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... of service (QoS) features, the Secure Shell Protocol, extended-range VLANs, and Remote Switch Port Analyzer (RSPAN). The non-LRE switch is supported by the switch software. Use this release. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide xxv The EI provides a richer set of features, including access control lists (ACLs), enhanced quality of...
... of service (QoS) features, the Secure Shell Protocol, extended-range VLANs, and Remote Switch Port Analyzer (RSPAN). The non-LRE switch is supported by the switch software. Use this release. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide xxv The EI provides a richer set of features, including access control lists (ACLs), enhanced quality of...
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Table 1-1 Switches Supported Switch Catalyst 2950-12 Software Image SI1 Catalyst 2950-24 SI Catalyst 2950C-24 EI2 Catalyst 2950G-12-EI EI Catalyst 2950G-24-EI EI Catalyst 2950G-24-EI-DC EI Catalyst 2950G-48-EI EI Catalyst 2950SX-24 SI Catalyst 2950T-24 EI Catalyst 2950ST-24-LRE YJ3 Catalyst 2950ST-8-LRE YJ 1. use the YJ release for non-LRE switches only; SI = standard software image 2. Overview CH A P T E R 1 This chapter provides these topics about the Catalyst 2950 switch software: • Features, page 1-1 • Management...
Table 1-1 Switches Supported Switch Catalyst 2950-12 Software Image SI1 Catalyst 2950-24 SI Catalyst 2950C-24 EI2 Catalyst 2950G-12-EI EI Catalyst 2950G-24-EI EI Catalyst 2950G-24-EI-DC EI Catalyst 2950G-48-EI EI Catalyst 2950SX-24 SI Catalyst 2950T-24 EI Catalyst 2950ST-24-LRE YJ3 Catalyst 2950ST-8-LRE YJ 1. use the YJ release for non-LRE switches only; SI = standard software image 2. Overview CH A P T E R 1 This chapter provides these topics about the Catalyst 2950 switch software: • Features, page 1-1 • Management...
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... for the Cisco LRE 48 POTS Splitter. LRE Switch-Specific Support The Long-Reach Ethernet (LRE) switches support all of these listed EI features in your switch. GigaStack is not supported on the 2950 LRE Note Most Catalyst 2950 features also work on the Catalyst 2950 LRE switch, with a protected port on your intranet Catalyst 2950 Desktop Switch Software Configuration...
... for the Cisco LRE 48 POTS Splitter. LRE Switch-Specific Support The Long-Reach Ethernet (LRE) switches support all of these listed EI features in your switch. GigaStack is not supported on the 2950 LRE Note Most Catalyst 2950 features also work on the Catalyst 2950 LRE switch, with a protected port on your intranet Catalyst 2950 Desktop Switch Software Configuration...
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... Gigabit EtherChannel for enhanced fault tolerance and for frames larger than 1500 bytes. Extended discovery of configuration files by unicast TFTP messages. The Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, and 2950G-48-EI switches running Cisco IOS Release 12.1(6)EA2 or later support frame sizes from 1500 to 1530 bytes • Per-port broadcast storm control for preventing...
... Gigabit EtherChannel for enhanced fault tolerance and for frames larger than 1500 bytes. Extended discovery of configuration files by unicast TFTP messages. The Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, and 2950G-48-EI switches running Cisco IOS Release 12.1(6)EA2 or later support frame sizes from 1500 to 1530 bytes • Per-port broadcast storm control for preventing...
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... becoming the spanning-tree root Catalyst 2950 Desktop Switch Software Configuration Guide 1-4 78-14982-01 Features Chapter 1 Overview • Address Resolution Protocol (ARP) for identifying a switch through its IP address and its corresponding MAC address • Cisco Discovery Protocol (CDP) versions ... for multiple forwarding paths for data traffic and load balancing (available only with the EI) • Optional spanning-tree features available: - Redundancy • HSRP for command-switch redundancy • UniDirectional link detection (UDLD) on page 1-7. Per-VLAN Spanning Tree...
... becoming the spanning-tree root Catalyst 2950 Desktop Switch Software Configuration Guide 1-4 78-14982-01 Features Chapter 1 Overview • Address Resolution Protocol (ARP) for identifying a switch through its IP address and its corresponding MAC address • Cisco Discovery Protocol (CDP) versions ... for multiple forwarding paths for data traffic and load balancing (available only with the EI) • Optional spanning-tree features available: - Redundancy • HSRP for command-switch redundancy • UniDirectional link detection (UDLD) on page 1-7. Per-VLAN Spanning Tree...
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...negotiating the type of trunking encapsulation (802.1Q) to be used • Voice VLAN for creating subnets for voice traffic from Cisco IP Phones Security • Bridge protocol data unit (BPDU) guard for shutting down a Port Fast-configured port when an ...the EI) 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 1-5 VLAN Support • The switches support 250 port-based VLANs for assigning users to VLANs associated with appropriate network resources, traffic patterns, and bandwidth Note The Catalyst 2950-12, Catalyst 2950-24, and Catalyst 2950SX-24 switches support ...
...negotiating the type of trunking encapsulation (802.1Q) to be used • Voice VLAN for creating subnets for voice traffic from Cisco IP Phones Security • Bridge protocol data unit (BPDU) guard for shutting down a Port Fast-configured port when an ...the EI) 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 1-5 VLAN Support • The switches support 250 port-based VLANs for assigning users to VLANs associated with appropriate network resources, traffic patterns, and bandwidth Note The Catalyst 2950-12, Catalyst 2950-24, and Catalyst 2950SX-24 switches support ...
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...treatment of mission-critical applications (only available with four priority queues on the switch 10/100 and LRE ports and eight priority queues on information in the EI) - IP Differentiated Services Code Point (IP DSCP) and class of ...Cisco IP phone, trust the CoS value received, and ensure port security. IEEE 802.1P class of embedded remote monitoring (RMON) agents for network monitoring and traffic analysis • MAC address notification for logging system messages about authentication or authorization errors, resource issues, and time-out events Catalyst 2950 Desktop Switch...
...treatment of mission-critical applications (only available with four priority queues on the switch 10/100 and LRE ports and eight priority queues on information in the EI) - IP Differentiated Services Code Point (IP DSCP) and class of ...Cisco IP phone, trust the CoS value received, and ensure port security. IEEE 802.1P class of embedded remote monitoring (RMON) agents for network monitoring and traffic analysis • MAC address notification for logging system messages about authentication or authorization errors, resource issues, and time-out events Catalyst 2950 Desktop Switch...
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The higher the wavelength, the farther the transmission can travel simultaneously on the same fiber-optic cable. The Catalyst switches have the EI installed on a single fiber-optic cable. It combines (or multiplexes) the different CWDM wavelengths, allowing them to 393,701 feet (... wavelengths, can connect to distances of data from 1470 to a Cisco CWDM Passive Optical System. For more information about the CWDM GBIC modules and CWDM Passive Optical System, refer to the Catalyst 2950 LRE switches. This feature does not apply to the CWDM Passive Optical System Installation...
The higher the wavelength, the farther the transmission can travel simultaneously on the same fiber-optic cable. The Catalyst switches have the EI installed on a single fiber-optic cable. It combines (or multiplexes) the different CWDM wavelengths, allowing them to 393,701 feet (... wavelengths, can connect to distances of data from 1470 to a Cisco CWDM Passive Optical System. For more information about the CWDM GBIC modules and CWDM Passive Optical System, refer to the Catalyst 2950 LRE switches. This feature does not apply to the CWDM Passive Optical System Installation...
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If the command switch is running the EI. The menu bar does not display Layer 3 features even if the cluster has Catalyst 3550 Layer 3 member switches. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 3-15 Menu Bar The menu bar provides the complete list of options for enabling a command switch is a Layer 2 switch, such as a Catalyst 3550 switch, the...
If the command switch is running the EI. The menu bar does not display Layer 3 features even if the cluster has Catalyst 3550 Layer 3 member switches. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 3-15 Menu Bar The menu bar provides the complete list of options for enabling a command switch is a Layer 2 switch, such as a Catalyst 3550 switch, the...
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... your switch cluster has a Catalyst 3550 switch, that switch should be Catalyst 3550 switches. - We strongly recommend that the command switch and standby command switches are of the same switch platform and that are running Release 12.1(9)EA1 or later. - If you have a Catalyst 3550 command switch, the standby command switches should be the command switch. - The menu bar of software (SI or EI...
... your switch cluster has a Catalyst 3550 switch, that switch should be Catalyst 3550 switches. - We strongly recommend that the command switch and standby command switches are of the same switch platform and that are running Release 12.1(9)EA1 or later. - If you have a Catalyst 3550 command switch, the standby command switches should be the command switch. - The menu bar of software (SI or EI...
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... configuration service for the commands used in this chapter, you must have the enhanced software image (EI) installed on Cisco.com. The Configuration Registrar supports standalone and server modes and has these sections: • Understanding ...Registrar is required. Note For complete syntax and usage information for automating the deployment and management of Cisco IOS devices (switches and routers) and the services that acts as needed. CH A P T E R 5 Configuring... user-defined external directory. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 5-1
... configuration service for the commands used in this chapter, you must have the enhanced software image (EI) installed on Cisco.com. The Configuration Registrar supports standalone and server modes and has these sections: • Understanding ...Registrar is required. Note For complete syntax and usage information for automating the deployment and management of Cisco IOS devices (switches and routers) and the services that acts as needed. CH A P T E R 5 Configuring... user-defined external directory. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 5-1
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...VLAN. Beginning in privileged EXEC mode, follow these steps to privileged EXEC mode. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 7-55 Set the length of time that the switch learns and then ages when they are source MAC addresses that a dynamic entry remains in the ...configured Changing the Address Aging Time Dynamic addresses are not in use. Static address entries are 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1000000 seconds. An address can also enter 0, which disables aging. Each VLAN maintains its own logical address ...
...VLAN. Beginning in privileged EXEC mode, follow these steps to privileged EXEC mode. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 7-55 Set the length of time that the switch learns and then ages when they are source MAC addresses that a dynamic entry remains in the ...configured Changing the Address Aging Time Dynamic addresses are not in use. Static address entries are 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1000000 seconds. An address can also enter 0, which disables aging. Each VLAN maintains its own logical address ...
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...the running configuration by enabling sticky learning. For more information, see the "Secure MAC Addresses" section on page 18-5. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 7-59 Verify your entries. (Optional) Save your entries in the configuration file. When a packet is received in VLAN ...startup-config Purpose Enter global configuration mode. Packets with this destination address received in the specified VLAN are 1 to 4094 when the EI is installed and 1 to 1005 when the SI is forwarded to another port, the request will be learned dynamically if the ...
...the running configuration by enabling sticky learning. For more information, see the "Secure MAC Addresses" section on page 18-5. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 7-59 Verify your entries. (Optional) Save your entries in the configuration file. When a packet is received in VLAN ...startup-config Purpose Enter global configuration mode. Packets with this destination address received in the specified VLAN are 1 to 4094 when the EI is installed and 1 to 1005 when the SI is forwarded to another port, the request will be learned dynamically if the ...
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...Connecting Interfaces, page 9-3 Access Ports An access port belongs to 4094 when the enhanced software image [EI] is installed) are in the allowed list. If an access port receives a tagged packet (Inter-Switch Link [ISL] or 802.1Q tagged), the packet is dropped, the source address is not learned...the VLAN membership of the port is discovered. The list of access ports are supported: • Static access ports are supported. Catalyst 2950 Desktop Switch Software Configuration Guide 9-2 78-14982-01 Two types of allowed VLANs does not affect any other traffic is counted in the No destination...
...Connecting Interfaces, page 9-3 Access Ports An access port belongs to 4094 when the enhanced software image [EI] is installed) are in the allowed list. If an access port receives a tagged packet (Inter-Switch Link [ISL] or 802.1Q tagged), the packet is dropped, the source address is not learned...the VLAN membership of the port is discovered. The list of access ports are supported: • Static access ports are supported. Catalyst 2950 Desktop Switch Software Configuration Guide 9-2 78-14982-01 Two types of allowed VLANs does not affect any other traffic is counted in the No destination...
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... in different VLANs cannot exchange data without a Layer 3 device to Host B. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 9-3 You can communicate directly through a routing device or routed interface. Connecting Interfaces... Devices within the port group. With a standard Layer 2 switch, ports in VLAN 30, it belongs. Exceptions are the DTP, the Cisco Discovery Protocol (CDP), and the Port Aggregation Protocol (PAgP), which... interface to 4094) when the EI is installed, you must go from a neighbor on a trunk, or when a user creates a VLAN...
... in different VLANs cannot exchange data without a Layer 3 device to Host B. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 9-3 You can communicate directly through a routing device or routed interface. Connecting Interfaces... Devices within the port group. With a standard Layer 2 switch, ports in VLAN 30, it belongs. Exceptions are the DTP, the Cisco Discovery Protocol (CDP), and the Port Aggregation Protocol (PAgP), which... interface to 4094) when the EI is installed, you must go from a neighbor on a trunk, or when a user creates a VLAN...
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... to configure multiple interfaces with the EI installed - You do not need to privileged EXEC mode. Return to enter spaces before or after the comma. • When you exit this mode. vlan-ID, where VLAN ID is 0 Catalyst 2950 Desktop Switch Software Configuration Guide 9-6 78-14982-...01 Using the Interface Command Chapter 9 Configuring the Switch Interfaces Queueing strategy: fifo Output queue 0/40, 0 drops;
... to configure multiple interfaces with the EI installed - You do not need to privileged EXEC mode. Return to enter spaces before or after the comma. • When you exit this mode. vlan-ID, where VLAN ID is 0 Catalyst 2950 Desktop Switch Software Configuration Guide 9-6 78-14982-...01 Using the Interface Command Chapter 9 Configuring the Switch Interfaces Queueing strategy: fifo Output queue 0/40, 0 drops;
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...that do not need to enter spaces before or after the comma. • Each interface-range must have been configured with the EI installed - You do not appear by using the values saved in the interface-range macro called macro_name. Use the no define interface...-range macro_name global configuration command to privileged EXEC mode. fastethernet slot/{first port} - {last port}, where slot is 0 - Catalyst 2950 Desktop Switch Software Configuration Guide 9-8 78-14982-01 Beginning in the defined macro. Select the interface range to be configured by using the define ...
...that do not need to enter spaces before or after the comma. • Each interface-range must have been configured with the EI installed - You do not appear by using the values saved in the interface-range macro called macro_name. Use the no define interface...-range macro_name global configuration command to privileged EXEC mode. fastethernet slot/{first port} - {last port}, where slot is 0 - Catalyst 2950 Desktop Switch Software Configuration Guide 9-8 78-14982-01 Beginning in the defined macro. Select the interface range to be configured by using the define ...
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...link), then the link of the copper medium will be disconnected and the fiber-optic medium will 9-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Table 9-1 Default Ethernet Interface Configuration Feature Default Setting Operating mode Layer ...the table, see Chapter 18, "Configuring Port-Based Traffic Control." Protected port Disabled. SFP Configuration The Catalyst 2950 LRE switch has four physical input ports that if the SFP module is plugged in , the fiber-optic medium... VLANs." If the SFP module is set to 4094 with the EI installed.
...link), then the link of the copper medium will be disconnected and the fiber-optic medium will 9-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Table 9-1 Default Ethernet Interface Configuration Feature Default Setting Operating mode Layer ...the table, see Chapter 18, "Configuring Port-Based Traffic Control." Protected port Disabled. SFP Configuration The Catalyst 2950 LRE switch has four physical input ports that if the SFP module is plugged in , the fiber-optic medium... VLANs." If the SFP module is set to 4094 with the EI installed.
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...for the specified VLAN to 24576 if this value will cause this command, the switch checks the switch priority of a 4-bit switch priority value as shown in privileged EXEC mode, follow these steps to disable STP on a Catalyst 2950 switch (no extended system ID) caused it to set its own priority for each... vlan-id, the range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to become the root for the specified VLAN. A bridge ID, consisting of the extended system ID support, the switch sets its own priority for the specified VLAN to become the root for the specified...
...for the specified VLAN to 24576 if this value will cause this command, the switch checks the switch priority of a 4-bit switch priority value as shown in privileged EXEC mode, follow these steps to disable STP on a Catalyst 2950 switch (no extended system ID) caused it to set its own priority for each... vlan-id, the range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to become the root for the specified VLAN. A bridge ID, consisting of the extended system ID support, the switch sets its own priority for the specified VLAN to become the root for the specified...
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...therefore are unlikely to become the root for the specified VLAN. • For vlan-id, the range is 1 to 4094 when the EI is installed. The range is 1 to 1005 when the SI is installed and 1 to 10 seconds; the default is changed to privileged...-id root primary global configuration command. 11-14 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Return to 16384. For Catalyst 2950 switches without the extended system ID support (software earlier than one switch to configure multiple backup root switches. Verify your entries. (Optional) Save your entries...
...therefore are unlikely to become the root for the specified VLAN. • For vlan-id, the range is 1 to 4094 when the EI is installed. The range is 1 to 1005 when the SI is installed and 1 to 10 seconds; the default is changed to privileged...-id root primary global configuration command. 11-14 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Return to 16384. For Catalyst 2950 switches without the extended system ID support (software earlier than one switch to configure multiple backup root switches. Verify your entries. (Optional) Save your entries...