Software Guide
Page 3
... xxvii Ordering Documentation xxvii Documentation Feedback xxviii Obtaining Technical Assistance xxviii Cisco.com xxviii Technical Assistance Center xxix Obtaining Additional Publications and Information xxx Product Overview 1-1 Catalyst 4000 Series Switches 1-1 Catalyst 2948G Switch 1-2 Catalyst 2980G Switch 1-3 Supervisor Engine Software 1-3 Using the Command-Line Interface 2-1 Switch CLI Overview 2-1 Accessing the Switch CLI 2-2 Accessing the CLI Through the Console Port 2-2 Accessing the...
... xxvii Ordering Documentation xxvii Documentation Feedback xxviii Obtaining Technical Assistance xxviii Cisco.com xxviii Technical Assistance Center xxix Obtaining Additional Publications and Information xxx Product Overview 1-1 Catalyst 4000 Series Switches 1-1 Catalyst 2948G Switch 1-2 Catalyst 2980G Switch 1-3 Supervisor Engine Software 1-3 Using the Command-Line Interface 2-1 Switch CLI Overview 2-1 Accessing the Switch CLI 2-2 Accessing the CLI Through the Console Port 2-2 Accessing the...
Software Guide
Page 4
Contents 3 C H A P T E R 4 C H A P T E R Using Command Aliases 2-7 Specifying Modules, Ports, and VLANs 2-7 Specifying MAC Addresses 2-8 Specifying IP Addresses, Host Names, and IP Aliases 2-8 ROM Monitor CLI 2-9 Example of a Catalyst 4003 Bootup Display 2-9 Configuring the Switch IP Address and Default Gateway 3-1 Understanding How the Switch Management Interfaces Work 3-1 Understanding How Automatic IP Configuration Works 3-2 Automatic IP Configuration Overview 3-2 Understanding...
Contents 3 C H A P T E R 4 C H A P T E R Using Command Aliases 2-7 Specifying Modules, Ports, and VLANs 2-7 Specifying MAC Addresses 2-8 Specifying IP Addresses, Host Names, and IP Aliases 2-8 ROM Monitor CLI 2-9 Example of a Catalyst 4003 Bootup Display 2-9 Configuring the Switch IP Address and Default Gateway 3-1 Understanding How the Switch Management Interfaces Work 3-1 Understanding How Automatic IP Configuration Works 3-2 Automatic IP Configuration Overview 3-2 Understanding...
Software Guide
Page 9
...VTP Version 3 Takeover 9-28 Disabling VTP Version 3 on a Per-Port Basis 9-29 VTP Version 3 show Commands 9-29 Configuring VLANs 10-1 Understanding How VLANs Work 10-1 VLAN Ranges 10-3 Configurable VLAN Parameters 10-4 VLAN... Default Configuration 10-4 VLAN Configuration Guidelines 10-5 Configuring VLANs on the Switch 10-6 Creating or Modifying an Ethernet VLAN 10-6 Creating or Modifying a Normal-Range Ethernet ...VLAN 10-7 Creating or Modifying an Extended-Range VLAN 10-9 Assigning Switch Ports to a VLAN 10-10 Mapping 802.1Q VLANs to ISL VLANs 10-11 ...
...VTP Version 3 Takeover 9-28 Disabling VTP Version 3 on a Per-Port Basis 9-29 VTP Version 3 show Commands 9-29 Configuring VLANs 10-1 Understanding How VLANs Work 10-1 VLAN Ranges 10-3 Configurable VLAN Parameters 10-4 VLAN... Default Configuration 10-4 VLAN Configuration Guidelines 10-5 Configuring VLANs on the Switch 10-6 Creating or Modifying an Ethernet VLAN 10-6 Creating or Modifying a Normal-Range Ethernet ...VLAN 10-7 Creating or Modifying an Extended-Range VLAN 10-9 Assigning Switch Ports to a VLAN 10-10 Mapping 802.1Q VLANs to ISL VLANs 10-11 ...
Software Guide
Page 17
... E R 78-15486-01 Configuring a Login Banner 27-4 Clearing the Login Banner 27-5 Enabling or Disabling the "Cisco Systems Console" Telnet Login Banner 27-5 Defining and Using Command Aliases 27-6 Defining and Using IP Aliases 27-7 Configuring Permanent and Static ARP Entries 27-8 Configuring Static Routes 27-9... 28-7 1+1 Redundancy Mode Limitations 28-7 Power Consumption for Modules 28-9 Migrating a Supervisor Engine II from a Catalyst 4006 Switch to a Catalyst 4500 Series Switch 28-10 Understanding How Inline Power Works 28-11 Inline Power Management Modes 28-12 Power Requirements 28-12 Phone...
... E R 78-15486-01 Configuring a Login Banner 27-4 Clearing the Login Banner 27-5 Enabling or Disabling the "Cisco Systems Console" Telnet Login Banner 27-5 Defining and Using Command Aliases 27-6 Defining and Using IP Aliases 27-7 Configuring Permanent and Static ARP Entries 27-8 Configuring Static Routes 27-9... 28-7 1+1 Redundancy Mode Limitations 28-7 Power Consumption for Modules 28-9 Migrating a Supervisor Engine II from a Catalyst 4006 Switch to a Catalyst 4500 Series Switch 28-10 Understanding How Inline Power Works 28-11 Inline Power Management Modes 28-12 Power Requirements 28-12 Phone...
Software Guide
Page 18
...Authentication Example 30-40 Understanding How Authorization Works 30-41 Authorization Events 30-41 TACACS+ Primary and Fallback Options 30-41 TACACS+ Command Authorization 30-42 RADIUS Authorization 30-42 Configuring Authorization 30-43 Authorization Default Configuration 30-43 TACACS+ Authorization Configuration Guidelines 30-43 ...Configuring TACACS+ Authorization 30-43 Authorization Example 30-46 Understanding How Accounting Works 30-47 Accounting Overview 30-48 xviii Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
...Authentication Example 30-40 Understanding How Authorization Works 30-41 Authorization Events 30-41 TACACS+ Primary and Fallback Options 30-41 TACACS+ Command Authorization 30-42 RADIUS Authorization 30-42 Configuring Authorization 30-43 Authorization Default Configuration 30-43 TACACS+ Authorization Configuration Guidelines 30-43 ...Configuring TACACS+ Authorization 30-43 Authorization Example 30-46 Understanding How Accounting Works 30-47 Accounting Overview 30-48 xviii Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
Software Guide
Page 20
...Trace Severity 31-15 Using the show Commands 31-16 Modifying the Switch Boot Configuration 32-1 Understanding How the Switch Boot Configuration Works 32-1 Understanding the Boot...CONFIG_FILE Environment Variable 32-3 Default Switch Boot Configuration 32-4 Setting the Configuration Register ...Setting CONFIG_FILE Recurrence 32-5 Setting the Switch to Ignore the NVRAM Configuration 32...Displaying the Switch Boot Configuration 32-8 Working with System ...Software Images to the Switch Using TFTP 33-1 ...Server 33-5 Downloading System Software Images to the Switch Using rcp 33-5 Understanding How rcp Software Image...
...Trace Severity 31-15 Using the show Commands 31-16 Modifying the Switch Boot Configuration 32-1 Understanding How the Switch Boot Configuration Works 32-1 Understanding the Boot...CONFIG_FILE Environment Variable 32-3 Default Switch Boot Configuration 32-4 Setting the Configuration Register ...Setting CONFIG_FILE Recurrence 32-5 Setting the Switch to Ignore the NVRAM Configuration 32...Displaying the Switch Boot Configuration 32-8 Working with System ...Software Images to the Switch Using TFTP 33-1 ...Server 33-5 Downloading System Software Images to the Switch Using rcp 33-5 Understanding How rcp Software Image...
Software Guide
Page 23
... who are responsible for configuring and maintaining Catalyst enterprise LAN switches. Configuring the Switch IP Address and Default Gateway Describes how to perform a baseline configuration of the Catalyst enterprise LAN switches. Configuring Spanning Tree Describes how to configure Ethernet and Fast Ethernet switching on the switch. Configuring Ethernet and Fast Ethernet Switching Describes how to configure the spanning...
... who are responsible for configuring and maintaining Catalyst enterprise LAN switches. Configuring the Switch IP Address and Default Gateway Describes how to perform a baseline configuration of the Catalyst enterprise LAN switches. Configuring Spanning Tree Describes how to configure Ethernet and Fast Ethernet switching on the switch. Configuring Ethernet and Fast Ethernet Switching Describes how to configure the spanning...
Software Guide
Page 25
... the Catalyst enterprise LAN switches: • Catalyst 4000 Series Switch Installation Guide • Catalyst 4500 Series Switch Installation Guide • Catalyst 4912G Installation Guide • Catalyst 2948G and 2980G Installation Guide • Catalyst 4000 Family, 2948G, and 2980G Switches Quick Software Configuration • Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference • System Message Guide-Catalyst 6500 Series, Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches...
... the Catalyst enterprise LAN switches: • Catalyst 4000 Series Switch Installation Guide • Catalyst 4500 Series Switch Installation Guide • Catalyst 4912G Installation Guide • Catalyst 2948G and 2980G Installation Guide • Catalyst 4000 Family, 2948G, and 2980G Switches Quick Software Configuration • Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference • System Message Guide-Catalyst 6500 Series, Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches...
Software Guide
Page 26
... to switch platforms: • Catalyst enterprise LAN switches-Refers to the Catalyst 4000 series and Catalyst 4500 series switches, Catalyst 2948G, and Catalyst 2980G switches. • Catalyst 4000 family switches-Refers to material not covered in boldface screen font. An exclamation point (!) or a pound sign (#) at the beginning of a line of characters. The Catalyst 4000 series includes the Catalyst 4003, Catalyst 4006, and Catalyst 4912G switches. Command...
... to switch platforms: • Catalyst enterprise LAN switches-Refers to the Catalyst 4000 series and Catalyst 4500 series switches, Catalyst 2948G, and Catalyst 2980G switches. • Catalyst 4000 family switches-Refers to material not covered in boldface screen font. An exclamation point (!) or a pound sign (#) at the beginning of a line of characters. The Catalyst 4000 series includes the Catalyst 4003, Catalyst 4006, and Catalyst 4912G switches. Command...
Software Guide
Page 33
... descriptions of the Catalyst 2980G switch hardware, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-3 The Catalyst enterprise LAN switches share a command-line interface (CLI) with which is factory installed on the switches. Table 1-3 Catalyst 2980G Switch Product Number WS-C2980G-A Chassis Description Catalyst 2980G • Fixed...
... descriptions of the Catalyst 2980G switch hardware, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-3 The Catalyst enterprise LAN switches share a command-line interface (CLI) with which is factory installed on the switches. Table 1-3 Catalyst 2980G Switch Product Number WS-C2980G-A Chassis Description Catalyst 2980G • Fixed...
Software Guide
Page 35
..., Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-1 For descriptions of a Catalyst 4003 Bootup Display, page 2-9 Switch CLI Overview The switch CLI is a basic command-line interpreter, similar to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. You can abbreviate commands and parameters as long as they contain enough letters to the Cisco IOS software command reference publications. However, switch commands are...
..., Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-1 For descriptions of a Catalyst 4003 Bootup Display, page 2-9 Switch CLI Overview The switch CLI is a basic command-line interpreter, similar to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. You can abbreviate commands and parameters as long as they contain enough letters to the Cisco IOS software command reference publications. However, switch commands are...
Software Guide
Page 36
... the screen (see the "Example of a Catalyst 4003 Bootup Display" section on , power up the switch. For more information, see this display: Cisco Systems, Inc. Make sure that the terminal is already booted, press Enter to change the configuration. Accessing the Switch CLI You can use set commands) to overwrite or erase configuration parameters. Use...
... the screen (see the "Example of a Catalyst 4003 Bootup Display" section on , power up the switch. For more information, see this display: Cisco Systems, Inc. Make sure that the terminal is already booted, press Enter to change the configuration. Accessing the Switch CLI You can use set commands) to overwrite or erase configuration parameters. Use...
Software Guide
Page 37
... name Catalyst_1. Cisco Systems Console Enter password: After you successfully connect to use DNS host names. Switch CLI Command Modes The switch CLI supports two modes of the switch. (You must first set the IP address (and in order to the switch using Telnet, ...properly on the switch and on DNS, see Chapter 3, "Configuring the Switch IP Address and Default Gateway." To access the switch CLI from a remote host using Telnet, see Chapter 30, "Configuring Switch Access Using AAA." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-...
... name Catalyst_1. Cisco Systems Console Enter password: After you successfully connect to use DNS host names. Switch CLI Command Modes The switch CLI supports two modes of the switch. (You must first set the IP address (and in order to the switch using Telnet, ...properly on the switch and on DNS, see Chapter 3, "Configuring the Switch IP Address and Default Gateway." To access the switch CLI from a remote host using Telnet, see Chapter 30, "Configuring Switch Access Using AAA." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-...
Software Guide
Page 38
... Set IP HTTP server information Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-4 78-15486-01 Enter Password: Console> To disconnect from the switch CLI, enter the exit command. To enter and exit privileged command mode, follow these steps: ...switch. in privileged mode. If you enter a command using Telnet (for example, commands that modify the configuration) can be used by the set mls command. Cisco Systems Console Fri Aug 27 1999, 16:14:41 Enter password: Many commands (for more information, see the commands...
... Set IP HTTP server information Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-4 78-15486-01 Enter Password: Console> To disconnect from the switch CLI, enter the exit command. To enter and exit privileged command mode, follow these steps: ...switch. in privileged mode. If you enter a command using Telnet (for example, commands that modify the configuration) can be used by the set mls command. Cisco Systems Console Fri Aug 27 1999, 16:14:41 Enter password: Many commands (for more information, see the commands...
Software Guide
Page 39
... entered without the question mark (?). Ctrl-C Escapes and terminates prompts and lengthy tasks. Ctrl-E Jumps to display a list of commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Ctrl-F or the Right Arrow key1 Moves the cursor forward one character. Enters next...
... entered without the question mark (?). Ctrl-C Escapes and terminates prompts and lengthy tasks. Ctrl-E Jumps to display a list of commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Ctrl-F or the Right Arrow key1 Moves the cursor forward one character. Enters next...
Software Guide
Page 40
...command or keyword on the command line. After entering the command at the bottom of the most recent command. !n Repeats command n. !aaa Repeats the command beginning with the string bbb in the most recent command. The More program is displayed at the system prompt, press Return to execute the command. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... Software Configuration Guide-Release 8.1 2-6 78-15486-01 To add a string to the end of a previous command and repeat it is ...
...command or keyword on the command line. After entering the command at the bottom of the most recent command. !n Repeats command n. !aaa Repeats the command beginning with the string bbb in the most recent command. The More program is displayed at the system prompt, press Return to execute the command. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... Software Configuration Guide-Release 8.1 2-6 78-15486-01 To add a string to the end of a previous command and repeat it is ...
Software Guide
Page 41
... not case sensitive; When you enter configuration commands on these switches are located on module 2. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most port is numbered 2/1 instead of ports. With many commands, you must refer to designate ports and ...on module 2. To specify a range of ports, use the module number. Table 2-3 Command Aliases That Cannot Be Abbreviated Alias ? The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two modules but only one screen To quit from the More program Keystrokes Press the...
... not case sensitive; When you enter configuration commands on these switches are located on module 2. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most port is numbered 2/1 instead of ports. With many commands, you must refer to designate ports and ...on module 2. To specify a range of ports, use the module number. Table 2-3 Command Aliases That Cannot Be Abbreviated Alias ? The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two modules but only one screen To quit from the More program Keystrokes Press the...
Software Guide
Page 42
... numbers separated by hyphens, as shown in the following example: 172.16.10.1 If DNS is associated with the VLAN. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-8 78-15486-01 The IP address format is 32 bits, written in dotted decimal format,... as shown in this example: 00-00-0c-24-d2-fe Specifying IP Addresses, Host Names, and IP Aliases Some commands require an...
... numbers separated by hyphens, as shown in the following example: 172.16.10.1 If DNS is associated with the VLAN. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-8 78-15486-01 The IP address format is 32 bits, written in dotted decimal format,... as shown in this example: 00-00-0c-24-d2-fe Specifying IP Addresses, Host Names, and IP Aliases Some commands require an...
Software Guide
Page 43
... system enters ROM monitor mode if the nonvolatile RAM (NVRAM) configuration is corrupted, if the switch does not find a valid system image, or if the configuration register is set to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. rommon 1 > The system will autoboot in TempFs Board type is WS-X4012 DiagBootMode value...
... system enters ROM monitor mode if the nonvolatile RAM (NVRAM) configuration is corrupted, if the switch does not find a valid system image, or if the configuration register is set to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. rommon 1 > The system will autoboot in TempFs Board type is WS-X4012 DiagBootMode value...
Software Guide
Page 44
Cisco Systems, Inc. Console Enter password: 1999 Aug 12 14:34:05 %SYS-5-MOD_OK:Module 1 is online 1999 Aug 12 14:34:08 %SYS-5-MOD_OK:Module 3 ... ... For more information, see the "Using DHCP or RARP to 0.0.0.0. Module 2 Passed Power-on page 3-9. 2-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Example of a Catalyst 4003 Bootup Display Chapter 2 Using the Command-Line Interface 41: . 42: . 43: . 44: . 45: . 46: . 47: . 48: . Module 3 Passed Exiting Off-line...
Cisco Systems, Inc. Console Enter password: 1999 Aug 12 14:34:05 %SYS-5-MOD_OK:Module 1 is online 1999 Aug 12 14:34:08 %SYS-5-MOD_OK:Module 3 ... ... For more information, see the "Using DHCP or RARP to 0.0.0.0. Module 2 Passed Power-on page 3-9. 2-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Example of a Catalyst 4003 Bootup Display Chapter 2 Using the Command-Line Interface 41: . 42: . 43: . 44: . 45: . 46: . 47: . 48: . Module 3 Passed Exiting Off-line...