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... day, 365 days a year. Accessing all customers, partners, resellers, and distributors who hold valid Cisco service contracts, the Cisco Technical Assistance Center (TAC) provides 24-hour, award-winning technical support services, online and over the phone. If your issue is not resolved... ID or password, register at the top of the page. After you describe your comments. Cisco TAC Website The Cisco TAC website (http://www.cisco.com/tac) provides online documents and tools for technical assistance. xviii Catalyst 2950 Switch Hardware Installation Guide OL-6156-01 Cisco TAC engineers ...
... day, 365 days a year. Accessing all customers, partners, resellers, and distributors who hold valid Cisco service contracts, the Cisco Technical Assistance Center (TAC) provides 24-hour, award-winning technical support services, online and over the phone. If your issue is not resolved... ID or password, register at the top of the page. After you describe your comments. Cisco TAC Website The Cisco TAC website (http://www.cisco.com/tac) provides online documents and tools for technical assistance. xviii Catalyst 2950 Switch Hardware Installation Guide OL-6156-01 Cisco TAC engineers ...
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...one end of action. For a switch other than a Catalyst 2950G-24-EI-DC or a Catalyst 2950ST-24 LRE 997 switch, follow these steps to connect to AC power. For instructions about connecting the Catalyst 2950G-24-EI-DC or Catalyst 2950ST-24 LRE 997 switch to DC power, see Chapter 3, ...configure and manage the switch. Note If you complete the setup program: • Switch IP address • Subnet mask (IP netmask) • Default gateway (router) • Enable secret password • Enable password • Telnet password OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide D-5...
...one end of action. For a switch other than a Catalyst 2950G-24-EI-DC or a Catalyst 2950ST-24 LRE 997 switch, follow these steps to connect to AC power. For instructions about connecting the Catalyst 2950G-24-EI-DC or Catalyst 2950ST-24 LRE 997 switch to DC power, see Chapter 3, ...configure and manage the switch. Note If you complete the setup program: • Switch IP address • Subnet mask (IP netmask) • Default gateway (router) • Enable secret password • Enable password • Telnet password OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide D-5...
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... interface (CLI), the device manager, or the Network Assistant application. Enter enable password: enable_password Step 5 Enter a virtual terminal (Telnet) password, and press Return. You can be from the above interface summary: vlan1 Catalyst 2950 Switch Hardware Installation Guide D-6 OL-6156-01 On a command switch, the host name is in plain text. Use ctrl-c to create an...
... interface (CLI), the device manager, or the Network Assistant application. Enter enable password: enable_password Step 5 Enter a virtual terminal (Telnet) password, and press Return. You can be from the above interface summary: vlan1 Catalyst 2950 Switch Hardware Installation Guide D-6 OL-6156-01 On a command switch, the host name is in plain text. Use ctrl-c to create an...
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This is an example of the switch, and the switch displays that appears: The following configuration command script was created: hostname host_name enable secret 5 $1$Max7$Qgr9eXBhtcBJw3KK7bc850 enable password my line vty 0 15 password my_password snmp-server community public ! interface ...configure it later, enter no ip routing ! Would you enter N, the switch appears as a standalone switch. OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide D-7 Appendix D Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information Step 8 ...
This is an example of the switch, and the switch displays that appears: The following configuration command script was created: hostname host_name enable secret 5 $1$Max7$Qgr9eXBhtcBJw3KK7bc850 enable password my line vty 0 15 password my_password snmp-server community public ! interface ...configure it later, enter no ip routing ! Would you enter N, the switch appears as a standalone switch. OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide D-7 Appendix D Configuring the Switch with the CLI-Based Setup Program Entering the Initial Configuration Information Step 8 ...
Configuration Guide
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... SNMP to Manage Switch Clusters 5-24 Configuring the System 6-1 Changing IP Information 6-1 Manually Assigning and Removing Switch IP Information 6-2 Using DHCP-Based Autoconfiguration 6-2 Understanding DHCP-Based Autoconfiguration 6-3 DHCP Client Request Process 6-3 Configuring the DHCP Server 6-4 Configuring the TFTP Server 6-5 Configuring the Domain Name and the DNS 6-5 Configuring the Relay Device 6-6 Catalyst 2950 Desktop Switch Software Configuration...
... SNMP to Manage Switch Clusters 5-24 Configuring the System 6-1 Changing IP Information 6-1 Manually Assigning and Removing Switch IP Information 6-2 Using DHCP-Based Autoconfiguration 6-2 Understanding DHCP-Based Autoconfiguration 6-3 DHCP Client Request Process 6-3 Configuring the DHCP Server 6-4 Configuring the TFTP Server 6-5 Configuring the Domain Name and the DNS 6-5 Configuring the Relay Device 6-6 Catalyst 2950 Desktop Switch Software Configuration...
Configuration Guide
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... Changing the Password 6-10 Setting the System Date and Time 6-11 Configuring Daylight Saving Time 6-11 Configuring the Network Time Protocol 6-11 Configuring the Switch as an NTP Client 6-11 Enabling NTP Authentication 6-11 Configuring the Switch for NTP Broadcast...22 Configuring a Switch for Local AAA 6-23 Controlling Switch Access with RADIUS 6-24 Understanding RADIUS 6-24 RADIUS Operation 6-25 Configuring RADIUS 6-26 Default RADIUS Configuration 6-26 Identifying the RADIUS Server Host 6-27 Configuring RADIUS Login Authentication 6-29 Catalyst 2950 Desktop Switch Software Configuration Guide...
... Changing the Password 6-10 Setting the System Date and Time 6-11 Configuring Daylight Saving Time 6-11 Configuring the Network Time Protocol 6-11 Configuring the Switch as an NTP Client 6-11 Enabling NTP Authentication 6-11 Configuring the Switch for NTP Broadcast...22 Configuring a Switch for Local AAA 6-23 Controlling Switch Access with RADIUS 6-24 Understanding RADIUS 6-24 RADIUS Operation 6-25 Configuring RADIUS 6-26 Default RADIUS Configuration 6-26 Identifying the RADIUS Server Host 6-27 Configuring RADIUS Login Authentication 6-29 Catalyst 2950 Desktop Switch Software Configuration Guide...
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78-11380-03 Contents VTP Advertisements 8-8 VTP Version 2 8-9 VTP Pruning 8-9 VTP Configuration Guidelines 8-10 Domain Names 8-10 Passwords 8-10 Upgrading from Previous Software Releases 8-11 VTP Version 8-11 Default VTP Configuration 8-11 Configuring VTP 8-12 Configuring VTP Server ... List 8-23 Configuring the Native VLAN for Untagged Traffic 8-24 Load Sharing Using STP 8-24 Load Sharing Using STP Port Priorities 8-25 Configuring STP Port Priorities and Load Sharing 8-25 Load Sharing Using STP Path Cost 8-27 How the VMPS Works 8-28 Catalyst 2950 Desktop Switch Software Configuration Guide ix
78-11380-03 Contents VTP Advertisements 8-8 VTP Version 2 8-9 VTP Pruning 8-9 VTP Configuration Guidelines 8-10 Domain Names 8-10 Passwords 8-10 Upgrading from Previous Software Releases 8-11 VTP Version 8-11 Default VTP Configuration 8-11 Configuring VTP 8-12 Configuring VTP Server ... List 8-23 Configuring the Native VLAN for Untagged Traffic 8-24 Load Sharing Using STP 8-24 Load Sharing Using STP Port Priorities 8-25 Configuring STP Port Priorities and Load Sharing 8-25 Load Sharing Using STP Path Cost 8-27 How the VMPS Works 8-28 Catalyst 2950 Desktop Switch Software Configuration Guide ix
Configuration Guide
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...DSCP-to-CoS Map 13-22 Configuring CoS and WRR 13-23 CLI: Configuring CoS Priority Queues 13-24 Configuring WRR 13-24 Displaying QoS Information 13-25 QoS Configuration Examples 13-25 QoS Configuration for the Common Wiring Closet 13-...Connectivity 14-5 Recovering from a Command Switch Failure 14-5 Replacing a Failed Command Switch with a Cluster Member 14-6 Replacing a Failed Command Switch with Another Switch 14-7 Recovering from a Failed Command Switch Without HSRP 14-8 Recovering from a Lost or Forgotten Password 14-9 Catalyst 2950 Desktop Switch Software Configuration Guide xiv 78-11380-03
...DSCP-to-CoS Map 13-22 Configuring CoS and WRR 13-23 CLI: Configuring CoS Priority Queues 13-24 Configuring WRR 13-24 Displaying QoS Information 13-25 QoS Configuration Examples 13-25 QoS Configuration for the Common Wiring Closet 13-...Connectivity 14-5 Recovering from a Command Switch Failure 14-5 Replacing a Failed Command Switch with a Cluster Member 14-6 Replacing a Failed Command Switch with Another Switch 14-7 Recovering from a Failed Command Switch Without HSRP 14-8 Recovering from a Lost or Forgotten Password 14-9 Catalyst 2950 Desktop Switch Software Configuration Guide xiv 78-11380-03
Configuration Guide
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...you should be familiar with other documents for configuring the Catalyst 2950 switches, hereafter referred to as the switches. Purpose This guide provides information about these switches: • Catalyst 2950-12 • Catalyst 2950-24 Use this guide, you have met the hardware and software...have assigned switch IP information and passwords by using this guide with the concepts and terminology of Ethernet and local area networking. The Catalyst 2950 switch is for the network manager responsible for information about configuring and troubleshooting a switch or switch clusters....
...you should be familiar with other documents for configuring the Catalyst 2950 switches, hereafter referred to as the switches. Purpose This guide provides information about these switches: • Catalyst 2950-12 • Catalyst 2950-24 Use this guide, you have met the hardware and software...have assigned switch IP information and passwords by using this guide with the concepts and terminology of Ethernet and local area networking. The Catalyst 2950 switch is for the network manager responsible for information about configuring and troubleshooting a switch or switch clusters....
Configuration Guide
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... for configuring security using access control lists (ACLs). The online help provides the CMS procedures. With this manual. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide xix Notes, cautions, and tips use these conventions and symbols: Note Means reader take note. Chapter 14, "... and system displays are in screen font. • Information you enter is in boldface screen font. • Nonprinting characters, such as passwords or tabs, are in this feature, you supply values are in angle brackets (< >). Chapter 11, "Configuring IGMP Snooping and MVR," ...
... for configuring security using access control lists (ACLs). The online help provides the CMS procedures. With this manual. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide xix Notes, cautions, and tips use these conventions and symbols: Note Means reader take note. Chapter 14, "... and system displays are in screen font. • Information you enter is in boldface screen font. • Nonprinting characters, such as passwords or tabs, are in this feature, you supply values are in angle brackets (< >). Chapter 11, "Configuring IGMP Snooping and MVR," ...
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...valid service contract but most business operations continue. • Priority level 2 (P2)-Your production network is based on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. No workaround is available. • Priority level 1 (P1)-Your production network is degraded. The site provides around-... issues yourself, saving both cost and time. Two types of service contracts, when applicable. No workaround is available to register: http://www.cisco.com/register/ xxii Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03
...valid service contract but most business operations continue. • Priority level 2 (P2)-Your production network is based on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. No workaround is available. • Priority level 1 (P1)-Your production network is degraded. The site provides around-... issues yourself, saving both cost and time. Two types of service contracts, when applicable. No workaround is available to register: http://www.cisco.com/register/ xxii Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03
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...100/1000 ports1 • Out-of-profile markdown for strict priority and weighted round-robin (WRR) CoS policies 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 1-5 Chapter 1 Overview Features Table 1-1 Features (continued) Security • Bridge Protocol Data Unit (BPDU) Guard...an invalid configuration occurs • Protected port option for restricting the forwarding of traffic to designated ports on the same switch • Password-protected access (read-only and read-write access) to management interfaces (CMS and CLI) for protection against unauthorized ...
...100/1000 ports1 • Out-of-profile markdown for strict priority and weighted round-robin (WRR) CoS policies 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 1-5 Chapter 1 Overview Features Table 1-1 Features (continued) Security • Bridge Protocol Data Unit (BPDU) Guard...an invalid configuration occurs • Protected port option for restricting the forwarding of traffic to designated ports on the same switch • Password-protected access (read-only and read-write access) to management interfaces (CMS and CLI) for protection against unauthorized ...
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... from a cached copy of the Cisco Systems Access page. To prevent unauthorized access to CMS and the CLI, exit your browser to enter the HTTP port if the switch is the privilege level. If you configure a local username and password, make sure you have followed the... You can display the Front Panel and Topology views. 2-30 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 When prompted for assigning IP addresses and passwords to redisplay these steps: Step 1 Step 2 Step 3 Enter the switch IP address and your privilege level in CMS" section on page...
... from a cached copy of the Cisco Systems Access page. To prevent unauthorized access to CMS and the CLI, exit your browser to enter the HTTP port if the switch is the privilege level. If you configure a local username and password, make sure you have followed the... You can display the Front Panel and Topology views. 2-30 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 When prompted for assigning IP addresses and passwords to redisplay these steps: Step 1 Step 2 Step 3 Enter the switch IP address and your privilege level in CMS" section on page...
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...about privilege levels, see the "Changing the Password" section on CMS: - Catalyst 3550 member switches running earlier software releases and if you have privilege-level 15, you do have privilege-level 15. Catalyst 1900 and Catalyst 2820 - Chapter 2 Getting Started with CMS...access to CMS. If you do not need to these member switches, some configuration windows for those switches display incomplete information: - Catalyst 2950 member switches running Cisco IOS Release 12.0(5)WC2 or earlier - Catalyst 2900 XL switches with read-only access to CMS. Any options in the CMS...
...about privilege levels, see the "Changing the Password" section on CMS: - Catalyst 3550 member switches running earlier software releases and if you have privilege-level 15, you do have privilege-level 15. Catalyst 1900 and Catalyst 2820 - Chapter 2 Getting Started with CMS...access to CMS. If you do not need to these member switches, some configuration windows for those switches display incomplete information: - Catalyst 2950 member switches running Cisco IOS Release 12.0(5)WC2 or earlier - Catalyst 2900 XL switches with read-only access to CMS. Any options in the CMS...
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To access the various configuration modes, you must enter a password to enter privileged EXEC mode. The examples in the table use to configure your switches. The commands available to you depend on the switch, you must start a session on which clear counters or ... the CLI, page 3-9 IOS Command Modes The Cisco IOS user interface is divided into many different modes. Normally, you begin in . Using the configuration modes (global, interface, and line), you can use the host name switch. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 3-1 CH A P T E...
To access the various configuration modes, you must enter a password to enter privileged EXEC mode. The examples in the table use to configure your switches. The commands available to you depend on the switch, you must start a session on which clear counters or ... the CLI, page 3-9 IOS Command Modes The Cisco IOS user interface is divided into many different modes. Normally, you begin in . Using the configuration modes (global, interface, and line), you can use the host name switch. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 3-1 CH A P T E...
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... end. To exit to global configuration mode, enter exit. To exit to global configuration mode, enter exit. Catalyst 2950 Desktop Switch Software Configuration Guide 3-2 78-11380-03 Use this mode to configure VLAN-specific parameters. Use a password to protect access to this mode to configure parameters that you have entered. Use this mode. While...
... end. To exit to global configuration mode, enter exit. To exit to global configuration mode, enter exit. Catalyst 2950 Desktop Switch Software Configuration Guide 3-2 78-11380-03 Use this mode to configure VLAN-specific parameters. Use a password to protect access to this mode to configure parameters that you have entered. Use this mode. While...
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... 16 simultaneous Telnet sessions. To access the CLI from a remote management station. Accessing the CLI from the Cisco Systems Access page. The switch supports up modem. HTML access to the command line interface from a Browser This procedure assumes you have met...or dial-up to a command switch and cluster members are described in the release notes. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 3-9 Establish a connection with the Telnet client, and the switch must have assigned IP information and a Telnet password to start a Telnet session....
... 16 simultaneous Telnet sessions. To access the CLI from a remote management station. Accessing the CLI from the Cisco Systems Access page. The switch supports up modem. HTML access to the command line interface from a Browser This procedure assumes you have met...or dial-up to a command switch and cluster members are described in the release notes. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 3-9 Establish a connection with the Telnet client, and the switch must have assigned IP information and a Telnet password to start a Telnet session....
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...Release 12.1 commands, refer to Flash memory, they occur. On the Cisco Product Documentation home page, select Release 12.1 from the Cisco IOS Software drop-down list. 3-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 When you periodically save your changes to...command in your browser to Go Next The rest of the switch commands. Saving Configuration Changes The show command always displays the running configuration. A password is described and CLI procedures are lost when the switch restarts. Saving Configuration Changes Chapter 3 Using the Command-Line...
...Release 12.1 commands, refer to Flash memory, they occur. On the Cisco Product Documentation home page, select Release 12.1 from the Cisco IOS Software drop-down list. 3-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 When you periodically save your changes to...command in your browser to Go Next The rest of the switch commands. Saving Configuration Changes The show command always displays the running configuration. A password is described and CLI procedures are lost when the switch restarts. Saving Configuration Changes Chapter 3 Using the Command-Line...
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For information about switch software upgrades. The switch also requires a secret password. CH A P T E R 4 General Switch Administration This chapter provides these switch administration topics: • Basic IP connectivity to the switch • Switch software releases • Console port access • Hypertext Transfer Protocol (HTTP) ... to the release notes. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 4-1 You need this information. On the Cisco Product Documentation home page, select Release 12.1 from the Cisco.com home page at Service and Support >...
For information about switch software upgrades. The switch also requires a secret password. CH A P T E R 4 General Switch Administration This chapter provides these switch administration topics: • Basic IP connectivity to the switch • Switch software releases • Console port access • Hypertext Transfer Protocol (HTTP) ... to the release notes. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 4-1 You need this information. On the Cisco Product Documentation home page, select Release 12.1 from the Cisco.com home page at Service and Support >...
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...on page 2-32. Make sure that you save any changes that you make to the switch console port settings to the switch hardware installation guide. Catalyst 2950 Desktop Switch Software Configuration Guide 4-2 78-11380-03 Cisco also supplies a TFTP server that you can do this information: • Compatibility requirements... terminal or PC. Telnet Access to the CLI This procedure assumes that the switch is regularly updated with new features and bug fixes, and you have assigned IP information and a Telnet password to None. • Stop bits default is 1. • Parity settings ...
...on page 2-32. Make sure that you save any changes that you make to the switch console port settings to the switch hardware installation guide. Catalyst 2950 Desktop Switch Software Configuration Guide 4-2 78-11380-03 Cisco also supplies a TFTP server that you can do this information: • Compatibility requirements... terminal or PC. Telnet Access to the CLI This procedure assumes that the switch is regularly updated with new features and bug fixes, and you have assigned IP information and a Telnet password to None. • Stop bits default is 1. • Parity settings ...