press 5110 DTE 1 port is receiving data.
TD2: Transmit Data (DTE 2)
This LED is active when the Ex press 5110 DTE 2 port is transmitting data.
RD2: Receive Data (DTE 2)
This LED is active when the Ex press 5110 DTE 2 port is receiving data.
3-2 Express 5110 User Manual 6120213 0L2-1
TDN: Transmit Data (Network)
This LED is active when the Express 5110 Network port is
transmitting data.
RDN: Receive Data (Network)
This LED is active when the Ex pre ss 5110 Network port is receiving data.
ALM/TST: Alarm/Test)
This LED is active when an alarm condition exists or when the unit
is in test mode. Alarm conditions include:
DDS Alarm Condit ions
• Open loop on network
• No frame synchronization
Frame Relay Alarm Condition
• Network frame relay signaling state is down.
External DSU/CSU Alarm Condition
• DSR on an external DSU/CSU is false.
Front P anel Operation
To c hoose a menu item , press the corresponding number or alpha
character on the keypad. Press
alpha selections. Scrolling to the selection by pressing either the up
or down arrows also activates the menu items. The flashing cursor
indicates which selection is activated. Press
The following steps and Figure 3-1 on page 3-4 illustrate how to
select Express 5110 options:
Chapter 3. Operation
Shift to activate menu items with
Enter to select the item.
1. Activate
pressing
C
ONFIGURATION
1. The cursor will flash on the number next to the
activated selection. Press
CONFIG
(
Enter.
) using the arrow keys or by
2. Use the arrow keys to view submenu items.
3. Choose an item on the submenu such as
4. Activate
Press
5. Activate
pressing
D
Enter.
P
1. Press Enter.
TE PORT
ROTOCOL
1
using the arrow keys or by pressing
options using the arrow keys or by
D
TE PORT
1
.
1.
6. Press the arrow keys until the desired protocol is displayed.
Press
Enter.
61202130L2-1 Express 5110 User Manual 3-3
Chapter 3. Operation
1 PORT DISABLED
2 FRAME RELAY
3 SDLC <> LLC2
4 TRANSPARENT BOP
5 BISYNC
1 DTE PORT 1 1 PROTOCOL 6 TRANSPARENT ASYNC
1 CONFIG 2 DTE PORT 2 2 PHYS LYR OPT 7 PPP SYNCHRONOUS
3 NETWORK PORT 3 PROTOCOL OPT 8 PPP ASYNC
4 CONTROL PORT 4 ADDRESS TABLE 9 SLIP
5 IP ROUTING
6 UNIT CONFIG
Figure 3-1. Example of Basic Menu Travel
VT 100 Terminal Connection and Operation
To control the Express 5110 using a VT 100 terminal, perform the
following procedure:
1. Set the Express 5110 baud rate to match the terminal through
the front panel. Select
1 C
ONFIG
2. Using the provided VT 100 terminal adapter cable, connect the
COM port of a VT 100 compa tibl e term i nal o r eq ui val en t t o th e
eight-pin modular jack labeled CONTROL on the rear of the
Express 51 10 . This connection is used for both local and r emote
configuration.
3. Open the connection and press
M
appears (Figure 3-2 on page 3-5).
ENU
4. Select
L
OCAL LOGIN
to configure the Express 5110 unit connected
to the terminal. Select
R
EMOTE LOGIN
Enter repeatedly until the
located Express 5110 unit. For remote applications, enter the DLCI
(data link connection identifier) number of the r emote un it by
pressing
B
EGIN REMOTE SESSION
1, Enter, the DLCI number , and Ent e r ag ain. Next select
by pr essing 2 and Enter.
5. Enter the password. The factory default password is adtran.
M
The
menu will appear (Figure 3-3 on page 3-5).
AIN
6. Make selections by entering the number corresponding to the
chosen parameter. Press
ESC to return to the previous screen.
4 C
, then
to configur e a r emo tely
ONTROL PORT
.
L
OGIN
3-4 Express 5110 User Manual 6120213 0L2-1
Chapter 3. Operation
In the upper right-hand corner of the VT 100 screen, LOCAL or REMOTE is displayed, indicating which unit the current screen represents.
See Figure 3-3 on page 3-5.
Figure 3-2. Terminal Login Menu
Figure 3-3. Terminal Main Menu
61202130L2-1 Express 5110 User Manual 3-5
Chapter 3. Operation
EXPRESS 5110 MENU STRUCTURE
The opening menu is the access point to all other operatio ns. The
M
menu branches are
AIN
S
A
,
AVE
BORT
, and
L
OGOUT
C
ONFIGURATION
M
. Each
functions and submenus to identify and access specific parameters.
The Logout selection is available on the VT 100 interface only.
In this chapter, the VT 100 selections are listed first followed by the Front
Panel selections (if the names differ).
Main Menu
S
,
TATISTICS
menu item has several
AIN
D
,
IAGNOSTICS
,
Definitions for the branches of the
M
menu follow:
AIN
Configuration (CONFIG)
C
ONFIGURATION
is used to select network and DTE operating
parameters. For more information on configuration options, see
the following chapters: Configuration Overview on page 5-1, DTE
Port Configuration on page 6-1, Configuring the Network Port on page
7-1, IP Routing on page 8-1, and System Configuration on page 9-1.
When DTE Port 1 or 2 is selected, the protocol enabled determines
the selections for
P
and
ROTOCOL ADDRESS TABLE
P
HYSICAL LAYER
.
O
PTIONS
P
,
ROTOCOL OPTIONS
,
View Statistics (STATS)
This selection displays statistical information for DTE ports, the
network port, the protocol, and the system. See the chapter
Statistics for more information.
Diagnostics (DIAG)
Diagnostic options enable and disable loopback and ping
functions. See Diagnostics on page 11-1 for more information.
3-6 Express 5110 User Manual 6120213 0L2-1
Chapter 3. Operation
Save Configuration (SAVE)
This parameter saves the currently selected configuration.
Configuration changes are not implemented until the Save Configuration
(SAVE) option is s elected.
Abort Changes (ABORT)
This parameter cancels the current selections and reverts to the last
saved configuration.
Logout (VT 100 menu only)
This parameter logs out of the system.
61202130L2-1 Express 5110 User Manual 3-7
Chapter 3. Operation
3-8 Express 5110 User Manual 6120213 0L2-1
Chapter 4
Applications
This chapter provides examples of some common Express 5110
applications. The examples include SNA/SDLC with local
spoofing, SNMP/Telnet management, bisync point-to-point and
multi-point, and transparent applications. The configuration
selections given in these examples may need modification based on
your network configuration.
SNA/SDLC WITH LOCAL SPOOFING
When used in an SNA/SDLC network, the Express 5110 provides
local spoofing by emulating the prim ary or secondary SDLC roles
(see Figure 4-1 on page 4-2). The Expr ess 5110 performs conversion
from SDLC to frame relay and also terminates SDLC links,
providing primary and secondary emulation between Express
5110s. Local spoofing improves performance by reducing traffic
across the frame relay network and allows definite response times
on the SDLC links.
To perform spoofing, the Express 5110 automatically sets itself up
to provide primary or secondary emulation based on the receipt of
SNRM (set normal response mode) from an SDLC device. The
Express 51 10 looks for SNRM on all ports and assumes a secondary
role once SNRM is received. The Express 5110 then brings up the
LLC2 link across the frame relay network to another FRAD which
assumes a primary role. This allows the Express 5110 to operate
with PU 2.1 devices.
Different roles can be assumed for each SDLC session.
Disconnection starts the role determination procedure again.
61202130L2-1 Express 5110 User Manual 4-1
Chapter 4. Applications
In all cases, the Express 5110 is transparent to the XID (exchange identification) negotiation between any two network devices.
The Express 5110 uses LLC protocol (mode 2) to transport SDLC
information frames. This protocol ensures a reliable link across
frame relay, providing protection from frame loss and excessive
delays. The encapsulation method uses the RFC 1490 format. See
Table 4-1 on page 4-3 for an example of how to configure the
Express 5110 for this application.
Remote End Host End
PU Address = C0
SDLC
3270 Controller
SDLC
3270 Controller
PU Address = C0
PU Address = C0
PU Address = C1
DLCI=17 DLCI=120
DTE1
NN
DTE2
5110
UNI
FRAME RELAY
UNI
RFC1490/LLC2
DTE1
DTE2
5110
SDLC
FEP Host
Figure 4-1. SNA /SDLC with Local Spoofing
4-2 Express 5110 User Manual 6120213 0L2-1
Chapter 4. Applications
Table 4-1. Configuration Settings for SNA/SDLC Application
HOST Express 5110 REMOTE Express 5110
DTE Port 1
Protocol
Physical Layer
Options
Protocol
Options
Protocol
Address Table
DTE Port 2
Protocol
Physical Layer
Options
Protocol
Options
Protocol
Address Table
Network Port
Interface Type
Physical Layer
Options
Frame Relay
Options
SDLC SDLC
CONN=RS232
RATE=19.2K
IDLE=ONES
FORMAT=NRZ
TIMEOUT=3
MIN POLL TIME=0
THRESHOLD=10
POLL RATIO=1
TX DELAY=0
ENTRY#1
CTRL ADDR=C0
GROUP ADD R = 0
LLC2 SSAP=04
LLC2 DSAP=04
OUT DLCI=120
DISABLED SDLC
N/A CONN=RS232
N/A FORMAT=NRZ
N/A ENTRY #1
V.35 NET
BIT RATE=64K LOOP RATE=64K
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
Entry #2
CTRL ADDR=C1
GROUP ADDR=0
LLC2 SSAP=08
LLC2 DSAP=04
OUT DLCI=120
CONN=RS232
RATE=19.2K
IDLE=ONES
FORMAT=NRZ
TIMEOUT=3
MIN POLL TIME=0
THRESHOLD=10
POLL RATIO=1
TX DELAY=0
ENTRY #1
CNTRL ADDR=C0
GROUP ADDR=0
LLC2 SSAP=04
LLC2 DSAP=04
OUT DLCI=17
RATE=19.2
IDLE=ONES
TIMEOUT=3
MIN POLL TIME=0
THRESHOLD=10
POLL RATIO=1
TX DELAY=0
CTRL ADDR= C1
GROUP ADDR=0
LLC2 SSAP=04
LLC2 DSAP=08
OUT DLCI=17
CLOCK SOURCE= SLAVE
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
61202130L2-1 Express 5110 User Manual 4-3
Chapter 4. Applications
SNA and LAN Application with SNMP/Telnet
Management
When used in a mixed environment consisting of both SNA and
LAN networks, the Express 5110 serves as a concentrator, allowing
both networks access to one frame relay link. The example shown
in Figure 4-2 on page 4-5 shows DTE 1 configured for SDLC
protocol (as in the previous example). DTE 2 is configured for
frame relay protocol, providing the LAN gateway/router with
frame relay access.
The Express 5110 routes data at the DLCI level using the DTE 2
frame relay address table. The Express 5110 emulates the network
end of the UNI signaling protocol fo r the DTE port while emulating
the CPE end for the network port. PVC status information from the
frame relay network is stored and used f or full status req uests fro m
the router attached to the DTE port.
A local DLCI is set up between the router and the Express 5110.
This Management DLCI carries the SNMP and telnet traffic
destined for the Express 5110. This DLCI is included in the UNI full
status responses to the router. The Express 5110 IP addr ess must be
mapped to the management DLCI in the LAN router's route table
(see the following note). W ith this path , an SNMP manager located
anywhere in the network can access the Express 5110's SNMP and
telnet information. See Table 4-2 on page 4-6 for an example
configuration.
RIP and inverse ARP are not used for the Express 5110 DTE frame relay
port.
4-4 Express 5110 User Manual 6120213 0L2-1
Chapter 4. Applications
Remote End Host End
PU Address = C0
SDLC
3270 Controller
DLCI = 18
MDLCI = 960
UNI
Router
DTE1
N
DTE2
5110
DLCI=17 DLCI=120
FRAME RELAY
UNI
DLCI=18
UNI
RFC1490/LLC2
UNI
PU Address = C0
DTE1
SDLC
N
DTE2
5110
Router
FEP Host
SNMP Manager
Figure 4-2. SNA and LAN Application with SNMP/Telnet Management
Server
61202130L2-1 Express 5110 User Manual 4-5
Chapter 4. Applications
Table 4-2. Configuration Settings for SNA and LAN Application
HOST Express 5110 REMOTE Express 5110
DTE Port 1
Protocol
Physical
Options
Protocol
Options
Protocol
Address Table
DTE Port 2
Protocol
Physical
Options
Protocol
Options
Protocol
Address Table
Network Port
Interface Type
Physical
Options
FRAME RELAY
OPTIONS
SDLC SDLC
CONN=RS232
RATE=19.2
IDLE=ONES
FORMAT=NRZ
TIMEOUT=3
MIN POLL TIME=0
THRESHOLD=10
POLL RATIO=1
TX DELAY=0
ENTRY#1
CTRL ADDR=CO
GROUP ADDR=0
LLC2 SSAP=04
LLC2 DSAP=04
OUT DLCI=120
DISABLED FRAME RELAY
N/A CONN=V.35
N/A SIGNAL=ANSI
N/A PORT DLCI=18
NET NET
LOOP RATE=64K
CLOCK SOURCE=SLAVE
SIGNAL TYPE= ANNEX D
T391=10
N391=6
N392=3
N393=4
CONN=RS232
RATE=RS232
IDLE=ONES
FORMAT=NRZ
TIMEOUT=3
MIN POLL TIME=0
THRESHOLD=10
POLL RATIO=1
TX DELAY=0
ENTRY #1
CTRL ADDR=0
GROUP ADDR=0
LLC2 SSAP=04
LLC2 DSAP=04
OUT DLCI=17
RATE=64K
IDLE=FLAGS
HDW FLOW CTRL=ON
T392=15
N392=3
N393=4
IP ADDR=200.200.200.2
SUBNETMASK=255.255.255.0
MNG DLCI=960
NET DLCI=18
LOOP RATE=64K
CLOCK SOURCE=SLAVE
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393-4
4-6 Express 5110 User Manual 6120213 0L2-1
Bisync Application
The Express 5110 can be used to connect IBM 3780/2780 (see IBM
manual number GA27-3004-2) bisync controllers and a host acr o s s
a frame relay network. Point-to-point and mu lti-point
configurations are supported at speeds up to 19200 bps. The LLC
protocol (mode 2) is used to provide a reliable transport layer
across the frame relay network. In a multi-point configuration the
Express 5110 performs local spoofing, minimizing traffic across the
frame relay network. Sample network illustrations for both pointto-point and multi-poin t are show n in Figures 4-3 and 4-4.
See Table 4-3 on page 4-9 for an example configuration for the
point-to-point application.
Bisync Bisync
DTE1
3780 Controller
N
DTE2
5110 5110
DLCI=17 DLCI=120
FRAME RELAY
UNI
UNI
Chapter 4. Applications
DTE1
N
DTE2
FEP Host
RFC1490/LLC2
Figure 4-3. Bisync Point-to-Point
61202130L2-1 Express 5110 User Manual 4-7
Chapter 4. Applications
Poll Address=AA1
3780 Controller
3780 Controller
Poll Address=BB1
DLCI=17 DLCI=120
Bisync Bisync
Bisync
DTE1
NN
UNI
FRAME RELAY
UNI
DTE2
DTE1
DTE2
5110 5110
RFC1490/LLC2
Figure 4-4. Bisync Multi-Point
FEP Host
4-8 Express 5110 User Manual 6120213 0L2-1
Chapter 4. Applications
Table 4-3. Configuration Settings for Multi-Point Bisync Application
DTE Port 1
Protocol
Physical
Options
Protocol
Options
Protocol
Address Table
DTE Port 2
Protocol
Physical
Options
Protocol Address
Table
Frame Relay
Options
HOST Express 5110
BISYNC BISYNC
CONN=RS232
RATE=9600
LINE=MULTIPOINT
TRANS CODE=EBCDIC CRC 16
FORMAT=NRZ
TIMEOUT=3
THRESHOLD=10
POLL RATIO=1
ENTRY #1
UNIT ADDR=AA1
LLC2 SSAP=04
LLC2 DSAP=04
OUT DLCI=120
BISYNC BISYNC
LINE=MULTIPOINT
TRANS CODE=EBDIC CRC 16
FORMAT=NRZ
TIMEOUT=3
THRESHOLD=10
POLL RATIO=1
ENTRY #1
UNIT ADDR=AA1
LLC2 SSAP=04
LLC2 DSAP=04
OUT DLCI=120
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
ENTRY #2
UNIT ADDR=BB1
LLC2 SSAP=04
LLC2 DSAP=08
OUT DLCI=12
ENTRY #2
UNIT ADDR=BB1
LLC2 SSAP=04
LLC2 DSAP=08
OUT DLCI=12
REMOTE Express 5110
CONN=RS232
RATE=9600
LINE=MULTIPOINT
TRANS CODE=EBCDIC
CRC 16
FORMAT=NRZ
TIMEOUT=3
THRESHOLD=10
POLL RATIO=1
ENTRY #1
UNIT ADDR=AA1
LLC2 SSAP=04
LLC2 DSAP=04
OUT DLCI=17
LINE=MULTIPOINT
TRANS CODE=EBCDIC
CRC 16
FORMAT=NRZ
TIMEOUT=3
THRESHOLD=10
POLL RATIO=1
ENTRY#1
UNIT ADDR=BB1
LLC2 SSAP=08
LLC2 DSAP=04
OUT DLCI=17
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
61202130L2-1 Express 5110 User Manual 4-9
Chapter 4. Applications
Transparent Application
In cases when the user protocol is not supported by the Express
5110, the transparent mode may be used. Transparent bit-oriented
protocol (BOP) or transparent asynchronous protocol may be
selected. This can be used for point-to-point connections only
because the Express 5110 is transparent to the protocol address
formats.
In the transparent BOP protocol, the Express 5110 accepts an
HDLC-like protocol and encapsulates the information field of the
HDLC frames, transporting them across the frame relay network to
the specified virtual circuit and remote Express 5110 port number.
The incoming frames must be spaced with at least one flag byte
(0x7E) and contain two bytes of CRC16 at the end of each frame.
Asynchronous protocols are supported by using the transparent
async mode. The Express 5110 buffers async characters and
encapsulates the data portion of each character for transport across
frame relay using a programmable DLCI and remote Express 5110
port number.
See Figure 4-5 below and Ta ble 4-4 on page 4-11 for an example of a
transparent BOP configuration. See Figure 4-6 on page 4-11 and
Table 4-5 on page 4-12 for an example of a transparent
asynchronous application.
REMOTE LOCAL
DTE1 DTE1
FRAME RELAY
N
UNI
UNI
HDLCHDLC
Router Router
5110 5110
Figure 4-5. Transparent BOP Application
4-10 Express 5110 User Manual 61202130L2-1
DTE Port 1
Protocol
Physical Layer
Options
Protocol
Options
Protocol
Address Table
Network Port
Interface Type
Physical Layer
Options
Frame Relay
Options
REMOTE LOCAL
Chapter 4. Applications
Table 4-4. Configuration Settings for Transparent BOP Application
HOST Express 5110 REMOTE Express 5110
TRANS BOP TRANS BOP
CONN=V.35
RATE=64K
IDLE=FLAGS
HDW FLOW CTRL=ON
N/A N/A
FAR END PORT=1
DLCI=100
NET NET
LOOP RATE=64K
CLOCK SOURCE=SLAVE
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
CONN=V.35
RATE=64K
IDLE=FLAGS
HDW FLOW CTRL=ON
FAR END PORT=2
DLCI=17
LOOP RATE
CLOCK SOURCE=SLAVES
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
DLCI=17 DLCI=100
PC
ASYNC
DTE1
FRAME RELAY
N
UNI
UNI
DTE2
ASYNC
PC
5110 5110
Figure 4-6. T ransparent Async Application
61202130L2-1 Express 5110 User Manual 4-11
Chapter 4. Applications
Table 4-5. Configuration Settings for Transparent Async Application
DTE Port 1
Physical Layer
Options
Protocol
Options
Protocol
Address Table
Network Port
Interface Type
Physical Layer
Options
Frame Relay
Options
HOST Express 5110 REMOTE Express 5110
TRANS ASYNC TRANS ASYNC
CONN=RS232
BAUD=38.4
DATA BITS=8
PARITY=NONE
STOP BITS=1
HDW FLOW CTRL=ON
N/A N/A
FAR END PORT=1
DLCI=100
NET NET
LOOP RATE=64K
CLOCK SOURCE=SLAVE
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
CONN=RS232
BAUD=38.4K
DATA BITS=8
PARITY=NONE
STOP BITS=1
HDW FLOW CTRL=ON
FAR END PORT=2
DLCI=12
LOOP RATE
CLOCK SOURCE=SLAVE
SIGNAL TYPE=ANNEX D
T391=10
N391=6
N392=3
N393=4
4-12 Express 5110 User Manual 61202130L2-1
Chapter 5
Configuration Overview
LOCAL AND REMOTE CONFIGURATION
The Express 5110 can be configured locally or, when using the VT
100 interface, communications can be established so a local Express
5110 can configure a remote Express 5110. See Operation on page
3-1 for information on selecting
C
The
ONFIGURATION
submenus relating to specific interfaces or functions of the Express
5110 requiring setup:
DTE Port 1
DTE Port 2
Network Port
Control (front panel only)
IP Routing
System Configuration
Configure the Network Port before the DTE Ports. Selections made will
affect the choices available for the DTE ports.
menu (Figure 5-1 on page 5-2) consists of
L
OCAL
or
R
EMOTE
operation.
When configuring DTE port 1 or 2, select the Protocol first. This selection determines which parameters will be available for the Physical Layer
Options, Protocol Options, and Protocol Address Table.
61202130L2-1 Express 5110 User Manual 5-1
Chapter 5. Configuration Overview
The Express 5110 contains a default set of configuration options
stored in read-only memory (see the appendix Default Configuration
Profile). The unit is shipped from the factory with this profile
loaded into the current (nonvolatile configuration) memory. If this
profile matches requirements for the system, then no additional
configuration is required to put the unit into service. If the profile
does not match system requirements, it can be modified. When the
profile is modified, it is stored in the current (nonvolatile
configuration) memory. The Express 5110 is then configured with
that profile every time power is turned on.
For detailed information on configuration see DTE Port
Configuration on page 6-1, Configuring the Network Port on page 7-1,
IP Routing on page 8-1, and System Configuration on page 9-1.
Configuration menus are shown in Figure 5-2 on page 5-3 (for the
Front Panel) and Figure 5-3 on page 5-5 (for the VT 100 terminal).
Figure 5-1. VT 100 Configuration Menu
5-2 Express 5110 User Manual 6120213 0L2-1
Chapter 6
DTE Port Configuration
Configure the protocol, physical layer options, protocol options,
and protocol address table for the two DTE ports located on the
rear of the Express 5110 by selecting
from the
configuration menu for DTE Port 1.
Configure the Network Port before the DTE Ports. Selections made will
affect the choices available for the DTE ports.
C
ONFIGURATION
menu. Figures 6-1 illustrates the VT 100
D
TE PORT
1
or
DTE P
ORT
2
Figure 6-1. VT 100 Port Configuration Menu
61202130L2-1 Express 5110 User Manual 6-1
Chapter 6. DTE Port Configuration
When configuring the DTE ports, select the protocol first. This
selection determines which parameters will be available in the
other three categories (
O
PTIONS
, and
P
ROTOCOL ADDRESS TABLE
P
HYSICAL LAYER OPTIONS
). See Figure 6-2 for the
P
,
ROTOCOL
menu tree leading to the protocol selection. Definitions for each
choice follow, categorized by the selected protocol.
In this chapter, the VT 100 selections are listed first followed by the Front
Panel selections (if the names differ).
DISABLED
FRAME RELAY
SDLC
TRANS BOP
1 PROTOCOL BISYNC
1CONFIG 1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS TRANS ASYNC
2 DTE PORT 2 3 PROTOCOL OPTIONS PPP SYNC
4 ADDRESS TABLE PPP ASYNC
SLP
Figure 6-2. Front Panel Protocol Menu Tree
6-2 Express 5110 User Manual 6120213 0L2-1
Port Disabled Protocol (DISABLED)
Follow the menu tree shown in Figure 6-3 to disable the DTE port
protocol. If only one of the DTE ports is in use, select
D
ISABLED
1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS N/A
1 CONFIG
2 DTE PORT 2 3 PROTOCOL OPTIONS N/A
Physical Layer Options
Physical layer options are not available when the port is disabled.
for the unused port.
1 PROTOCOL 1 PORT DISABLED
PROTOCOL ADDRESS TABLE N/A
Figure 6-3. P ort Disabled Menu Tree
Chapter 6. DTE Port Configuration
P
ORT
Protocol Options
Protocol options are not available when the port is disabled.
Protocol Address Table (ADDRESS TABLE)
Address table options are not available when the port is disabled.
Frame Relay Protocol
The frame relay protocol is a sync hronous protocol used to
concentrate two differ ent devices into a common fra me r elay link to
the network. While configured for frame relay protocol, the
Express 5110 accepts frame relay frames from a router or a FRAD
and routes to/from the network port based on the DLCI address.
The address can be mod ified or preserved from the DTE and
network side based on the frame relay address table. FECN, BECN,
DE, and C/R states are no t changed as frames are transferred
between the DTE and the network ports. The menu tree in
61202130L2-1 Express 5110 User Manual 6-3
Chapter 6. DTE Port Configuration
Figure 6-4 shows the choices available when the frame relay
protocol is selected.
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
and
assignments.
Synchronous Bit Rate (RATE)
Select the operating speed of the DTE interface. The selections are
2400, 4800
192, 224, 256, 280, 320, 384, 448
Speed selections made for the Network Port affect the choices available for
the DTE ports.
Synchronous Idle Method (IDLE)
Enable the Express 5110 to transmit flags or all ones. When
operating the frame relay protocol, configure this option to
transmit flags.
RS-232
, and
. See the appendix Pinouts for the connector pin
9600
bps and 19.2, 38.4, 56, 64,
, and
512
112, 128, 168
kbps.
,
Hardware Flow Control (HDW FLOW CTRL)
When enabled, the Express 5110 varies the transmit clock rate to
temporarily limit the transmit data rate to the Express 5110.
6-4 Express 5110 User Manual 6120213 0L2-1
Chapter 6. DTE Port Configuration
1 PROTOCOL 2 FRAME RELAY
1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
1 CONFIG 2 V.35
2 DTE PORT 2
1 2400 bps
2 4800 bps
3 9600 bps
4 19.2 Kbps
5 38.4 Kbps
6 56 Kbps
2 SYNCHRONOUS BIT RATE 7 64 Kbps
8 112 Kbps
9 128 Kbps
10 168 Kbps
11 192 Kbps
12 224 Kbps
13 256 Kbps
14 280 Kbps
15 320 Kbps
16 384 Kbps
17 448 Kbps
18 512 Kbps
3 SYNCHRONOUS IDLE METHOD 1 TRANSMIT FLAGS
2 TRANSMIT ALL ONES
4 HARDWARE FLOW CONTROL 1 OFF
2 ON
1 NONE
1 SIGNALING TYPE 2 FRF LMI
3 PROTOCOL OPTIONS 2 T392 3 ANSI T1.617-D
3 N392 4 ITU-T Q.933-A
4 N393
5 IP ADDRESS
6 SUBNET MASK
7 MANAGEMENT DLCI
4 PROTOCOL ADDRESS TABLE 1 DTE PORT DLCO
2 NETWORK DLCI
Figure 6-4. Frame Relay Protocol Menu Tree
61202130L2-1 Express 5110 User Manual 6-5
Chapter 6. DTE Port Configuration
Protocol Options
Signaling Type (SIGNAL)
Set the signaling type for the DTE port to match the signaling type
of the connected DTE device. Choices are
T1.617-D
state for the DTE port is always up.
T392
Set the timeout between polling intervals. This parameter needs to
be a few seconds longer than the T391 setting of the attached frame
relay device.
N392 and N393
These parameters define the error threshold for the UNI formed by
the Express 5110 DTE port and the attached frame relay device. If
the error threshold is met, the signaling state status is changed to
down, which indicates a service-affecting condition. This condition
is cleared once N393 consecutive error-free events are received.
N392 defines the number of errors required in a given event
window, while N393 defines the number of polling events in each
window.
ITU-T Q.933-A
, and
. If
N
N
is chosen, the signaling
ONE
FRF LMI, ANSI
,
ONE
For example:
If N392=3 and N393=4, then if three errors occur within any four
events the interface is determined inactive.
The status of the connection can be viewed in the
DTE P
under
ORT SIGNALING STATE
. The status will return to active
S
TATUS
menu
once the threshold is no longer exceeded.
Guidelines for Configuring IP Addr, Subnet Mask, and Mng
DLCI
If the attached router or FRAD is used to route SNMP/telnet
frames to the Express 5110, set the
M
ANAGEMENT
DLCI
to a unique
value that identifies the virtual circuit between the router/FRAD
and the Express 51 10. The router/FRAD must also be configured to
route the Express 5110 IP address to this DLCI. The IP address and
subnet mask for the DTE port must also be set.
6-6 Express 5110 User Manual 6120213 0L2-1
Chapter 6. DTE Port Configuration
Setting the IP address to 0.0.0.0 and setting the Mng DLCI to a
value not used by the attached frame relay device disables this
feature.
IP Address (IP ADDR)
Enter the Express 5110 IP address. Each port capable of carrying IP
traffic has its own unique IP address. See the previous section,
Guidelines for Configuring IP Addr, Subnet Mask, and Mng DLCI on
page 6-6, for more information.
IP Subnet Mask
Enter the subnet number assigned to the network formed by the
Express 5110 and the other FRAD/routers across the frame relay
network. See Guidelines for Configuring IP Addr, Subnet Mask, and
Mng DLCI on page 6-6 for more information.
Management DLCI (MNG DLCI)
Enter the management data link connection identifier. The
Management DLCI is a special DLCI used between the attached
DTE device and the Express 5110 to carry SNMP and telnet packets
to/from the Express 5110 on the DTE port. See Guidelines for
Configuring IP Addr, Subnet Mask, and Mng DLCI on page 6-6 for
more information.
Protocol Address Table
DTE Port DLCI (PRT DLCI)
Enter the DTE port DLCI into the
mapping it to the corresponding
P
ROTOCOL ADDRESS TABLE
N
ETWORK
DLCI
. If address
,
translation is not required, set to the value of the corresponding
network DLCI element.
Network DLCI (NET DLCI)
Enter the network port DLCI into the
mapping it to the corresponding
P
ROTOCOL ADDRESS TABLE
DTE P
ORT
DLCI
. This element
,
should contain DLCI addresses obtained from the service provider.
Edit Next Entry (NEXT key on front panel)
Edit the next entry in the address table.
Edit Previous Entry (PREV key on front panel)
Edit the previous entry in the address table.
61202130L2-1 Express 5110 User Manual 6-7
Chapter 6. DTE Port Configuration
Delete This Entry (DEL key on front panel)
Delete the current entry in the address table.
Add New Entry (ADD key on front panel)
Add a new entry to the address table.
There should be one entry for every virt ual circuit on the frame relay DTE
port.
SDLC Protocol
SDLC is a synchronous, bit-oriented, full-duplex, Layer 2 protocol
used to connect SDLC devices to a frame relay network. At Layer
2, SNA networks use SDLC between FEPs (front-end processors)
and cluster controllers. This protocol selection provides Logical
Link Control Type 2 (LLC2). LLC2 defines the data link frame
header and supports the multiplexing of one or more data links to/
from separate service access points (SAPs). Type 2 provides
acknowledged, connection-oriented service. See Figure 6-5.
The PU (physical unit) address, LLC2 SSAP, LLC2 DSAP, and
outgoing DLCI are used to set up an end-to-end SDLC session for
each PU in the network. The PU address elements should match the
address of each controller address attached to the port. The DLCI
determines the path across the frame relay network and is given by
the service provider. The SSAP/DSAP pairs are user-defined but
should match between two Express 51 10s for each SD LC session.
All PU addresses for a port mu st be unique, but it is not necessary that
they match the PU address at the remote end. The SSAP/DSAP/DLCI is
used to make the connection across the frame relay network.
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
6-8 Express 5110 User Manual 6120213 0L2-1
and
RS-232
.
Chapter 6. DTE Port Configuration
Synchronous Bit Rate (RATE)
Select the operating speed of the DTE interface. The selections are
2400, 4800
192, 224, 256, 280, 320, 384, 448
, and
9600
bps and
19.2, 38.4, 56, 64, 112, 128, 168
512
, and
kbps.
,
Speed selections made for the Network Port affect the choices available for
the DTE ports.
Synchronous Idle Method (IDLE)
Enable the Express 5110 to transmit flags or all ones. When
configured for the SDLC protocol, all ones is the recommended
setting.
Hardware Flow Control (HDW FLOW CTRL)
When configured for the SDLC protocol, this parameter is always
enabled. The Express 5110 issues RNR (receive not ready)
commands to the attached PU, temporarily disabling transmit data
to the Express 5110.
61202130L2-1 Express 5110 User Manual 6-9
Chapter 6. DTE Port Configuration
1 PROTOCOL 3 SDLC
1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
1 CONFIG 2 V.35
2 DTE PORT 2
1 2400 bps
2 4800 bps
3 9600 bps
4 19.2 Kbps
5 38.4 Kbps
6 56 Kbps
2 SYNCHRONOUS BIT RATE 7 64 Kbps
8 112 Kbps
9 128 Kbps
10 168 Kbps
11 192 Kbps
12 224 Kbps
13 256 Kbps
14 280 Kbps
15 320 Kbps
16 384 Kbps
17 448 Kbps
18 512 Kbps
3 SYNCHRONOUS IDLE METHOD 1 TRANSMIT FLAGS
2 TRANSMIT ALL ONES
4 HARDWARE FLOW CONTROL 1 OFF
2 ON
1 DATA FORMAT 1 NRZ
3 PROTOCOL OPTIONS 2 POLL RESPONSE TIMEOUT 2 NRZI
3 MINIMUM POLL TIMER
4 SLOW POLL RATIO
5 RESPONSE TIMER THRESHOLD
6 TRANSMIT DELAY
1 PU ADDRESS
2 GROUP ADDRESS
4 PROTOCOL ADDRESS TABLE 3 LLC2 SSAP
4 LLC2 DSAP
5 OUTGOING DLCI
Figure 6-5. SDLC Protocol Menu Tree
6-10 Express 5110 User Manual 61202130L2-1
Protocol Options
Chapter 6. DTE Port Configuration
Data Format (FORMAT)
Set the data format to match the attached controller or FEP line
coding. The choices are
RETURN-TO-ZERO INVERTED
N
ON-RETURN-TO-ZERO
NRZI
(
).
NRZ
(
) and
-
N
ON
When using NRZI format, the Exp ress 5110 doe s not derive ti ming from
the receive data input.
Poll/Response Timeout (TIMEOUT)
Set the amount of time the Express 5110 waits for a poll response
before issuing another poll.
Minimum Poll Timer
This parameter defines the minimum time (ms) between
consecutive polls to a given PU assigned to the DTE port.
Slow Poll Ratio (POLL RAT)
Determine how often devices on the Slow Poll list are polled. This
list is automatically managed based on poll timeouts. Initially, all
PUs are on the Normal list. When a PU times out a fixed number
of times, it is moved to the Slow Poll list. A PU remains on this list
until it responds properly to a poll.
The number entered is the number of times PUs on the Normal list
are polled before PUs on the Slow Poll list are polled. Enter
1 to
disable this option.
Response Timer Threshold (THRESHOLD)
Set the maximum number of response timeouts allowed before a
session is terminated.
Transmit Delay (DELAY)
Set the minimum time between transm ission frames.
Protocol Address Table
PU Address (PU ADDR)
Enter the physical unit address of each SDLC device you wish to
connect to the Express 5110.
61202130L2-1 Express 5110 User Manual 6-11
Chapter 6. DTE Port Configuration
Group Address (GROUP ADDR)
Enter the address used for group polling. With this address the
host can poll the Express 5110 for information on all units
connected to the Express 5110. This address should match the
host's group address. Set this entry to
the DTE port.
LLC2 SSAP (LLC SSAP)
Defines a point-to-point connection on the network. For an SDLC
connection, the SSAP of one Express 5110 should match the DSAP
on the other Express 5110. The value of this parameter must be in
increments of four beginning with
LLC2 DSAP (LLC DSAP)
Defines a point-to-point connection on the network. For an SDLC
connection, the DSAP of one Express 5110 should match the SSAP
on the other Express 5110. The value of this parameter must be in
increments of four beginning with
Spoofing on page 4-1 for a configuration example which
demonstrates the SSAP and DSAP arrangement.
Outgoing DLCI (OUT DLCI)
Enter the DLCI address that identifies the virtual circuit used to
make the SDLC connection.
0 to disable group polling for
04.
04. See SNA/SDLC with Local
Edit Next Entry (NEXT on front panel)
Edit the next entry in the address table.
Edit Previous Entry (PREV on front panel)
Edit the previous entry in the address table.
Delete This Entry (DEL on front panel)
Delete the current entry in the address table.
Add New Entry (ADD on front panel)
Add a new entry to the address table.
6-12 Express 5110 User Manual 61202130L2-1
Transparent BOP (TRANS BOP)
Transpa rent BOP is a synchronous mode which can accept any
HDLC-like protocol as input. This setting allows the Express 5110
to connect to devices even if the Express 5110 does not understand
their protocol's addressing and controlling techniques. The Express
5110 becomes transparent to the data link layer protocol and
provides end-to-end connectivity between two HDLC-like devices.
See Figure 6-6 for the Transparent BOP menu tree.
1 PROTOCOL 4 TRANSPARENT BOP
Chapter 6. DTE Port Configuration
1 CONFIG 2 V.35
1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
2 DTE PORT 2
1 2400 bps
2 4800 bps
3 9600 bps
4 19.2 Kbps
5 38.4 Kbps
6 56 Kbps
2 SYNCHRONOUS BIT RATE 7 64 Kbps
8 112 Kbps
9 128 Kbps
10 168 Kbps
11 192 Kbps
12 224 Kbps
13 256 Kbps
14 280 Kbps
15 320 Kbps
16 384 Kbps
17 448 Kbps
18 512 Kbps
3 SYNCHRONOUS IDLE METHOD 1 TRANSMIT FLAGS
2 TRANSMIT ALL ONES
4 HARDWARE FLOW CONTROL 1 OFF
2 ON
3 PROTOCOL OPTIONS N/A
4 PROTOCOL ADDRESS TABLE 1 FAR END PORT NUMBER 1 DTE PORT 1
2 OUTGOING DLCI 2 DTE PORT 2
Figure 6-6. Transparent BOP Menu Tree
61202130L2-1 Express 5110 User Manual 6-13
Chapter 6. DTE Port Configuration
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
and
Synchronous Bit Rate (RATE)
Select the operating speed of the DTE interface. The selections are
2400, 4800
192, 224, 256, 280, 320, 384, 448
Speed selections made for the Network Port affect the choices available for
the DTE ports.
Synchronous Idle Method (IDLE)
Enable the Express 5110 to transmit flags or all ones (flags are
recommended).
Hardware Flow Control (HDW FLOW CTRL)
When enabled, the Express 5110 varies the transmit clock rate to
temporarily limit the transmit data rate to the Express 5110.
RS-232
, and
.
9600
bps and
19.2, 38.4, 56, 64, 112, 128, 168
512
, and
kbps.
,
Protocol Options
Protocol options are not available when the Transparent BOP
protocol is enabled.
Protocol Address Table
Far End Port Number (FE PORT)
Enter the remote Express 5110 port number that the remote HDLC
device is connected to.
Outgoing DLCI (OUT DLCI)
Enter the DLCI address that indicates the virtual circuit used to
connect with the remote Express 5110.
6-14 Express 5110 User Manual 61202130L2-1
Bisync Protocol
The Bisync protocol option enables the Expr ess 5110 to connect IBM
2780/3780 bisync controllers to the host across frame relay. Both
point-to-point and multi-point configurations are supported.
The Express 5110 can decode both ASCII and EBCDIC character
sets and support CRC16, parity, VRC, and LRC error checking
methods. See Figure 6-7 for the Bisync protocol menu tree.
1 PROTOCOL 5 BISYNC
Chapter 6. DTE Port Configuration
1 DTE PORT 1
1 CONFIG 2 V.35
2 DTE PORT 2
2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
2 SYNCHRONOUS BIT RATE 1 2400 bps
3 SYNCHRONOUS BIT RATE 1 TRANSMIT FLAGS
4 HARDWARE FLOW CONTROL 1 OFF
3 PROTOCOL OPTIONS 1 EMULATION TYPE 1 PRIMARY
2 LINE TYPE 1 POINT-TO-POINT
3 TRANSLATION CODE 1 EBCDIC CRC 16
4 DATA FORMAT 1 NRZ
5 POLL/RESPONSE TIMEOUT 2 NRZI
6 POLL/RESPONSE TIMER
THRESHOLD
7 SLOW POLL RATIO <N:1> 1 UNIT ADDRESS
4 PROTOCOL ADDRESS TABLE 3 LLC2 DSAP
2 4800 bps
3 9600 bps
4 19.2 Kbps
5 38400 bps
6 56000 bps
7 64000 bps
2 TRANSMIT ALL ONES
2 ON
2 SECONDARY
2 MULTIPOINT
2 ASCII CRC 16
2 ASCII ODD PARITY VRC, LRC
3 ASCII EVEN PARITY VRC, LRC
2 LLC2 SSAP
4 OUTGOING DLCI
Figure 6-7. Bisync Protocol Menu Tree
61202130L2-1 Express 5110 User Manual 6-15
Chapter 6. DTE Port Configuration
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
and
Synchronous Bit Rate (RATE)
Select the operating speed of the DTE interface. These selections
are dependent upon the
Speed selections made for the Network Port affect the choices available for
the DTE ports.
Synchronous Idle Method (IDLE)
Enable the Express 5110 to transmit flags or all ones.
Hardware Flow Control (HDW FLOW CTRL)
When configured for the Bisync protocol, this parameter is always
enabled. The Express 5110 uses commands within the bisync
protocol to temporarily disable transmit data to the Express 5110.
RS-232
.
N
ETWORK PORT
speed.
Protocol Options
Emulation Type (EMUL TYPE)
For multi-point configurations, this entry defines primary or
secondary emulation. Set the Express 5110 connected to the host to
secondary and the Express 5110 connected to the 2780/3780
controller to primary.
Line Type (LINE)
Select a point-to-point or multi- point line type.
Translation Code
Define the character set and error checking algorithm to use. The
choices are EBCDIC CRC16, ASCII CRC16, ASCII odd parity VRC/
LRC, and ASCII even parity VRC/LRC.
Data Format (FORMAT)
Set the data format used by your equipment. The choices are
NRZ
RETURN-TO-ZERO
NRZI
(
).
6-16 Express 5110 User Manual 61202130L2-1
(
) and
N
ON-RETURN-TO-ZERO INVERTED
N
ON
-
Poll/Response Timeout (TIMEOUT)
For multi-point configurations, set the amount of time the Express
5110 waits for a poll response before issuing another poll.
Poll/Response Timer Threshold (THRESHOLD)
For multi-point configurations, set the maximum number of
response timeouts allowed before a session is terminated.
Slow Poll Ratio <N:1> (POLL RAT)
Determine how often devices on the Slow Poll List ar e polled. This
list is automatically managed based on poll timeouts. Initially, all
controllers are on the Normal list. When a controller times out a
fixed number of times, it is moved to the Slow Poll list. A controller
remains on this list until it responds properly to a poll.
The number entered is the number of times controllers on the
Normal list are polled before controllers on the Slow Poll list are
polled. Enter
Protocol Address Table
Unit Address (UNIT ADDR)
For a multi-point connection, enter the unit address used for
specific unit identification. The address may consist of a maximum
of seven alphanumeric characters. There must be one alphabetic
character for this parameter so the Express 5110 can use the upper
case version for the port address and the lower case version for the
select address.
Chapter 6. DTE Port Configuration
1 to disable this option.
LLC2 SSAP (LLC SSAP)
Defines a point-to-point connection on the network. For each
bisync SDLC connection, the SSAP of one Express 5110 should
match the DSAP on the other Express 5110.
LLC2 DSAP (LLC DSAP)
Define a point-to-point connection on the network. For each bisync
SDLC connection, the DSAP of one Express 5110 should match the
SSAP on the other Express 5110. See SNA/SDLC with Local Spoofing
on page 4-1 for a configuration example which demonstrates the
SSAP and DSAP arrangement.
Outgoing DLCI (OUT DLCI)
Enter the DLCI address used to connect with the remote device
across the frame relay network.
61202130L2-1 Express 5110 User Manual 6-17
Chapter 6. DTE Port Configuration
Edit Next Entry (NEXT key on front panel)
Edit the next entry in the address table.
Edit Previous Entry (PREV key on front panel)
Edit the previous entry in the address table.
Delete This Entry (DEL key on front panel)
Delete the current entry in the address table.
Add New Entry (ADD key on front panel)
Add a new entry to the address table.
6-18 Express 5110 User Manual 61202130L2-1
Chapter 6. DTE Port Configuration
Transparent Async Protocol (TRANS ASYNC)
Transparent Async pro tocol frames up async ch aracters to tran sport
across a frame relay network. This protocol is used when the
device connected to the Express 5110 is an async device such as a
terminal or PC. See Figure 6-8 for the Transparent Async menu
tree.
1 PROTOCOL 6 TRANSPARENT ASYNC
1 DTE PORT 1
1 CONFIG 2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
2 DTE PORT 2 2 V.35
1 2400 bps
2 ASYNCHRONOUS BIT RATE 2 4800 bps
3 9600 bps
4 19.2 Kbps
5 38.4 Kbps
3 DATA BITS 1 7
2 8
4 PARITY 1 NONE
2 EVEN
3 ODD
5 STOP BITS 1 1
2 2
6 HARDWARE FLOW CONTROL 1 OFF
2 ON
3 PROTOCOL OPTIONS N/A
4 PROTOCOL ADDRESS TABLE 1 FAR END PORT NUMBER 1 DTE PORT 1
2 OUTGOING DLCI 2 DTE PORT 2
Figure 6-8. T ransparent Async Protocol Menu Tree
The Express 5110 buffers async characters from the DTE device
until two idle characters or 100 characters are received. A frame
relay synchronous frame is constructed containing the data content
of each character. Frame relay frames received on the network
61202130L2-1 Express 5110 User Manual 6-19
Chapter 6. DTE Port Configuration
containing transparent async data are transmitted to the attached
device with the character format set under the DTE port physical
layer options.
No control lead status or break characters are transmitted across the frame
relay network.
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
and
Asynchronous Bit Rate (BIT RATE)
Select the operating speed to match the DTE device connected to
the Express 5110. The selections are
19.2
kbps, and
Data Bits
Select the byte length to match the DTE device connected to the
Express 5110. The choices are 7 and 8.
RS-232
38.4
.
kbps.
2400
bps,
4800
bps,
9600
bps,
Parity
E
Select
VEN
O
,
DD
, or
N
O PARITY
information. Set to match the DTE
device connected to the Express 5110.
Stop Bits
Select one or two stop bits. Set to match the DTE device connected
to the Express 5110.
Hardware Flow Control (HDW FLOW CTRL)
When enabled, the Express 5110 uses CTS to temporarily disable
transmit data to the Express 5110.
Protocol Options
Protocol options are not available when the
T
RANSPARENT ASYNC
protocol is selected.
6-20 Express 5110 User Manual 61202130L2-1
Chapter 6. DTE Port Configuration
Protocol Address Table
Far End Port Number (FE PORT)
Enter the remote Express 5110 port number that the remote device
is connected to.
Outgoing DLCI (OUT DLCI)
Enter the DLCI address that identifies the virtual circuit used to
connect with the remote Express 5110.
PPP Synchronous Proto col (PPP SYNC)
PPP Synchronous protocol provides a PPP device access to the
frame relay network and also routes IP traffic from the network to
the PPP device. See Figure 6-9 for the PPP synchronous menu tree.
Routing
Routing tables are formed through a combination of RIP and static
route entries. If RIP is used, routing tables are generated
dynamically. With static routing, the user is able to force
relationships. Static route tables are configured through the
R
OUTING
selection in the
C
ONFIG
menu.
IP
Static routing requires additional configuration (see the chapter IP
Routing for more information).
The port set for PPP Synchronous protocol routes and supports IP traffic
only.
61202130L2-1 Express 5110 User Manual 6-21
Chapter 6. DTE Port Configuration
1 PROTOCOL 7 PPP SYNCHRONOUS
1 DTE PORT 1
2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
2 DTE PORT 2 2 V.35
2 SYNCHRONOUS BIT RATE 4 19.2 Kbps
1 2400 bps
2 4800 bps
3 9600 bps
5 38.4 Kbps
6 56 Kbps
7 64 Kbps
8 112 Kbps
9 128 Kbps
10 168 Kbps
11 192 Kbps
12 224 Kbps
13 256 Kbps
14 280 Kbps
15 320 Kbps
16 384 Kbps
17 448 Kbps
18 512 Kbps
3 SYNCHRONOUS IDLE METHOD 1 TRANSMIT FLAGS
2 TRANSMIT ALL ONES
4 HARDWARE FLOW CONTROL 1 OFF
2 ON
3 PROTOCOL OPTIONS N/A
1 IP ADDRESS
4 PROTOCOL ADDRESS TABLE 2 SUBNET MASK
3 PEER IP ADDRESS
4 TRANSMIT RIP REQUESTS 1 NO
5 REPLY TO RIP REQUESTS 2 YES
Figure 6-9. PPP Synchronous Protocol Menu Tree
6-22 Express 5110 User Manual 61202130L2-1
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
and
Synchronous Bit Rate (RATE)
Select the operating speed of the DTE interface. The selections are
2400, 4800
192, 224, 256, 280, 320, 384, 448
Speed selections made for the Network Port affect the choices available for
the DTE ports.
Synchronous Idle Method (IDLE)
Enable the Express 5110 to transmit flags or all ones.
Hardware Flow Control (HDW FLOW CTRL)
When enabled, the Express 5110 varies the transmit clock rate to
temporarily limit the transmit data rate to the Express 5110.
RS-232
, and
.
9600
bps and
Chapter 6. DTE Port Configuration
19.2, 38.4, 56, 64, 112, 128, 168
512
, and
kbps.
,
Protocol Options
Protocol options are not available when the PPP Synchronous
protocol is enabled.
Protocol Address Table
IP Address (IP ADDR)
Enter the internet protocol (IP) address assigned to the Express 5110
for the DTE port.
Subnet Mask
Enter the subnet number assigned to the network formed by the
Express 5110 and the Peer PPP station.
Peer IP Address (PEER IP)
Enter the IP address of the attached PPP device.
Transmit RIP Requests (TX RIP)
E
NABLE
or
D
ISABLE
the Express 5110's transmission of routing
information protocol (RIP) messages. RIP broadcasts occur in
61202130L2-1 Express 5110 User Manual 6-23
Chapter 6. DTE Port Configuration
60 second intervals, advertising network addresses to the Peer PPP
device. Routing tables are generated from these broadcasts.
Reply to RIP Requests (RIP REPLY)
E
NABLE
or
Peer PPP device to issue RIP messages.
PPP Async Protocol
D
ISABLE
the Express 5110's reply to the request from the
PPP A
The
S
YNCHRONOUS PROTOCOL
connected to an async device. Special contr ol characters ar e used to
determine frame boundaries for the async channel. See Figure 6-10
for the PPP Asynchronous menu tree.
Routing
Routing tables are formed through a combination of RIP and static
route entries. If RIP is used, all routing tables are generated
dynamically. With static routing, the user is able to force
relationships. Static route tables are configured through the
R
OUTING
Static routing requires additional configuration (see the chapter IP
Routing for more information).
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
and
Asynchronous Bit Rate (BIT RATE)
Select the operating speed of the DTE interface to match the
connected device. The selections ar e
19.2
kbps, and
SYNC PROTOCOL
selection in the
RS-232
.
38.3
kbps.
functions the same as the
PPP
except for the port is in async format,
IP
C
ONFIG
menu.
2400
bps,
4800
bps,
9600
bps,
Data Bits
Select the byte length to match the connected asynchronous device.
The choices are 7 and 8.
6-24 Express 5110 User Manual 61202130L2-1
Chapter 6. DTE Port Configuration
Parity
Select
E
VEN
O
,
DD
, or
N
O PARITY
information. Set to match the
connected asynchronous device.
Stop Bits
Select one or two stop bits. Set to match the connected
asynchronous device.
Hardware Flow Control (HDW FLOW CTRL)
When enabled, the Express 5110 uses CTS to temporarily disable
transmit data to the Express 5110.
1 PROTOCOL 8 PPP ASYNC
1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
1 CONFIG 2 V.35
2 DTE PORT 2
1 2400 bps
2 ASYNCHRONOUS BIT RATE 2 4800 bps
3 9600 bps
4 19.2Kbps
5 38.4 Kbps
3 DATA BITS 1 7
2 8
4 PARITY 1 NONE
2 EVEN
3 ODD
5 STOP BITS 1 1
2 2
6 HARDWARE FLOW CONTROL 1 OFF
2 ON
3 PROTOCOL OPTIONS N/A
1 IP ADDRESS
4 PROTOCOL ADDRESS TABLE 2 SUBNET MASK
3 PEER IP ADDRESS
4 TRANSMIT RIP REQUESTS 1 NO
5 REPLY TO RIP REQUESTS 2 YES
Figure 6-10. PPP Asynchronous Protocol Menu Tree
61202130L2-1 Express 5110 User Manual 6-25
Chapter 6. DTE Port Configuration
Protocol Options
Protocol options are not available when the
protocol is enabled.
Protocol Address Table
IP Address (IP ADDR)
Enter the internet protocol (IP) address of the Express 5110 DTE
port.
Subnet Mask
Enter the subnet number of the network formed by the Express
5110 and the Peer PPP station.
Peer IP Address (PEER IP)
Enter the IP address of the attached PPP device.
Transmit RIP Requests (TX RIP)
Enable or disable the Express 5110's transmission of routing
information protocol (RIP) messages. RIP broadcasts occur in 60
second intervals, advertising network addresses to the Peer PPP
device. Routing tables are generated from these broadcasts.
Reply to RIP Requests (RIP REPLY)
Enable or disable the Express 5110's reply to the request from the
Peer PPP device to issue RIP messages.
PPP A
SYNCHRONOUS
Slip Protocol
The Slip Protocol is an asynchronous protocol which encapsulates
and routes IP traffic to and from a SLIP device. Special control
characters are used to define frame boundaries. See Figure 6-11 on
page 6-28 for the Slip menu tree.
Routing
Routing tables are formed through a combination of RIP and static
route entries. If RIP is used, all routing tables are generated
dynamically. With static routing, the user is able to force
relationships. Static route tables are configured through the
R
OUTING
6-26 Express 5110 User Manual 61202130L2-1
selection in the
C
ONFIG
menu.
IP
Static routing requires additional configuration (see the chapter IP
Routing for more information).
Physical Layer Options
Interface Type (CONN)
Select the connector type for the DTE interface. The choices are
V.35
and
Asynchronous Bit Rate (BIT RATE)
Set the operating speed of the DTE interface to match the connected
device. The selections are
38.4
and
Data Bits
Set the byte length to match the connected asynchronous device.
The choices are 7 and 8.
Parity
Select
connected asynchronous device.
E
VEN
RS-232
kbps.
O
,
DD
.
, or
2400
N
O PARITY
Chapter 6. DTE Port Configuration
bps,
4800
bps,
9600
bps,
19.2
information. Set to match the
kbps,
Stop Bits
Select one or two stop bits. Set to match the connected
asynchronous device.
Hardware Flow Control (HDW FLOW CTRL)
When enabled, the Express 5110 uses CTS to temporarily disable
transmit data to the Express 5110.
61202130L2-1 Express 5110 User Manual 6-27
Chapter 6. DTE Port Configuration
1 PROTOCOL 9 SLIP
1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS 1 INTERFACE TYPE 1 RS232
1 CONFIG 2 V.35
2 DTE PORT 2
2 ASYNCHRONOUS BIT RATE 2 4800 bps
3 DATA BITS 1 7
4 PARITY 1 NONE
5 STOP BITS 1 1
6 HARDWARE FLOW CONTROL 1 OFF
3 PROTOCOL OPTIONS N/A
1 2400 bps
3 9600 bps
4 19.2Kbps
5 38.4 Kbps
2 8
2 EVEN
3 ODD
2 2
2 ON
1 IP ADDRESS
4 PROTOCOL ADDRESS TABLE 2 SUBNET MASK
3 PEER IP ADDRESS
4 TRANSMIT RIP REQUESTS 1 NO
5 REPLY TO RIP REQUESTS 2 YES
Figure 6-11. Slip Protocol Menu Tree
Protocol Options
Protocol options are not available when the
SLIP
protocol is
enabled.
Protocol Address Table
IP Address (IP ADDR)
Enter the internet protocol (IP) address of the Express 5110 DTE
port.
6-28 Express 5110 User Manual 61202130L2-1
Chapter 6. DTE Port Configuration
Subnet Mask
Enter the subnet number of the network formed by the Express
5110 and the Peer SLIP station.
Peer IP Address (PEER IP)
Enter the IP address of the attached SLIP device.
Transmit RIP Requests (TX RIP)
Enable or disable the Express 5110's transmission of routing
information protocol (RIP) messages. RIP broadcasts occur in 60
second intervals, advertising network addresses to the Peer SLIP
device. Routing tables are generated from these broadcasts.
Reply to RIP Requests (RIP REPLY)
Enable or disable the Express 5110's reply to the request from the
Peer SLIP device to issue RIP messages.
61202130L2-1 Express 5110 User Manual 6-29
Chapter 6. DTE Port Configuration
6-30 Express 5110 User Manual 61202130L2-1
Chapter 7
Configuring the Network
Port
NETWORK PORT
Access the
from the
The network port is always used in frame relay protocol
configurations. The network port terminates the user end of the
frame relay UNI interface. The Express 5110 supports three
standard PVC signaling formats: LMI, ANSI T1.617-D, and ITU
Q.933-A. The selected signaling format is used to poll the network
end of the UNI interface and retrieve virtual circuit information.
Optionally the polling process can be disabled.
User data is encapsulated into standard frame relay formatted
frames using two methods. FRF 3.1 IA procedures are used for IP
and LLC2 protocols while a proprietary method is used for
transparent protocol mode. Virtual circuit sharing is allowed for
both methods.
Configure the Network Port before the DTE Ports. Selections made will
affect the choices available for the DTE ports.
N
ETWORK PORT
C
ONFIGURATION
menus by selecting
menu. See the menu tree in Figure 7-1.
N
ETWORK PORT
61202130L2-1 Express 5110 User Manual 7-1
Chapter 7. Configuring the Network Port
Connection
Connection is made through the internal DDS 56/64 DSU.
When connecting to an external DSU, the Express 5110 emulates an externally timed DTE interface connected direc tly to the DCE interface of
the external device. Therefore, the connection between the Express 511 0
and the DSU is a direct connection.
1 INTERFACE TYPE 2 V.35
1 RS232
3 NETWORK
1 DTE PORT 1 2 PHYSICAL LAYER OPTIONS
2 DTE PORT 2 2 64k
1 CONFIG 3 NETWORK PORT
4 IP ROUTING
5 SYSTEM CONFIG 2 LMI
1 LOOP RATE (available when NETWORK interface type is selected) 156k
2 CLOCK SOURCE (available when
NETWORK interface type is selected) 1 MASTER
1 NETWORK BIT RAT E (available
when RS232 or V.35 interface is selected)
1 SIGNALING TYPE 1 NONE
3 FRAME RELAY OPTIONS 2 T391 3 ANSI T1.617-D
4 LLC2 OPTIONS 1 LLC2 ACK TIMEOUT
5 IP ADDRESS 3 LLC2 k WINDOW SIZE
6 SUBNET MASK 6 LLC2 REJECT TIMEOUT
7 TRANSMIT RIP REQUESTS 1 NO
8 PROCESS RECEIVED RIP PACKETS 2 YES
9 PRIORITY QUEUE RATIO (N-1)
3 N391 4 ITU-T Q.933-A
4 N392
5 N393
6 REMOTE FECN NOTIFICATION 1 DO NOT NOTIFY
2 LLC2 N2 RETRY COUNTER
4 LLC32 POLL TIMEOUT
5 LLC2 BUSY TIMEOUT
7 LLC2 KEEP-ALIV E T IMEOUT
2 FROM NETWORK
56K and 64K avaialbe for
RS232 and V.35 in t erfaces.
Additional rates of 112K through
512K available for V.35 interface.
2 NOTIFY REMOTE ON FECN
Figure 7-1. Network Port Configuration Menu Tree
7-2 Express 5110 User Manual 6120213 0L2-1
Chapter 7. Configuring the Network Port
When configuring from a VT 100 terminal, the screen in Figure 7-2
will appear when Network Port is selected.
In this chapter, the VT 100 selections are listed first followed by the Front
Panel selections (if the names differ).
Figure 7-2. VT 100 Network Port Configuration Menu
Interface Type (INT TYPE)
Select the connector type for the network interface. The choices ar e
V.35
will appear. Select
Physical Layer Options (PHYS LYR OPT)
The following physical layer options are available when the
internal DSU is selected as the interface type:
Loop Rate
Select a loop rate of either
61202130L2-1 Express 5110 User Manual 7-3
and
RS232
. If the internal DSU is installed, the
N
to operate the internal DSU.
ET
56
K
or
64
.
K
N
ET
selection
Chapter 7. Configuring the Network Port
Clock Source
Configure the Express 5110 clocking source as either the master or
slave (usually slave).
The following physical layer option is available when the selected
interface type is
V.35
or
RS232
Bit Rate
Select the bit rate that closely matches the clock rate supplied by the
external DSU. The choices are
type is selected. Additional choices of
224
256
280
320
384
,
K
the
,
,
K
K
V.35
interface is selected.
,
K
Frame Relay Options (FR OPT)
:
56
448
,
K
and
K
K
64
112
, and
RS232
when
K
128
K
512
,
168
,
K
are available when
K
interface
192
,
K
,
K
The VT 100 screen in Figure 7-3 appears when
O
PTIONS
is selected from the
N
ETWORK PORT CONFIGURATION MENU
F
RAME RELAY
Figure 7-3. VT 100 Network Port Frame Relay Options Menu
.
7-4 Express 5110 User Manual 6120213 0L2-1
Chapter 7. Configuring the Network Port
Signaling Type (SIGNAL)
Set the signaling type option to match the network signaling type.
T391
Set the time between polls to the frame relay network.
N391
Determine how many link integrity polls occur in between full
status polls.
N392 and N393
These parameters define the error thr e shold fo r the UNI fo rmed by
the Express 5110 network port and the frame relay switch. If the
error threshold is met, the signaling state status is changed to
down, which indicates a service-affecting condition. This condition
is cleared once N393 consecutive error-free events are received.
N392 defines the number of errors required in a given event
window, while N393 defines the number of polling events in each
window.
For example:
If N392=3 and N393= 4, then if three errors occur within any four
events the interface is determined inactive.
The status of the connection can be viewed in the
N
under
ETWORK PORT SIGNALING STATE
. The status will return to
S
TATUS
menu
active again once the threshold is no longer exceeded.
Remote FECN Notification (RFECN)
Enable/disable the Express 5110 to issue remote FECN (forward
explicit congestion notification). This feature ensures that a frame
will be generated in the reverse direction upon receiving a frame
with the FECN bit enabled. This is a proprietary feature with
ADTRAN Express 5110s and can only be used with an ADTRAN
Express 5110 on both ends of the virtual circuit.
The network service provid er should recommend the values entered into
the T391, N391, N392, and N393 fields.
61202130L2-1 Express 5110 User Manual 7-5
Chapter 7. Configuring the Network Port
LLC2 Options (LLC2 OPT)
The VT 100 screen in Figure 7-4 appears when LLC2 (Logical Link
Control Type 2) Options is selected from the Network Port
Configuration menu.
LLC2 ACK Timeout (ACK TO)
Timeout value used by the LLC2 protocol to establish the
maximum time to wait for a positive acknowledgment from a
remote device.
LLC2 N2 Retry Counter (N2 RETRY)
Maximum retries for actions timed by the ACK poll, busy or reflect
timers. When N2 is exceeded, a reset condition occurs.
LLC2 k Window Size (WND SIZE)
Maximum number of outstanding unacknowledged data frames
that the LLC2 protocol will allow.
LLC2 Poll Timeout (POLL TO)
Maximum time to wait for a response to a command having the
poll bit set.
LLC2 Busy Timeout (BUSY TO)
Length of time the LLC2 protocol will wait for a remote device to
clear a busy state before querying it with an RR (receiver ready)
command.
LLC2 Reject Timeout (REJECT TO)
Maximum time the LLC2 protocol will wait for a reject response
after issuing a reject command.
LLC2 Keep-Alive Timeout (KA TO)
Optional tool for detecting the status of an LLC2 connection.
7-6 Express 5110 User Manual 6120213 0L2-1
Figure 7-4. VT 100 Network Port LLC2 Options Menu
Local IP Address (LOCAL IP ADDR)
Enter the internet protocol (IP) address of the Express 5110
Network port.
Chapter 7. Configuring the Network Port
Subnet Mask
Enter the subnet number of the network formed by the Express
5110 and the other FRADs/routers across the frame relay network.
Transmit RIP Requests (XMIT RIP)
E
NABLE
information protocol (RIP) messages. RIP broadcasts occur in 60
second intervals, advertising network addresses to the peer routers
or FRADs. Routing tables are generated from these broadcasts.
or
D
ISABLE
the Express 5110's transmission of routing
Process Received RIP Packets
E
NABLE
peer routers or FRADs to issue RIP messages.
61202130L2-1 Express 5110 User Manual 7-7
or
D
ISABLE
the Express 5110's reply to the request from the
Chapter 7. Configuring the Network Port
Priority Queue Ration (N:1)
Define the ratio that SDLC frames have over ot her pr otocols. SDLC
protocols are processed each time the network port transmitter is
serviced. Other protocols are processed every N times the SDLC
protocol is processed. Set to
1 to enable equal priority.
7-8 Express 5110 User Manual 6120213 0L2-1
Chapter 8
IP Routing
IP ROUTING WITH THE EXPRESS 5110
The Express 5110 contains an IP router function to resolve paths for
IP packets received. This function is used regardless of
encapsulation protocol and port received from.
The heart of the routing system is a routing table which can be
generated manually, automatically, or a combination of the two.
Manual entry is preferred in cases where there a re few routes. This
minimizes traffic created by routing protocols used in the
automatic method. The automatic method cuts down on manual
entry for large route tables and allows for routes to be changed
without service interruption.
Another important element in routing is the default gateway ro ute.
This is used while routes are being formed automatically and is a
convenient way to direct all IP packets in cases where only one
route is needed.
Routing internet protocol (RIP) can be enabled for each port
configured for IP encapsulation. The Tx RIP para meter enables th e
Express 5110 to share the internal routing table with other routers
and FRADs attached to the port. The Rx RIP parameter enables the
Express 5110 to process routing table information from other
routers and FRADs attached to the port.
In addition to RIP, the network port uses inverse ARP (RFC 1490) to
associate peer router/FRAD IP addresses to PVC addresses. The
Express 5110 can also respond to requests from peer routers/
61202130L2-1 Express 5110 User Manual 8-1
Chapter 8. IP Routing
FRADs seeking an association for their tables. The transmit and
receive inverse ARP section can be independently enabled.
Access IP Routing selections by first choosing
from the
C
ONFIGURATION
M
menu. Then choose
AIN
menu. When using the VT 100 terminal interface,
I
P ROUTING
1 C
ONFIGURATION
from the
the screen in Figure 8-1 will appear. Full menu trees for these
selections are shown in Figure 5-2 on page 5-3 and Figure 5-3 on
page 5-5.
Figure 8-1. VT 100 IP Route Menu
8-2 Express 5110 User Manual 6120213 0L2-1
IP Route Table
Use these menu options to build a table of addresses for routing
data packets based on their IP address. When a packet with the
specified IP address is received, it is sent out through the selected
port on the specified DLCI. See Figure 8-2.
The IP route table can be used in conjunction with RIP protocol to
provide routing paths for the entire IP network. If an IP packet is
received with a destination IP not located in the internal routing
table (static or RIP), then the gateway route is used.
Chapter 8. IP Routing
Figure 8-2. IP Routing Table Menu
61202130L2-1 Express 5110 User Manual 8-3
Chapter 8. IP Routing
Example Route Table Entry
IP Address=192.239.232.0
Destination Port=Network Port
Destination DLCI=16
This example provides a route for IP address range 192.239.232.1
through 192.239.232.254 using the network port and virtual circuit
16. See the following parameter descriptions.
IP Address (IP ADDR)
Enter the IP address to be routed. This entry identifies an
individual host or an entire subnet. To address an entire subnet,
enter a value with the host portion equal to
Destination Port (DST PORT)
Select the port on the Express 5110 used to transmit the packets
with the specified IP address.
Destin ation DLCI (DST DLCI)
Enter the virtual circuit to be used when the network port is part of
the destination IP path. This selection is only applicable if the
corresponding destination port element is set for
0.
N
ETWORK
port.
Edit Next Entry (NEXT Key on Front Panel)
Edit the next entry in the address table.
Edit Previous Entry (PREV Key on Front Panel)
Edit the previous entry in the address table.
Delete This Entry (DEL Key on Front Panel)
Delete the current entry in the address table.
Add New Entry (ADD Key on Front Panel)
Add a new entry to the address table.
8-4 Express 5110 User Manual 6120213 0L2-1
Gateway IP Address (GW IP ADD)
Enter the Gateway IP address. If an IP packet with an unknown IP
address is received, the Express 5110 sends it to the Gateway
(which is a router or another FRAD).
Gateway Port (GW PORT)
Enter the port from which the gateway can be reached.
Gateway DLCI (GW DLCI)
Chapter 8. IP Routing
If the gateway port is set to
virtual circuit used to reach the gateway.
N
ETWORK
, this parameter identifies the
Transmit ARP Requests (TX ARP)
This parameter enables the transmit portion of the network port
inverse ARP protocol. If enabled, inverse ARP messages will be
sent to every DLCI assigned to the network port each ARP refresh
time period and inverse ARP responses will be generated.
Process Received ARP Packets (RX ARP)
This parameter enables the receive portion of the network port
inverse ARP protocol. If enabled, all inverse ARP messages
received are used to associate peer IP addresses with DLCI values.
ARP Refresh Time (ARP REF)
Determine how often an inverse ARP request is sent to every DLCI
assigned to the network port.
ARP is used in conjunction with RIP to dynamically resolve IP routes
and should be enabled if RIP is enabled.
61202130L2-1 Express 5110 User Manual 8-5
Chapter 8. IP Routing
8-6 Express 5110 User Manual 6120213 0L2-1
Chapter 9
System Configuration
SYSTEM CONFIG
Access
C
C
for the
on page 3-3 and Figure 5-3 on page 3-5.
. The VT 100
S
YSTEM CONFIGURATION
ONFIGURATION
ONFIGURATION
S
YSTEM CONFIGURATION
S
selections by first choosing 1
from the
from the
YSTEM CONFIGURATION
M
menu. Then choose
AIN
C
ONFIGURATION
selections are shown in Figure 5-2
Figure 9-1. System Configuration Menu
S
menu. Full menu trees
menu is shown in Figure 9-1.
YSTEM
61202130L2-1 Express 5110 User Manual 9-1
Chapter 9. System Configuration
Change Password
Enter a new password of nine digits or less. The default password
is adtran.
Read Community (RD COM)
Enter the authentication strings used for SNMP management.
Match the Express 5110 to the SNMP manager for read privileges.
Write Community (WR COM)
Enter the authentication strings used for SNMP management.
Match the Express 5110 to the SNMP manager for write privileges.
Trap Manager DLCI (TRAP DLCI)
If the trap manager port is set for
identifies the virtual circuit used for all traps generated by the
Express 5110. (This option is found under
O
PTIONS
.)
N
ETWORK
T
Trap Manager IP Address (TRAP IP ADDR)
Enter the IP address of the SNMP manager to which the Express 5110
sends traps. (This opti on i s fou nd und er
T
RAP MANAGER OPTIONS
Trap Manager Port (TRAP PORT)
Enter the Express 5110 port number used to transmit traps to the
SNMP manager. (This option is found under
O
PTIONS
.)
Support Fragmentation (SUPPORT FRAG)
When running voice applications, this should be enabled. With
fragmentation enabled, large frames are fragmented to maintain
voice quality in the presence of large data frames.
, this parameter
RAP MANAGER
T
RAP MANAGER
.)
9-2 Express 5110 User Manual 6120213 0L2-1
Chapter 10
Statistics
For descriptions of the VT 100 statistics menus see the following
section, Viewing Statistical Information with the VT 100 Interface. For
front panel menu descriptions, see View ing Statistical Information
with the Front Panel Interface on page 10-8
Viewing Statistical Information with the VT 100 Interface
V
Select
S
view port (
Select
IEW STATISTICS
TATISTICS
R
ESET STATISTICS
from the
menu shown in Figure 10-1. From this menu, select to
D
TE
or
N
ETWORK
to clear all current i nformat ion.
M
menu to access the
AIN
P
),
ROTOCOL
Figure 10-1. View Statistics Menu
, or
S
YSTEM
statistics.
V
IEW
61202130L2-1 Express 5110 User Manual 10-1
Chapter 10. Statistics
DTE and Network Port Statistics
Current Statistics
The following sections describe the information given on the
P
ORT
and
N
ETWORK
P
statistics menus. See Figures 10-2
ORT
DTE
through 10-5.
Information given is for the selected port since the last clear.
Leads On
If a lead has become active on the selected por t sin ce the last screen
refresh, it is listed in the
V
IEW STATISTICS
menu. See Figure 10-3.
RTS Request to send
DTR Data terminal ready
CTS Clear to send
DSR Data set ready
DCD Data carrier detect
Total
Totals given are for the selected port since the last clear.
Rx Frames Received frames
Tx Frames Transmitted frames
Rx Bytes Received bytes
Tx Bytes Transmitted bytes
Errors
Counts given for the following errors are f or the selected port since
the last clear:
Rx Errored Frames Frames dropped due to one or more er-
rors.
CRC Errors Frames received with CRC16 violations
(not available when Trans Async protocol is selected.)
10-2 Express 5110 User Manual 61202130L2-1
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