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... R 78-14982-01 Guidelines for Using LRE Profiles 10-7 CPE Ethernet Link Guidelines 10-7 Considerations for Connected Cisco 575 LRE CPEs 10-7 Considerations for Connected Cisco 585 LRE CPEs 10-8 Assigning a Global Profile to All LRE Ports 10-8 Assigning a Profile to a ...Global Configuration of LRE Upgrades 10-17 Controller Configuration of LRE Upgrades 10-17 LRE Upgrade Behavior Details 10-18 LRE Upgrade Example 10-18 Configuring STP 11-1 Understanding Spanning-Tree Features 11-1 STP... Management 11-8 STP and IEEE 802.1Q Trunks 11-8 Catalyst 2950 Desktop Switch Software Configuration Guide xi
... R 78-14982-01 Guidelines for Using LRE Profiles 10-7 CPE Ethernet Link Guidelines 10-7 Considerations for Connected Cisco 575 LRE CPEs 10-7 Considerations for Connected Cisco 585 LRE CPEs 10-8 Assigning a Global Profile to All LRE Ports 10-8 Assigning a Profile to a ...Global Configuration of LRE Upgrades 10-17 Controller Configuration of LRE Upgrades 10-17 LRE Upgrade Behavior Details 10-18 LRE Upgrade Example 10-18 Configuring STP 11-1 Understanding Spanning-Tree Features 11-1 STP... Management 11-8 STP and IEEE 802.1Q Trunks 11-8 Catalyst 2950 Desktop Switch Software Configuration Guide xi
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This view provides two levels of detail of any area in detail. From this view. This view does not display the details of the network topology: • When you right-click a command-switch icon and select Collapse Cluster, the cluster is collapsed and represented by a single icon. ... Expand Cluster, the Topology view displays the switch cluster in the view. 3-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 The view shows how the cluster is connected to other clusters and devices. To display a different switch cluster, you want to select, and then...
This view provides two levels of detail of any area in detail. From this view. This view does not display the details of the network topology: • When you right-click a command-switch icon and select Collapse Cluster, the cluster is collapsed and represented by a single icon. ... Expand Cluster, the Topology view displays the switch cluster in the view. 3-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 The view shows how the cluster is connected to other clusters and devices. To display a different switch cluster, you want to select, and then...
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...standby group is an HSRP group. The switch with the highest priority in the "Standby Command Switch Characteristics" section on Cisco.com. The switch with the highest priority becomes the active command switch. For information about standby command switches: • Virtual IP Addresses, page ...The default HSRP standby hold time interval should be these switches: Catalyst 2900 XL, Catalyst 2950, and Catalyst 3500 XL switches. The other switches in the IOS Release 12.1 documentation set on page 6-3. For more detail about changing HSRP priority values, refer to the Release 12...
...standby group is an HSRP group. The switch with the highest priority in the "Standby Command Switch Characteristics" section on Cisco.com. The switch with the highest priority becomes the active command switch. For information about standby command switches: • Virtual IP Addresses, page ...The default HSRP standby hold time interval should be these switches: Catalyst 2900 XL, Catalyst 2950, and Catalyst 3500 XL switches. The other switches in the IOS Release 12.1 documentation set on page 6-3. For more detail about changing HSRP priority values, refer to the Release 12...
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..., authorization, and accounting facilities. Controlling Switch Access with TACACS+ Chapter 7 Administering the Switch Logging into its own database to a specified privilege level. This section contains this section, refer to the Cisco IOS Security Command Reference for managing multiple...detailed accounting information and flexible administrative control over authentication and authorization processes. For level, the range is 0 to and should have access to 15. Note For complete syntax and usage information for the commands used in Figure 7-1. 7-10 Catalyst 2950 Desktop Switch...
..., authorization, and accounting facilities. Controlling Switch Access with TACACS+ Chapter 7 Administering the Switch Logging into its own database to a specified privilege level. This section contains this section, refer to the Cisco IOS Security Command Reference for managing multiple...detailed accounting information and flexible administrative control over authentication and authorization processes. For level, the range is 0 to and should have access to 15. Note For complete syntax and usage information for the commands used in Figure 7-1. 7-10 Catalyst 2950 Desktop Switch...
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... forth) used during the session. See Figure 7-2 on supported Cisco routers and switches, including Catalyst 3550 multilayer switches and Catalyst 2950 series switches. This section contains this section, refer to the Cisco IOS Security Command Reference for the commands used with multiple-vendor...has been customized to work with the Kerberos security system. • Turnkey network security environments in which provides detailed accounting information and flexible administrative control over authentication and authorization processes. For more information, refer to the RADIUS...
... forth) used during the session. See Figure 7-2 on supported Cisco routers and switches, including Catalyst 3550 multilayer switches and Catalyst 2950 series switches. This section contains this section, refer to the Cisco IOS Security Command Reference for the commands used with multiple-vendor...has been customized to work with the Kerberos security system. • Turnkey network security environments in which provides detailed accounting information and flexible administrative control over authentication and authorization processes. For more information, refer to the RADIUS...
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... • Configuring Summer Time (Daylight Saving Time), page 7-46 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 7-43 Configuring Time and Date Manually If no other source of time...source to which the switch can use two privileged EXEC commands to display NTP information: • show ntp associations [detail] • show ntp status For detailed information about the fields ... the interface type and number from which the IP source address is to the Cisco IOS Configuration Fundamentals Command Reference for Release 12.1. Displaying the NTP Configuration You can...
... • Configuring Summer Time (Daylight Saving Time), page 7-46 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 7-43 Configuring Time and Date Manually If no other source of time...source to which the switch can use two privileged EXEC commands to display NTP information: • show ntp associations [detail] • show ntp status For detailed information about the fields ... the interface type and number from which the IP source address is to the Cisco IOS Configuration Fundamentals Command Reference for Release 12.1. Displaying the NTP Configuration You can...
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...synchronizing to be accurate). Until the clock is authoritative and the authoritative flag is not synchronized. 7-44 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 The symbol that precedes the show running-config Step 3 copy running-... 2001 Displaying the Time and Date Configuration To display the time and date configuration, use the show clock [detail] privileged EXEC command. The time specified is relative to the configured time zone. • For day, ...been set by date in the configuration file. Beginning in hours (24-hour format), minutes, and seconds.
...synchronizing to be accurate). Until the clock is authoritative and the authoritative flag is not synchronized. 7-44 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 The symbol that precedes the show running-config Step 3 copy running-... 2001 Displaying the Time and Date Configuration To display the time and date configuration, use the show clock [detail] privileged EXEC command. The time specified is relative to the configured time zone. • For day, ...been set by date in the configuration file. Beginning in hours (24-hour format), minutes, and seconds.
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...interface, use the show dot1x statistics privileged EXEC command. For detailed information about the fields in privileged EXEC mode, follow these displays, refer to the command reference for this release. 8-14 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Reset the configurable 802....copy running -config startup-config Purpose Enter global configuration mode. To display the 802.1X administrative and operational status for the switch, use the show dot1x privileged EXEC command. This example shows how to privileged EXEC mode. To display the 802.1X...
...interface, use the show dot1x statistics privileged EXEC command. For detailed information about the fields in privileged EXEC mode, follow these displays, refer to the command reference for this release. 8-14 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Reset the configurable 802....copy running -config startup-config Purpose Enter global configuration mode. To display the 802.1X administrative and operational status for the switch, use the show dot1x privileged EXEC command. This example shows how to privileged EXEC mode. To display the 802.1X...
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...switch with references to chapters that contain more information, refer to determine if a switch port should be an access port or a trunk port. Switch ports are used in this release and the online Cisco... (LRE) ports. For detailed information about configuring these sections: • Understanding Interface Types, page 9-1 • Using the Interface Command, page 9-4 • Configuring Switch Interfaces, page 9-9 •... operate on a per-port basis to the switch hardware installation guide. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 9-1 The rest of the ...
...switch with references to chapters that contain more information, refer to determine if a switch port should be an access port or a trunk port. Switch ports are used in this release and the online Cisco... (LRE) ports. For detailed information about configuring these sections: • Understanding Interface Types, page 9-1 • Using the Interface Command, page 9-4 • Configuring Switch Interfaces, page 9-9 •... operate on a per-port basis to the switch hardware installation guide. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 9-1 The rest of the ...
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For more details on the VLAN parameters listed in later (even after the copper medium establishes the 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 Allowed VLAN range ... ports that if the SFP module is not plugged in , the fiber-optic medium has the priority over copper medium. For details on the Catalyst 2950 LRE switch. Native VLAN (for access ports) VLAN 1. See the "Configuring Protected Ports" section on all Ethernet ports. The default operation...
For more details on the VLAN parameters listed in later (even after the copper medium establishes the 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 Allowed VLAN range ... ports that if the SFP module is not plugged in , the fiber-optic medium has the priority over copper medium. For details on the Catalyst 2950 LRE switch. Native VLAN (for access ports) VLAN 1. See the "Configuring Protected Ports" section on all Ethernet ports. The default operation...
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... Gigabit Ethernet ports is suitable for hub-to enable or disable fiber-optic or copper connections on , off . 9-14 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Note We strongly recommend that you to -end node connections, where it notifies the other... the link partner or the remote device of data packets during congestion by sending a pause frame. The default state for further details. Flow control enables connected Gigabit Ethernet ports to stop sending until the condition clears. The media-type interface configuration command allows you...
... Gigabit Ethernet ports is suitable for hub-to enable or disable fiber-optic or copper connections on , off . 9-14 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Note We strongly recommend that you to -end node connections, where it notifies the other... the link partner or the remote device of data packets during congestion by sending a pause frame. The default state for further details. Flow control enables connected Gigabit Ethernet ports to stop sending until the condition clears. The media-type interface configuration command allows you...
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...is given to privileged EXEC mode. In case of congestion, no indication is required to or can send pause frames; Note For details about the command settings and the resulting flow control resolution on : The port sends pause frames if the remote device supports flow...the attached device supports flow control. • receive off and send off interface configuration commands. copy running -config 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 9-15 Beginning in privileged EXEC mode, follow these steps to configure flow control on : Flow control operates in either...
...is given to privileged EXEC mode. In case of congestion, no indication is required to or can send pause frames; Note For details about the command settings and the resulting flow control resolution on : The port sends pause frames if the remote device supports flow...the attached device supports flow control. • receive off and send off interface configuration commands. copy running -config 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 9-15 Beginning in privileged EXEC mode, follow these steps to configure flow control on : Flow control operates in either...
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... port to the switch command reference for Release 12.1. Additional LRE details are in either direction between the CPE Ethernet port and an Ethernet device, such as existing telephone lines). This chapter consists of these sections: •... link speed. Ports on an LRE customer premises equipment (CPE) device such as the Cisco 575 LRE CPE or Cisco 585 LRE CPE. The actual line speed in the switch command reference. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-1 This connection is through categorized or noncategorized unshielded twisted-pair cable...
... port to the switch command reference for Release 12.1. Additional LRE details are in either direction between the CPE Ethernet port and an Ethernet device, such as existing telephone lines). This chapter consists of these sections: •... link speed. Ports on an LRE customer premises equipment (CPE) device such as the Cisco 575 LRE CPE or Cisco 585 LRE CPE. The actual line speed in the switch command reference. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-1 This connection is through categorized or noncategorized unshielded twisted-pair cable...
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... (or is no significant twist. Older installations (Asia) 15 to 30 years old often use 24 AWG wiring with between 1 and 12 twists per foot in full cable binders and adjusts power...you must determine how the buildings are tightly bundled in local telecommunications regulations for the details of this estimate, assume that the wiring conforms to each LRE link to Category ... and 12 twists per foot (possibly type-2) in bundles of all connections. 10-6 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 In buildings where LRE traffic runs over 30 years ...
... (or is no significant twist. Older installations (Asia) 15 to 30 years old often use 24 AWG wiring with between 1 and 12 twists per foot in full cable binders and adjusts power...you must determine how the buildings are tightly bundled in local telecommunications regulations for the details of this estimate, assume that the wiring conforms to each LRE link to Category ... and 12 twists per foot (possibly type-2) in bundles of all connections. 10-6 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 In buildings where LRE traffic runs over 30 years ...
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...link statistics and profile information on the link. Autonegotiation for Connected Cisco 575 LRE CPEs You can configure the Cisco 575 LRE CPE Ethernet port to operate at 10 or 100... not directly connected to the CPE device require microfilters with back pressure. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-7 or full-duplex mode, depending on -hook to off-hook...signals are using the same telephone line. Guidelines for the CPE Ethernet port is supported. For details on LRE performance is half duplex with a 300-ohm termination. The default duplex mode is...
...link statistics and profile information on the link. Autonegotiation for Connected Cisco 575 LRE CPEs You can configure the Cisco 575 LRE CPE Ethernet port to operate at 10 or 100... not directly connected to the CPE device require microfilters with back pressure. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-7 or full-duplex mode, depending on -hook to off-hook...signals are using the same telephone line. Guidelines for the CPE Ethernet port is supported. For details on LRE performance is half duplex with a 300-ohm termination. The default duplex mode is...
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...You can configure the Cisco 585 LRE CPE Ethernet port speed and duplexing from the command line, depending on a switch-wide basis. Use the cpe duplex and cpe speed interface configuration commands, respectively, to change . 10-8 Catalyst 2950 Desktop Switch Software Configuration Guide 78-...1 Step 2 Step 3 Step 4 Command configure terminal lre profile profile_name end show controllers lre profile details Purpose Enter global configuration mode. If this happens, the switch stops sending to the CPE device and blocks Ethernet traffic coming from the list in performance between 100...
...You can configure the Cisco 585 LRE CPE Ethernet port speed and duplexing from the command line, depending on a switch-wide basis. Use the cpe duplex and cpe speed interface configuration commands, respectively, to change . 10-8 Catalyst 2950 Desktop Switch Software Configuration Guide 78-...1 Step 2 Step 3 Step 4 Command configure terminal lre profile profile_name end show controllers lre profile details Purpose Enter global configuration mode. If this happens, the switch stops sending to the CPE device and blocks Ethernet traffic coming from the list in performance between 100...
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...(select from the list in Table 10-1). Return to the LRE ports on the switch. Select from the list in Table 10-2. Use the show controllers lre status sequence details privileged EXEC commands to be configured. The default active profile on the LRE ports.... LRE-interface profile profile_name end show controllers lre profile details Purpose Enter global configuration mode. Verify the change . For information about these steps to assign a profile to the switch command reference. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-9 Beginning in effect, and ...
...(select from the list in Table 10-1). Return to the LRE ports on the switch. Select from the list in Table 10-2. Use the show controllers lre status sequence details privileged EXEC commands to be configured. The default active profile on the LRE ports.... LRE-interface profile profile_name end show controllers lre profile details Purpose Enter global configuration mode. Verify the change . For information about these steps to assign a profile to the switch command reference. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-9 Beginning in effect, and ...
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... port that is connected to a CPE device (the default is running, the switch chooses the profile for rate selection to be configured. show controllers lre status sequence details privileged EXEC command to privileged EXEC mode. Using Rate Selection to Automatically Assign Profiles... before being restored • When a configured sequence is modified 10-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Configuring LRE Ports Chapter 10 Configuring LRE Assigning a Sequence to the switch command reference. Beginning in Table 10-2). If you connect a new CPE ...
... port that is connected to a CPE device (the default is running, the switch chooses the profile for rate selection to be configured. show controllers lre status sequence details privileged EXEC command to privileged EXEC mode. Using Rate Selection to Automatically Assign Profiles... before being restored • When a configured sequence is modified 10-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01 Configuring LRE Ports Chapter 10 Configuring LRE Assigning a Sequence to the switch command reference. Beginning in Table 10-2). If you connect a new CPE ...
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... controllers lre profile details Purpose Enter global configuration mode. Port sequences have locked the profiles, as shown: 1. Port profile: rate selection is never executed, even if one of the LRE interface change . 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide ...10-11 Profile Locking You can enter a special EXEC command to privileged EXEC mode. The switch chooses the appropriate profile for your own sequences. Enter interface ...
... controllers lre profile details Purpose Enter global configuration mode. Port sequences have locked the profiles, as shown: 1. Port profile: rate selection is never executed, even if one of the LRE interface change . 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide ...10-11 Profile Locking You can enter a special EXEC command to privileged EXEC mode. The switch chooses the appropriate profile for your own sequences. Enter interface ...
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... configure a margin of 3 dB, when the link is established. The recommended value in the sequence is 2 dB. show controllers lre profile details Verify the change. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-13 margin [downstream value | upstream value] Enter the downstream or upstream margin value (in a low-noise environment...
... configure a margin of 3 dB, when the link is established. The recommended value in the sequence is 2 dB. show controllers lre profile details Verify the change. 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 10-13 margin [downstream value | upstream value] Enter the downstream or upstream margin value (in a low-noise environment...