Configuration Guide
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... View 2-14 Topology Display Options 2-14 Menus and Toolbar 2-15 Menu Bar 2-15 Toolbar 2-20 Front Panel View Popup Menus 2-21 Device Popup Menu 2-21 Port Popup Menu 2-21 Topology View Popup Menus 2-22 Link Popup Menu 2-22 Device Popup Menus 2-23 Interaction Modes 2-25 Guide Mode 2-25 Expert Mode 2-25... Verifying Your Changes 2-32 Change Notification 2-32 Error Checking 2-32 Saving Your Changes 2-32 Using Different Versions of CMS 2-33 Where to Go Next 2-33 Catalyst 2950 Desktop Switch Software Configuration Guide iv 78-11380-03
... View 2-14 Topology Display Options 2-14 Menus and Toolbar 2-15 Menu Bar 2-15 Toolbar 2-20 Front Panel View Popup Menus 2-21 Device Popup Menu 2-21 Port Popup Menu 2-21 Topology View Popup Menus 2-22 Link Popup Menu 2-22 Device Popup Menus 2-23 Interaction Modes 2-25 Guide Mode 2-25 Expert Mode 2-25... Verifying Your Changes 2-32 Change Notification 2-32 Error Checking 2-32 Saving Your Changes 2-32 Using Different Versions of CMS 2-33 Where to Go Next 2-33 Catalyst 2950 Desktop Switch Software Configuration Guide iv 78-11380-03
Configuration Guide
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... the Switch 4-1 Switch Software Releases 4-2 Console Port Access 4-2 Telnet Access to the CLI 4-2 HTTP Access to CMS 4-3 SNMP Network Management Platforms 4-4 SNMP Versions 4-4 Using FTP to Access the MIB Files 4-5 Using SNMP to Access MIB Variables 4-5 Default Settings 4-6 Clustering Switches 5-1 Understanding Switch Clusters 5-2 Command Switch Characteristics 5-2 Standby Command Switch Characteristics 5-3 Candidate and Member Switches Characteristics 5-3 Catalyst 2950 Desktop Switch Software...
... the Switch 4-1 Switch Software Releases 4-2 Console Port Access 4-2 Telnet Access to the CLI 4-2 HTTP Access to CMS 4-3 SNMP Network Management Platforms 4-4 SNMP Versions 4-4 Using FTP to Access the MIB Files 4-5 Using SNMP to Access MIB Variables 4-5 Default Settings 4-6 Clustering Switches 5-1 Understanding Switch Clusters 5-2 Command Switch Characteristics 5-2 Standby Command Switch Characteristics 5-3 Candidate and Member Switches Characteristics 5-3 Catalyst 2950 Desktop Switch Software...
Configuration Guide
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... 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-Client Mode 6-12 Configuring SNMP...Addresses 6-18 Adding and Removing Static Address Entries 6-18 Configuring Static Addresses for EtherChannel Port Groups 6-19 Configuring TACACS+ 6-20 Configuring the TACACS+ Server Host 6-20 Configuring... Access and Network Services 6-22 Starting TACACS+ Accounting 6-22 Configuring a Switch for Local AAA 6-23 Controlling Switch Access with RADIUS 6-24 Understanding RADIUS 6-24 RADIUS Operation 6-25 Configuring ...
... 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-Client Mode 6-12 Configuring SNMP...Addresses 6-18 Adding and Removing Static Address Entries 6-18 Configuring Static Addresses for EtherChannel Port Groups 6-19 Configuring TACACS+ 6-20 Configuring the TACACS+ Server Host 6-20 Configuring... Access and Network Services 6-22 Starting TACACS+ Accounting 6-22 Configuring a Switch for Local AAA 6-23 Controlling Switch Access with RADIUS 6-24 Understanding RADIUS 6-24 RADIUS Operation 6-25 Configuring ...
Configuration Guide
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... 7-10 Manually Re-Authenticating a Client Connected to a Port 7-11 Changing the Quiet Period 7-11 Changing the Switch-to-Client Retransmission Time 7-12 Setting the Switch-to-Client Frame-Retransmission Number 7-13 Enabling Multiple Hosts ...the Management VLAN for a New Switch 8-3 Changing the Management VLAN Through a Telnet Connection 8-4 Assigning VLAN Port Membership Modes 8-4 VLAN Membership Combinations 8-6 Assigning Static-Access Ports to a VLAN 8-7 Using VTP 8-7 The VTP Domain 8-7 VTP Modes and Mode Transitions 8-7 Catalyst 2950 Desktop Switch Software Configuration Guide viii 78-11380...
... 7-10 Manually Re-Authenticating a Client Connected to a Port 7-11 Changing the Quiet Period 7-11 Changing the Switch-to-Client Retransmission Time 7-12 Setting the Switch-to-Client Frame-Retransmission Number 7-13 Enabling Multiple Hosts ...the Management VLAN for a New Switch 8-3 Changing the Management VLAN Through a Telnet Connection 8-4 Assigning VLAN Port Membership Modes 8-4 VLAN Membership Combinations 8-6 Assigning Static-Access Ports to a VLAN 8-7 Using VTP 8-7 The VTP Domain 8-7 VTP Modes and Mode Transitions 8-7 Catalyst 2950 Desktop Switch Software Configuration Guide viii 78-11380...
Configuration Guide
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...8-19 How VLAN Trunks Work 8-20 IEEE 802.1Q Configuration Considerations 8-21 Trunks Interacting with Other Features 8-21 Configuring a Trunk Port 8-22 CLI: Disabling a Trunk Port 8-22 CLI: Defining the Allowed VLANs on a Trunk 8-23 Changing the Pruning-Eligible 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
...8-19 How VLAN Trunks Work 8-20 IEEE 802.1Q Configuration Considerations 8-21 Trunks Interacting with Other Features 8-21 Configuring a Trunk Port 8-22 CLI: Disabling a Trunk Port 8-22 CLI: Defining the Allowed VLANs on a Trunk 8-23 Changing the Pruning-Eligible 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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... IEEE 802.1Q Trunks 9-8 STP and Redundant Connectivity 9-8 Accelerated Aging to Retain Connectivity 9-9 Understanding Advanced STP Features 9-9 Understanding Port Fast 9-10 Understanding BPDU Guard 9-10 Understanding UplinkFast 9-11 Understanding Cross-Stack UplinkFast 9-12 How CSUF Works 9-13 Events that Cause Fast Convergence 9-14 Catalyst 2950 Desktop Switch Software Configuration Guide x 78-11380-03
... IEEE 802.1Q Trunks 9-8 STP and Redundant Connectivity 9-8 Accelerated Aging to Retain Connectivity 9-9 Understanding Advanced STP Features 9-9 Understanding Port Fast 9-10 Understanding BPDU Guard 9-10 Understanding UplinkFast 9-11 Understanding Cross-Stack UplinkFast 9-12 How CSUF Works 9-13 Events that Cause Fast Convergence 9-14 Catalyst 2950 Desktop Switch Software Configuration Guide x 78-11380-03
Configuration Guide
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... Redundant Links 9-32 Configuring Cross-Stack UplinkFast 9-33 Configuring BackboneFast 9-34 Configuring Root Guard 9-34 Configuring the Switch Ports 10-1 Changing the Port Speed and Duplex Mode 10-1 Connecting to Devices That Do Not Autonegotiate 10-2 Setting Speed and Duplex Parameters... Controls 10-4 Enabling Storm Control 10-4 Disabling Storm Control 10-5 Configuring Protected Ports 10-5 Enabling Port Security 10-6 Defining the Maximum Secure Address Count 10-7 Enabling Port Security 10-7 Disabling Port Security 10-8 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide xi
... Redundant Links 9-32 Configuring Cross-Stack UplinkFast 9-33 Configuring BackboneFast 9-34 Configuring Root Guard 9-34 Configuring the Switch Ports 10-1 Changing the Port Speed and Duplex Mode 10-1 Connecting to Devices That Do Not Autonegotiate 10-2 Setting Speed and Duplex Parameters... Controls 10-4 Enabling Storm Control 10-4 Disabling Storm Control 10-5 Configuring Protected Ports 10-5 Enabling Port Security 10-6 Defining the Maximum Secure Address Count 10-7 Enabling Port Security 10-7 Disabling Port Security 10-8 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide xi
Configuration Guide
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... UniDirectional Link Detection 10-18 Understanding SPAN 10-18 SPAN Concepts and Terminology 10-19 SPAN Session 10-19 Traffic Types 10-19 Source Port 10-20 Destination Port 10-20 SPAN Traffic 10-21 SPAN Interaction with Other Features 10-21 Configuring SPAN 10-22 SPAN Configuration Guidelines 10-22 Creating... 11-3 Setting the Snooping Method 11-4 Joining a Multicast Group 11-4 Statically Configuring a Host to Join a Group 11-5 CLI: Statically Configuring a Interface to Join a Group 11-6 Catalyst 2950 Desktop Switch Software Configuration Guide xii 78-11380-03
... UniDirectional Link Detection 10-18 Understanding SPAN 10-18 SPAN Concepts and Terminology 10-19 SPAN Session 10-19 Traffic Types 10-19 Source Port 10-20 Destination Port 10-20 SPAN Traffic 10-21 SPAN Interaction with Other Features 10-21 Configuring SPAN 10-22 SPAN Configuration Guidelines 10-22 Creating... 11-3 Setting the Snooping Method 11-4 Joining a Multicast Group 11-4 Statically Configuring a Host to Join a Group 11-5 CLI: Statically Configuring a Interface to Join a Group 11-6 Catalyst 2950 Desktop Switch Software Configuration Guide xii 78-11380-03
Configuration Guide
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...E R 13 C H A P T E R 78-11380-03 Leaving a Multicast Group 11-6 CLI: Configuring a Multicast Router Port 11-7 Understanding Multicast VLAN Registration 11-7 Using MVR in a Multicast Television Application 11-8 Configuration Guidelines and Limitations 11-10 Default MVR ...ACLs 12-1 ACLs 12-2 Handling Fragmented and Unfragmented Traffic 12-3 Understanding Access Control Parameters 12-4 Guidelines for Configuring ACLs on the Catalyst 2950 Switches 12-5 Configuring ACLs 12-6 Unsupported Features 12-6 Creating Standard and Extended IP ACLs 12-7 ACL Numbers 12-7 Creating a Numbered Standard...
...E R 13 C H A P T E R 78-11380-03 Leaving a Multicast Group 11-6 CLI: Configuring a Multicast Router Port 11-7 Understanding Multicast VLAN Registration 11-7 Using MVR in a Multicast Television Application 11-8 Configuration Guidelines and Limitations 11-10 Default MVR ...ACLs 12-1 ACLs 12-2 Handling Fragmented and Unfragmented Traffic 12-3 Understanding Access Control Parameters 12-4 Guidelines for Configuring ACLs on the Catalyst 2950 Switches 12-5 Configuring ACLs 12-6 Unsupported Features 12-6 Creating Standard and Extended IP ACLs 12-7 ACL Numbers 12-7 Creating a Numbered Standard...
Configuration Guide
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... Configuring QoS 13-9 Default QoS Configuration 13-9 Configuration Guidelines 13-10 Configuring Classification Using Port Trust States 13-10 Configuring the Trust State on Ports within the QoS Domain 13-11 Configuring the CoS Value for an Interface 13-13 ... 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 ...
... Configuring QoS 13-9 Default QoS Configuration 13-9 Configuration Guidelines 13-10 Configuring Classification Using Port Trust States 13-10 Configuring the Trust State on Ports within the QoS Domain 13-11 Configuring the CoS Value for an Interface 13-13 ... 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 ...
Configuration Guide
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...and CLI procedures provided in configuration and accessing CMS, refer to the Catalyst 2950 Desktop Switch Command Reference. • CLI command information-This guide provides an overview for configuring 802.1X port-based authentication. Chapter 2, "Getting Started with CMS," describes the ...plug-in the standard Cisco IOS Release 12.1 documentation. The online help . The online help provides the CMS procedures. Configuring switch clusters is most easily performed through CMS, this release and provides examples of the CMS web-based, switch management interface. The ...
...and CLI procedures provided in configuration and accessing CMS, refer to the Catalyst 2950 Desktop Switch Command Reference. • CLI command information-This guide provides an overview for configuring 802.1X port-based authentication. Chapter 2, "Getting Started with CMS," describes the ...plug-in the standard Cisco IOS Release 12.1 documentation. The online help . The online help provides the CMS procedures. Configuring switch clusters is most easily performed through CMS, this release and provides examples of the CMS web-based, switch management interface. The ...
Configuration Guide
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...; Information you can provide preferential treatment to certain types of service (QoS). With this manual. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide xix The online help provides the CMS procedures. It describes how to apply ACLs to the IOS...in angle brackets (< >). The online help provides the CMS procedures for configuring quality of traffic. Chapter 10, "Configuring the Switch Ports," provides the considerations and CLI procedures for configuring basic and advanced spanning-tree features. The online help provides the CMS procedures. ...
...; Information you can provide preferential treatment to certain types of service (QoS). With this manual. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide xix The online help provides the CMS procedures. It describes how to apply ACLs to the IOS...in angle brackets (< >). The online help provides the CMS procedures for configuring quality of traffic. Chapter 10, "Configuring the Switch Ports," provides the considerations and CLI procedures for configuring basic and advanced spanning-tree features. The online help provides the CMS procedures. ...
Configuration Guide
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...; Autosensing of speed on the 10/100 ports and autonegotiation of duplex mode on all switch ports for optimizing bandwidth • IEEE 802.3x flow control on Gigabit ports operating in your intranet • Switch clustering technology used for HSRP must have compatible software releases. The Catalyst 2950 switches running Cisco IOS Release12.1(6)EA2 or later support frame...
...; Autosensing of speed on the 10/100 ports and autonegotiation of duplex mode on all switch ports for optimizing bandwidth • IEEE 802.3x flow control on Gigabit ports operating in your intranet • Switch clustering technology used for HSRP must have compatible software releases. The Catalyst 2950 switches running Cisco IOS Release12.1(6)EA2 or later support frame...
Configuration Guide
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...-of-band management access through the switch console port to a directly-attached terminal or to ensure retrieval of the management interfaces, see the "Management Options" section on page 1-6. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 1-3 BOOTP is... available in earlier software releases for this switch. • Address Resolution Protocol (ARP) for identifying a switch through its IP address and its corresponding MAC address • Cisco Discovery Protocol (CDP) ...
...-of-band management access through the switch console port to a directly-attached terminal or to ensure retrieval of the management interfaces, see the "Management Options" section on page 1-6. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 1-3 BOOTP is... available in earlier software releases for this switch. • Address Resolution Protocol (ARP) for identifying a switch through its IP address and its corresponding MAC address • Cisco Discovery Protocol (CDP) ...
Configuration Guide
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... a spanning-tree topology change from becoming the STP root Note A Catalyst 2950 switch can support up to 64 spanning-tree instances (see Table 8-1 on page 8-2). VLAN Support • Catalyst 2950 switches support 250 port-based VLANs for achieving load balancing between two devices and for eliminating ...Tree (PVST) for network moves, adds, and changes; Note The Catalyst 2950-12 and Catalyst 2950-24 switches support only 64 port-based VLANs. • IEEE 802.1Q trunking protocol on all Ethernet ports for detecting and disabling unidirectional links on fiber-optic interfaces caused by ...
... a spanning-tree topology change from becoming the STP root Note A Catalyst 2950 switch can support up to 64 spanning-tree instances (see Table 8-1 on page 8-2). VLAN Support • Catalyst 2950 switches support 250 port-based VLANs for achieving load balancing between two devices and for eliminating ...Tree (PVST) for network moves, adds, and changes; Note The Catalyst 2950-12 and Catalyst 2950-24 switches support only 64 port-based VLANs. • IEEE 802.1Q trunking protocol on all Ethernet ports for detecting and disabling unidirectional links on fiber-optic interfaces caused by ...
Configuration Guide
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... classification and preferential treatment of high-priority voice traffic Policing • Traffic-policing policies on the switch port for allocating the amount of the port bandwidth to a specific traffic flow1 • Policing traffic flows to restrict specific applications or traffic flows... • Four egress queues on all switch ports. Support for packets that exceed bandwidth utilization limits1 Egress Policing and Scheduling 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
... classification and preferential treatment of high-priority voice traffic Policing • Traffic-policing policies on the switch port for allocating the amount of the port bandwidth to a specific traffic flow1 • Policing traffic flows to restrict specific applications or traffic flows... • Four egress queues on all switch ports. Support for packets that exceed bandwidth utilization limits1 Egress Policing and Scheduling 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
Configuration Guide
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... network topologies to gather link information and to display switch images to monitor and control the switch and switch cluster members. Catalyst 2950 Desktop Switch Software Configuration Guide 1-6 78-11380-03 Management Options Chapter 1 Overview Table 1-1 Features (continued) Monitoring • Switch LEDs that provide visual port and switch status • Switch Port Analyzer (SPAN) for complete traffic monitoring on any...
... network topologies to gather link information and to display switch images to monitor and control the switch and switch cluster members. Catalyst 2950 Desktop Switch Software Configuration Guide 1-6 78-11380-03 Management Options Chapter 1 Overview Table 1-1 Features (continued) Monitoring • Switch LEDs that provide visual port and switch status • Switch Port Analyzer (SPAN) for complete traffic monitoring on any...
Configuration Guide
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... RMON groups. You can also use the topology to avoid re-entering the same commands for each individual port or switch. For more information about using switch clusters and CMS, you to provide only minimal required information to configure complex features such as HP OpenView or... interconnected and supported Catalyst switches through configuring complex features such as VLANs, ACLs, and QoS • Use a wizard that prompts you can conserve IP addresses if you step-by-step through one IP address as speed and duplex settings - You can use Cisco switch clustering technology to...
... RMON groups. You can also use the topology to avoid re-entering the same commands for each individual port or switch. For more information about using switch clusters and CMS, you to provide only minimal required information to configure complex features such as HP OpenView or... interconnected and supported Catalyst switches through configuring complex features such as VLANs, ACLs, and QoS • Use a wizard that prompts you can conserve IP addresses if you step-by-step through one IP address as speed and duplex settings - You can use Cisco switch clustering technology to...
Configuration Guide
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... and use VLANs and IP subnets to the Fast Ethernet or Gigabit Ethernet switch ports so that they use. When you can support applications such as e-mail with a lower relative port cost is not the only consideration when designing your network users and the ... ports so that the uplink port with large attached files) and from networked applications (such as voice and data integration and security. Bandwidth alone is selected to create dedicated network segments and interconnecting the segments through Fast Ethernet and Gigabit Ethernet connections. Catalyst 2950 Desktop Switch ...
... and use VLANs and IP subnets to the Fast Ethernet or Gigabit Ethernet switch ports so that they use. When you can support applications such as e-mail with a lower relative port cost is not the only consideration when designing your network users and the ... ports so that the uplink port with large attached files) and from networked applications (such as voice and data integration and security. Bandwidth alone is selected to create dedicated network segments and interconnecting the segments through Fast Ethernet and Gigabit Ethernet connections. Catalyst 2950 Desktop Switch ...
Configuration Guide
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... of up to 32,808 ft (10 km) - 1000BASE-ZX GBIC: fiber connections of Catalyst 2950-48 switches, you use Gigabit modules to connect the switches directly to nine supported switches. Using the following Gigabit modules also provides flexibility in this with a dedicated 1-Gbps connection to...intranet at least two queues per port to prioritize voice and data traffic as either high- Using Gigabit modules on 802.1P/Q. To preserve switch connectivity if one full-duplex link (in a star configuration. You can connect the Catalyst 2950 switches, again in a GigaStack configuration,...
... of up to 32,808 ft (10 km) - 1000BASE-ZX GBIC: fiber connections of Catalyst 2950-48 switches, you use Gigabit modules to connect the switches directly to nine supported switches. Using the following Gigabit modules also provides flexibility in this with a dedicated 1-Gbps connection to...intranet at least two queues per port to prioritize voice and data traffic as either high- Using Gigabit modules on 802.1P/Q. To preserve switch connectivity if one full-duplex link (in a star configuration. You can connect the Catalyst 2950 switches, again in a GigaStack configuration,...