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Contents A A P P E N D I X B A P P E N D I X Replacing a Failed Command Switch with a Cluster Member 28-9 Replacing a Failed Command Switch with Another Switch 28-10 Recovering from Lost Member Connectivity 28-11 Preventing Autonegotiation Mismatches 28-12 Troubleshooting LRE Port Configuration 28-12 GBIC and SFP Module Security ... Download or Upload a Configuration File By Using TFTP B-11 Downloading the Configuration File By Using TFTP B-12 Uploading the Configuration File By Using TFTP B-12 Catalyst 2950 Desktop Switch Software Configuration Guide xxii 78-14982-01
Contents A A P P E N D I X B A P P E N D I X Replacing a Failed Command Switch with a Cluster Member 28-9 Replacing a Failed Command Switch with Another Switch 28-10 Recovering from Lost Member Connectivity 28-11 Preventing Autonegotiation Mismatches 28-12 Troubleshooting LRE Port Configuration 28-12 GBIC and SFP Module Security ... Download or Upload a Configuration File By Using TFTP B-11 Downloading the Configuration File By Using TFTP B-12 Uploading the Configuration File By Using TFTP B-12 Catalyst 2950 Desktop Switch Software Configuration Guide xxii 78-14982-01
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...Note See the "Advantages of traffic to designated ports on a switch port can be managed through a single IP address. - 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 ... performance with the EI) • Dynamic Host Configuration Protocol (DHCP)-based autoconfiguration for automatically configuring the switch during DHCP-based autoconfiguration Note DHCP replaces the Bootstrap Protocol (BOOTP) feature autoconfiguration to the release notes for - Performance • Autosensing of ...
...Note See the "Advantages of traffic to designated ports on a switch port can be managed through a single IP address. - 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 ... performance with the EI) • Dynamic Host Configuration Protocol (DHCP)-based autoconfiguration for automatically configuring the switch during DHCP-based autoconfiguration Note DHCP replaces the Bootstrap Protocol (BOOTP) feature autoconfiguration to the release notes for - Performance • Autosensing of ...
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... there is 80. Verifying Your Changes CMS provides notification cues to the field or table cell. For information about the error. 3-32 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Error Checking A red border around a field or table cell means that you make an error while ...help you track and confirm the changes you entered invalid data in the field. Changes to the switch hardware installation guide. When you enter valid data in the field, a green border replaces the red border until you either save the changes or if you made an unsaved change . ...
... there is 80. Verifying Your Changes CMS provides notification cues to the field or table cell. For information about the error. 3-32 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Error Checking A red border around a field or table cell means that you make an error while ...help you track and confirm the changes you entered invalid data in the field. Changes to the switch hardware installation guide. When you enter valid data in the field, a green border replaces the red border until you either save the changes or if you made an unsaved change . ...
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...cluster name is defined. Disabled. During DHCP-based autoconfiguration, your switch. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 4-3 The DHCP server can be on the same LAN or on your switch. If the DHCP server is running on the destination IP ...model, in the received packet. However, you might also need to Internet hosts and internetworking devices. DHCP-based autoconfiguration replaces the BOOTP client functionality on your switch (DHCP client) is built on the network, you need to configure a Trivial File Transfer Protocol (TFTP) server ...
...cluster name is defined. Disabled. During DHCP-based autoconfiguration, your switch. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 4-3 The DHCP server can be on the same LAN or on your switch. If the DHCP server is running on the destination IP ...model, in the received packet. However, you might also need to Internet hosts and internetworking devices. DHCP-based autoconfiguration replaces the BOOTP client functionality on your switch (DHCP client) is built on the network, you need to configure a Trivial File Transfer Protocol (TFTP) server ...
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...-address} [event] Configuration Registrar. Note The config-cli interface configuration command accepts the special directive character & that acts as the unique ID. 5-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 ip route network-number Establish a static route to be retrieved to define the unique ID. • For {dns... use the MAC address as the unique ID. • (Optional) Enter event to set the ID to the Configuration Registrar whose IP address is replaced with the interface name. or • For interface num, enter the type of interface-for the...
...-address} [event] Configuration Registrar. Note The config-cli interface configuration command accepts the special directive character & that acts as the unique ID. 5-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 ip route network-number Establish a static route to be retrieved to define the unique ID. • For {dns... use the MAC address as the unique ID. • (Optional) Enter event to set the ID to the Configuration Registrar whose IP address is replaced with the interface name. or • For interface num, enter the type of interface-for the...
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...soon as a client to the Default Values, page 8-14 (optional) 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 8-5 In this topology, the wireless access point is authenticated. The switch detects the client when the port link state changes to the unauthorized state. Chapter 8 ...indirectly attached to the port are granted access to the 802.1X-enabled switch port. If the port becomes unauthorized (re-authentication fails or an EAPOL-logoff message is replaced with another client, the switch changes the port link state to down, and the port returns to...
...soon as a client to the Default Values, page 8-14 (optional) 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 8-5 In this topology, the wireless access point is authenticated. The switch detects the client when the port link state changes to the unauthorized state. Chapter 8 ...indirectly attached to the port are granted access to the 802.1X-enabled switch port. If the port becomes unauthorized (re-authentication fails or an EAPOL-logoff message is replaced with another client, the switch changes the port link state to down, and the port returns to...
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... Step 4 end Purpose Enter global configuration mode. Enter interface configuration mode, and specify an interface to privileged EXEC mode. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 13-19 Return to configure. However, if root guard is also enabled, all the VLANs to be used by the... the backup interfaces used by the UplinkFast feature are placed in the network. With UplinkFast, the backup interfaces (in the blocked state) replace the root port in the configuration file. Note You cannot enable both root guard and loop guard at the same time.
... Step 4 end Purpose Enter global configuration mode. Enter interface configuration mode, and specify an interface to privileged EXEC mode. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 13-19 Return to configure. However, if root guard is also enabled, all the VLANs to be used by the... the backup interfaces used by the UplinkFast feature are placed in the network. With UplinkFast, the backup interfaces (in the blocked state) replace the root port in the configuration file. Note You cannot enable both root guard and loop guard at the same time.
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... messages in reply. When the switch receives a hello message, it restarts the detection window on the same port. TX RX Switch B 43583 19-2 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01... Whenever a UDLD device learns about a new neighbor or receives a resynchronization request from Switch B on its detection mechanism. UDLD detects the problem and disables the port. If the switch receives a new hello message before an older cache entry ages, the switch replaces...
... messages in reply. When the switch receives a hello message, it restarts the detection window on the same port. TX RX Switch B 43583 19-2 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01... Whenever a UDLD device learns about a new neighbor or receives a resynchronization request from Switch B on its detection mechanism. UDLD detects the problem and disables the port. If the switch receives a new hello message before an older cache entry ages, the switch replaces...
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...is an interoperable standards-based protocol defined in RFCs 2273 to 2275. Table 24-1 identifies the characteristics of the different combinations of security models and levels. 24-2 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 SNMPv2-Version 2 of the Simple Network ...Access MIB Variables, page 24-4 • SNMP Notifications, page 24-5 SNMP Versions This software release supports these SNMP versions: • SNMPv1-The Simple Network Management Protocol, a Full Internet Standard, defined in RFC 1157. • SNMPv2C replaces the Party-based Administrative and...
...is an interoperable standards-based protocol defined in RFCs 2273 to 2275. Table 24-1 identifies the characteristics of the different combinations of security models and levels. 24-2 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 SNMPv2-Version 2 of the Simple Network ...Access MIB Variables, page 24-4 • SNMP Notifications, page 24-5 SNMP Versions This software release supports these SNMP versions: • SNMPv1-The Simple Network Management Protocol, a Full Internet Standard, defined in RFC 1157. • SNMPv2C replaces the Party-based Administrative and...
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... [config.text]? For more information, see Chapter 6, "Clustering Switches." This section describes two solutions for supplying redundancy to the release notes. 28-8 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 You can manage the members ... for replacing a failed command switch: • Replacing a failed command switch with a cluster member • Replacing a failed command switch with the member switches is not affected, and the member switches forward packets as standalone switches through the other way, management contact with another switch that...
... [config.text]? For more information, see Chapter 6, "Clustering Switches." This section describes two solutions for supplying redundancy to the release notes. 28-8 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 You can manage the members ... for replacing a failed command switch: • Replacing a failed command switch with a cluster member • Replacing a failed command switch with the member switches is not affected, and the member switches forward packets as standalone switches through the other way, management contact with another switch that...
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... the setup program. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 28-9 System Configuration Dialog --- Enter setup, and press Return to configure the switch IP information. for IP address information and passwords. Chapter 28 Troubleshooting Using Recovery Procedures Replacing a Failed Command Switch with a Cluster Member To replace a failed command switch with a command-capable member in...
... the setup program. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 28-9 System Configuration Dialog --- Enter setup, and press Return to configure the switch IP information. for IP address information and passwords. Chapter 28 Troubleshooting Using Recovery Procedures Replacing a Failed Command Switch with a Cluster Member To replace a failed command switch with a command-capable member in...
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... command-capable but ignores leading spaces. When prompted, make sure to enable the switch as the last characters in square brackets '[]'. 28-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Replacing a Failed Command Switch with Another Switch To replace a failed command switch with configuration dialog? [yes/no]: y At any prompt. For details about using Telnet...
... command-capable but ignores leading spaces. When prompted, make sure to enable the switch as the last characters in square brackets '[]'. 28-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Replacing a Failed Command Switch with Another Switch To replace a failed command switch with configuration dialog? [yes/no]: y At any prompt. For details about using Telnet...
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... profile with a lower data rate (for recovering from the switch, and replace it makes data more susceptible to interruptions on page 7-17...transmission. Disable unused LRE ports by terminating them with bundled cables GBIC and SFP Module Security and Identification Cisco-approved Gigabit Interface Converter (GBIC) modules have a serial EEPROM that has the interleaver feature enabled, ...• Adjust upper-layer network protocols to allow for this release. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 28-13 Note If you are close to the limit of the error-...
... profile with a lower data rate (for recovering from the switch, and replace it makes data more susceptible to interruptions on page 7-17...transmission. Disable unused LRE ports by terminating them with bundled cables GBIC and SFP Module Security and Identification Cisco-approved Gigabit Interface Converter (GBIC) modules have a serial EEPROM that has the interleaver feature enabled, ...• Adjust upper-layer network protocols to allow for this release. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 28-13 Note If you are close to the limit of the error-...
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...files contain the current configuration of creating a configuration file: Step 1 Step 2 Step 3 Step 4 Step 5 Copy an existing configuration from a switch to change the running configuration but not save it in DRAM; The running configuration before adding the commands. Creating a Configuration File By Using a ...so that the system can be replaced or negated. Copy the configuration file to the TFTP directory on the workstation (usually /tftpboot on the switch as vi or emacs on UNIX or Notepad on page B-17. B-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-...
...files contain the current configuration of creating a configuration file: Step 1 Step 2 Step 3 Step 4 Step 5 Copy an existing configuration from a switch to change the running configuration but not save it in DRAM; The running configuration before adding the commands. Creating a Configuration File By Using a ...so that the system can be replaced or negated. Copy the configuration file to the TFTP directory on the workstation (usually /tftpboot on the switch as vi or emacs on UNIX or Notepad on page B-17. B-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-...
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... memory (flash:). Caution You cannot restore a file after a download. You can replace the current image with the new one or keep the current image in Flash memory... the version number. Image Location on the Switch The IOS image is stored on the setting of other software images you are using. You upload a switch image file to the Cisco IOS Command Reference for backup purposes. The image... file is currently running on destructive file operations. By default, the switch prompts for web management. B-20 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01
... memory (flash:). Caution You cannot restore a file after a download. You can replace the current image with the new one or keep the current image in Flash memory... the version number. Image Location on the Switch The IOS image is stored on the setting of other software images you are using. You upload a switch image file to the Cisco IOS Command Reference for backup purposes. The image... file is currently running on destructive file operations. By default, the switch prompts for web management. B-20 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01
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...in Flash with Software Images Downloading an Image File By Using TFTP You can download a new image file and replace the current image or keep the current image. Step 1 Step 2 Step 3 Step 4 Command archive download...download-sw /leave-old-sw /reload tftp:[[//location]/directory]/image-name.tar Purpose Copy the image to the switch, and overwrite the current image. • The /overwrite option overwrites the software image in privileged EXEC ... and then reloads the software. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide B-23 see the "Preparing to download.
...in Flash with Software Images Downloading an Image File By Using TFTP You can download a new image file and replace the current image or keep the current image. Step 1 Step 2 Step 3 Step 4 Command archive download...download-sw /leave-old-sw /reload tftp:[[//location]/directory]/image-name.tar Purpose Copy the image to the switch, and overwrite the current image. • The /overwrite option overwrites the software image in privileged EXEC ... and then reloads the software. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide B-23 see the "Preparing to download.
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...example, if the image file resides in the home directory of a user on the server. You can download a new image file and replace or keep the current image, skip Step 6. To keep the current image. Enter global configuration mode. If the server has a directory structure...-username username Purpose Verify that the RCP server is written to or copied from an RCP server and overwrite the existing image. B-30 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Before you override the default remote username (see Steps 4 and 5). (Optional) Specify the remote username...
...example, if the image file resides in the home directory of a user on the server. You can download a new image file and replace or keep the current image, skip Step 6. To keep the current image. Enter global configuration mode. If the server has a directory structure...-username username Purpose Verify that the RCP server is written to or copied from an RCP server and overwrite the existing image. B-30 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Before you override the default remote username (see Steps 4 and 5). (Optional) Specify the remote username...
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... lost member connectivity 28-11 redundant 6-12, 6-22 replacing with another switch 28-10 with cluster member 28-9 requirements 6-3 standby (SC) 6-12, 6-23 See also candidate switch, cluster standby group, member switch, and standby command switch community strings configuring 6-16, 24-7 for cluster switches 24-4 in clusters 6-16 overview 24-4 SNMP 6-16 configuration controller for LRE upgrade 10-17...
... lost member connectivity 28-11 redundant 6-12, 6-22 replacing with another switch 28-10 with cluster member 28-9 requirements 6-3 standby (SC) 6-12, 6-23 See also candidate switch, cluster standby group, member switch, and standby command switch community strings configuring 6-16, 24-7 for cluster switches 24-4 in clusters 6-16 overview 24-4 SNMP 6-16 configuration controller for LRE upgrade 10-17...
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...determining 12-2 BPDU format 12-5 processing 12-6 configuration guidelines 12-12 designated port, defined 12-2 designated switch, defined 12-2 interoperability with 802.1D described 12-11 restarting migration process 12-22 topology changes 12-6...service-provider network, MSTP and RSTP 12-1 set-request operation 24-4 settings duplex mode 10-7 speed 10-7 set-top box, television 1-16 setup program, failed command switch replacement 28-9, 28-10 severity levels, defining in system messages ...12 Simple Network Management Protocol See SNMP Catalyst 2950 Desktop Switch Software Configuration Guide IN-23
...determining 12-2 BPDU format 12-5 processing 12-6 configuration guidelines 12-12 designated port, defined 12-2 designated switch, defined 12-2 interoperability with 802.1D described 12-11 restarting migration process 12-22 topology changes 12-6...service-provider network, MSTP and RSTP 12-1 set-request operation 24-4 settings duplex mode 10-7 speed 10-7 set-top box, television 1-16 setup program, failed command switch replacement 28-9, 28-10 severity levels, defining in system messages ...12 Simple Network Management Protocol See SNMP Catalyst 2950 Desktop Switch Software Configuration Guide IN-23