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