User Guide
 United States Government Legends
 Contents
 Rapid Configuration
Power-Up
Normal operation Fast Ethernet Status Indicators
Parameter Entry Quick Key Functions Menu Index
 Display Broadcast Throttling Attributes
Remove a Static Address from FDB Display STP Enable Status
Fast Ethernet Port Attributes and Statistics
Display Bridge STP Attributes
 Display Current LEC Configuration
Managing ATM Resources
 Enable/Disable Event Messages 10-14
Display Snmp Configuration
Update NMS IP Address
Display Software Version 10-2
 12 ATM, LAN EMULATION, and Virtual Lans
12-7
 12-15
12-14
Bridge Frame Forwarding Logic
13-5
 Fast Ethernet Card Specifications Physical C-1
 Glossary
 Guide
About this Guide
If you are looking for information about Turn to
 Conventions
Conventions
Tables 1 and 2 list conventions used throughout this guide
7600 Card Documentation and Related Manuals
 7600 Card Documentation Road Map
If you want to Read
 Card
Overview of the 7600 Card
About
Card
 Front Panel of the 7600 Card with full configuration
 3Physical module with SC connector for fiber ports
Capabilities
 4CHAPTER 1 Overview of the 7600 Card
 Typical Applications of the 7600 Card
 5Fast Ethernet backbone
 Server farm
 Starting UP
 Installation and POWER-UP
Safety Precautions
 Mesures de sécurité
 Vorsichtsmaßnahm en
 Removing
Installing
Card Modules
 Connection to a workstation or other DTE, using a normal
Connecting to
Network Devices
 Local Management
Connecting to a
Terminal
 States
System Power green Fail red Active orange
Card System
How they are indicated on the LED display
 When the 7600 Card is powered-up, it automatically begins
Power-Up
Power-up phase and initiates the Power-On Self-Test
Mode Meaning and User Action
 4Fast Ethernet Port LEDs
LED Color Meaning
 Configuration
Fast Setup
Rapid
 Full Setup Mode
Setup
Setup Modes
CELLplex
 Setup Mode Selection
Switch Setup Mode
Setting Special Parameters
 Setup Section Description
1Integrated Fast Setup Procedure Sections
2Setup Procedure Navigation Aids
Sections
 Operation
Integrated Fast Setup is initiated from the LMA Main Menu
Select the menu item 9 FST Fast Setup
CELLplex 7000. The CELLplex Main Menu appears as follows
 Example Dialog The following dialog appears on the screen
Network Prefix Section
 Lecs Address Section
LE Parameters Section
UNI/NNI Parameters Section
 LE Client Configuration Section
Virtual Network Configuration Section
 Admin VN Management Configuration Section
Confirmation Dialog Section
 Port Context
Setup to perform a rapid configuration of the 7600 Card
Multi-context Fast
Contex
 4Setup Procedure Navigation Aids
Type To go to
 Admin Main Menu appears as in the following example
 Elan Configuration Section
Management Configuration Section
 System Mode Configuration Section
New configuration is displayed for this context
 Card Management Tasks
 Management
Local Management Basics
Menu Hierarchy
 Main menu
 Example
Keying in this submenu’s 4 option gives you the prompt
 Entry of the stp submenu’s 3 option produces the prompt
Finally, entering 1 finalizes the prompt as
 2Menu Navigation Functions
3Editing Aids
 Menu hierarchy
Menu Index
System Management Menu
 Bridge Menu
ATM Menu
 LAN Emulation Menu
 Virtual LAN Menu
Network Management Menu
 Display Current
Configuring Virtual Lans
Configuring Bridges
Bridge
 Ethernet Port to
2Bridge Configuration Parameters
Attach Fast
Enter 6 Following is displayed
 Fast Ethernet port #3 is attached to bridge #1
Attach Internal
ATM Port to Bridge
Internal ATM port is attached to bridge #0
 Managing Ethernet Bridges
Management Tasks
Managing Fast Ethernet Ports
Managing the Bridge Forwarding Database
 Statistics
Fast Ethernet Port
Attributes
Managing the Spanning Tree Protocol Bridge-wide
 4Ethernet Port Statistics
3Fast Ethernet Port Characteristics
2Ethernet Port Attributes
Name Description
 Following information for Port #1 is displayed
1Fast Ethernet Port Attributes and Statistics Display
 Display Broadcast
Disable a Fast
Ethernet Port
Throttling
 Threshold
Enable/Disable
Broadcast Throttling
 9Task Actions
10Task Actions for Fx Port Type
 Example 2 for Fx port type
Example 1 for Tx port type
Fast Ethernet Tx port #1 is set to half duplex
11Task Actions for Tx Port Type
 13Bridge Attributes and Statistics
3Bridge Attributes and Statistics Display
 Time
Update
Bridge-aging
Bridge-port
 16Bridge-port Attributes and Statistics
4Bridge Attributes and Statistics Display
 Database
Display All Entries
Forwarding
17 Task Actions
 5Forwarding Database Display
 Learning Station Addresses on
Display Learned
Entries
19 Task Actions
 Forwarding Database see Static Addresses on
Display Static
21Task Actions
 22Static Table Fields
 23Hexadecimal Codes for Displaying Multiple Bridge Ports
Static Addresses Allowed-to Binary Table
Bridge Ports Hex Value Bridge Ports Hex Value
 7Static Table Display
 Address
Block a Static
Static Forwarding Database of bridge #0, the MAC address
 Ports #4
Remove a Static
Address from FDB
Database see Static Addresses on
 About the STP enable status see Disabling the STP on
Display STP Enable
Disable STP on
Status
 30Bridge STP Attributes
 STP attributes for bridge #0 is displayed as follows
9Bridge STP Attributes Display
 Bridge-wide STP
Parameters
 Bridge-forward-delay for bridge #0 is set to 1500 secs
Update Bridge-forward Delay
Example Enter
 STP Attributes
36Bridge-port STP Attributes
 Attributes of port #1 of bridge #0 are displayed as follows
10Bridge-port STP Attributes Display
 Bridge-path-cost
Bridge-path-cost for port #1 of bridge #0 is set to
 Manage ATM port
Update ATM parameters
Managing ATM Resources
Manage Bridge ATM addresses
 Enter 4
Display ATM Port Attributes Statistics
2ATM Port Attributes and Statistics
 4ATM Address Fields
Following sample ATM statistics report is displayed
Field Description
 Following is a sample ATM address display
2ATM Address Display
 More information about Traffic Management in the 7600 Card
Display TM
5Task Actions
 Enable TM
Toggles TM operation on and off
 TM remote Client Database is displayed as follows
Characteristic Range Default Meaning
9Task Actions
 Add TM Client
Information see Display TM Clients on
 Up to enable the ATM port or down to disable the ATM port
Enable/Disable ATM
Port Admin Status
Selected version is saved in flash
 Context #0 Event ATM port Link Up
 Display statistics
Manage configuration parameters
Managing LAN Emulation Clients
Manage operational parameters
 Manage data-frame parameters
Update Unknown Unicast-flood- Mode
Display LEC
Transmission over an Elan on
 Enter 5 1
 Lecs Information Description
4LEC Configuration and Status Information
LES Information Description
 2LEC Configuration and Status Display
BUS Information Description
 See LAN Emulation Overview on
Update Lecs
Enter the bridge number and ATM address or ! to invalidate
Elan name for the LEC of bridge #0 is entered
 LES address for the LEC of bridge #0 is entered
Enable Lecs
Address via Ilmi
LAN Emulation Overview on
 10LEC Operational Parameters
Operational
10. For more information see LEC Parameters on
LEC Parameter Description
 VCC-timeout-period, aging-time, forward-delay-time
Update LEC
Update the LEC operational parameters control-timeout
Control-timeout parameter in seconds
 Enter 533 0
 Enter 535 0
 18Task Actions
 19Task Actions
 Connections on
Control-frame
Refer to -21. For more information see Emulated LAN
20Task Actions
 Enter 54
 16CHAPTER 8 Managing LAN Emulation Clients
 Mode
Update Unknown
Unicast-flood
Unknown Unicast Frames on
 LE flood mode for Bridge #0 is now NotFlood
 Setting Network Parameters
Display Snmp Configuration Update NMS IP Address
 2IP Configuration Information
Display Current IP
 Default Gateway for the specified bridge
Update Default
IP Address for bridge #0 is updated to
Default Gateway for bridge #0 is updated to
 Mask
Update Subnet
Display Snmp
 Update NMS IP
Traps
 Managing System Functions
 Version
Resetting system
Display Software
Manage event messages
 Download
Download Status
Software from Network
 Software from
Erase Software
From Flash
Local
 Display Hardware Configuration
 Current system configuration mode
Set System
 After the next reset
Forward Mode
Set Store-and
 For descriptions of the timeout parameters
Display Timeout
9Timeout Parameters
 Following is a sample timeout parameters report
 CPI
 Update Hardware
Delays
Timeout Delay
 Update Software
Software timeout mechanism
 Updated
Password
Write-access
 Admin-access
Event Messages
 System hardware is reset and device is rebooted
Enter 1
 III 7600 Card Capabilities
 Overview
Ethernet
 Fast Ethernet
 10/100 Mbps transmission speed
Full or Half Duplex Mode
Auto-negotiation
 2Cable Support by Transceiver Type
10 or 100 Mbps Speed
Transceiver type Cable type Number Pairs fibers
 Fast Ethernet Ports
 11-6CHAPTER 11 Ethernet Lans and Bridges in the 7600 Card
 Transparent Bridges
 Address of a bridge port, called Self
Spanning Tree
Protocol
Can be defined as follows
 Spanning Tree Protocol
 Designated Bridge on a LAN Spanning Tree port selection
 3Port-independent Bridge Parameters
Parameters in -4 are set for individual bridge ports
4Port-dependent bridge parameters
 11-12CHAPTER 11 Ethernet Lans and Bridges in the 7600 Card
 Virtual Lans
ATM Overview
 ATM Basics
 Virtual Channels
 Interim Local
Interface Ilmi
 LAN Emulation
 BUS
 LAN Emulation
Emulated LAN
Connections
Control VCCs
 Illustrates the VCCs active among LAN Emulation Components
 3LEC Configuration and Status Information
Elan Name
 Both local and remote destination LANs in the ATM network
Bridges
Bridge acts like a standard transparent bridge
 2Bridges in the 7600 Card
 12-12CHAPTER 12 ATM, LAN EMULATION, and Virtual Lans
 Bridges in the 7600 Card
 Entry obtained by Topology flag Aged by
 Mode Bridge action
Unknown unicast flooding mode
5Unknown Unicast Flooding Mode
Data Transmission over an Elan
 Flush protocol
Parameter Description Minimum Default Maximum
LEC Parameters
Be set by management
 Virtual LANs
 12-18CHAPTER 12 ATM, LAN EMULATION, and Virtual Lans
 Virtual LANs in the 7600 Card
 12-20CHAPTER 12 ATM, LAN EMULATION, and Virtual Lans
 Workgroups
Each vLAN communicates with its server
 6Logical and Physical View of a Network With vLANs
 Topics are discussed
ATM Network
How Traffic Management is implemented within the 7600 Card
 1Example of a source to destination ABR control loop
 This congestion information
Traffic
Management Concepts
Generate backward RM-cells
 Traffic
Functions
 7600 Card checks connected devices for Traffic Management
Configuration
ATM technology without having cell loss due to congestion
Found in the connected device
 13-6CHAPTER 13 Traffic Management in the ATM Network
 As shown. The traffic management is performed as follows
2Traffic Management control steps
 Device Management
Protocols
 In-Band
Out-of-Band
 Local Management
 27600 Card Administration Console
 Snmp Agents
 Bridge MIB AToM MIB LE Client MIB
Management Information Bases MIBs
Interface Evolution MIB Ncdchass MIB private
 Security
 5Local Management Protocol Access
 Tuning
Store-and-Forward Mode
 Card for extended periods of time. This usually occurs when
Timeout Tuning
Cut-Through Mode
Terminating them as erred frames
 Console Passwords
 On-Line Technical
Services
Service
3Com Bulletin Board
 Press Enter to see the Ask3Com main menu
Table A-2Automated Fax Service
Country Fax Number
 Table A-3Telephone Support
Country Telephone Number
 Table A-5Obtaining an RMA Number
Table A-6Local Access Numbers
Table A-4Network Supplier Support
Country Telephone Number Fax Number
 Troubleshooting
 Cleaning Dirty Fiber Optic Cables
 Related Diagnostic Procedures
 Physical
Fast Ethernet Card C Specifications
Fast Ethernet Switching
Interfaces
 Indicators
Environmental
 Standards Compliance
 Glossary
 Equipment DCE
 Interface NNI
 Call
Out-of-band
Point-to-point call
Protocol
 Interface UNI
 Index
Numbers
 BUS
 Elan
 LEC ID
 NNI
 STP
 VCC
 Index