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...Corrupted Software 32-2 Recovering from Lost or Forgotten Passwords on Non-LRE Catalyst 2950 Switches 32-2 Recovering from Lost or Forgotten Passwords on Catalyst 2950 LRE Switches 32-4 Password Recovery with Password Recovery Enabled 32-5 Procedure with Password ...Switch with Another Switch 32-12 Recovering from Lost Member Connectivity 32-14 Preventing Autonegotiation Mismatches 32-14 GBIC and SFP Module Security and Identification 32-14 Diagnosing Connectivity Problems 32-15 Using Ping 32-15 Understanding Ping 32-15 Executing Ping 32-15 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch...
...Corrupted Software 32-2 Recovering from Lost or Forgotten Passwords on Non-LRE Catalyst 2950 Switches 32-2 Recovering from Lost or Forgotten Passwords on Catalyst 2950 LRE Switches 32-4 Password Recovery with Password Recovery Enabled 32-5 Procedure with Password ...Switch with Another Switch 32-12 Recovering from Lost Member Connectivity 32-14 Preventing Autonegotiation Mismatches 32-14 GBIC and SFP Module Security and Identification 32-14 Diagnosing Connectivity Problems 32-15 Using Ping 32-15 Understanding Ping 32-15 Executing Ping 32-15 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch...
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...conditions, and the status of the Ethernet ports (available only on the Catalyst 2955 switch) LRE Features (available only on Catalyst 2950 LRE switches) • Data, voice, and video transmission through categorized and noncategorized ...Cisco 585 CPE devices • Support for small form-factor pluggable (SFP) modules instead of Gigabit Interface Converter (GBIC) modules • Support for configuring the interleave delay feature • Support for spectral-mode compatibility with the VDSL 997 band plan on Catalyst 2950ST-24 LRE 997 switches Catalyst 2950 and Catalyst 2955 Switch...
...conditions, and the status of the Ethernet ports (available only on the Catalyst 2955 switch) LRE Features (available only on Catalyst 2950 LRE switches) • Data, voice, and video transmission through categorized and noncategorized ...Cisco 585 CPE devices • Support for small form-factor pluggable (SFP) modules instead of Gigabit Interface Converter (GBIC) modules • Support for configuring the interleave delay feature • Support for spectral-mode compatibility with the VDSL 997 band plan on Catalyst 2950ST-24 LRE 997 switches Catalyst 2950 and Catalyst 2955 Switch...
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...or switch. For more information about CMS, see Chapter 7, "Clustering Switches." 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-9 Chapter 1 Overview Management Options Advantages of Using CMS and Clustering Switches Using CMS and switch clusters... • Manage and monitor interconnected Catalyst switches (refer to the release notes for a list of supported switches), regardless of their geographic proximity and interconnection media, including Ethernet, Fast Ethernet, Fast EtherChannel, Cisco GigaStack GBIC, Gigabit Ethernet, and Gigabit EtherChannel ...
...or switch. For more information about CMS, see Chapter 7, "Clustering Switches." 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-9 Chapter 1 Overview Management Options Advantages of Using CMS and Clustering Switches Using CMS and switch clusters... • Manage and monitor interconnected Catalyst switches (refer to the release notes for a list of supported switches), regardless of their geographic proximity and interconnection media, including Ethernet, Fast Ethernet, Fast EtherChannel, Cisco GigaStack GBIC, Gigabit Ethernet, and Gigabit EtherChannel ...
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... a GigaStack configuration, where the 1-Gbps connection is to connect up to manage them through GigaStack GBIC connections. To preserve switch connectivity if one of up to nine Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 switches through a single IP address. • High-performance workgroup-For users who require high-speed access to network resources, use...
... a GigaStack configuration, where the 1-Gbps connection is to connect up to manage them through GigaStack GBIC connections. To preserve switch connectivity if one of up to nine Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 switches through a single IP address. • High-performance workgroup-For users who require high-speed access to network resources, use...
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... cannot exceed 3 feet (1 meter). - Using the required Cisco proprietary signaling and cabling, the GigaStack GBIC-to two backbone switches. To enhance network reliability and load balancing for creating a 1-Gbps stack configuration of up to 32,808 feet (10 kilometers) (supported only on the Catalyst 2950 LRE switches) • Redundant Gigabit backbone-Using HSRP, you can create...
... cannot exceed 3 feet (1 meter). - Using the required Cisco proprietary signaling and cabling, the GigaStack GBIC-to two backbone switches. To enhance network reliability and load balancing for creating a 1-Gbps stack configuration of up to 32,808 feet (10 kilometers) (supported only on the Catalyst 2950 LRE switches) • Redundant Gigabit backbone-Using HSRP, you can create...
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...-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-13 Workstations are connected through a GigaStack GBIC on the same logical segment as web and mail servers). You optimize network performance by placing workstations on each user and improving server response time. Figure 1-2 Small to Medium-Sized Network Configuration Cisco 2600 router Catalyst 2900 XL, Catalyst 2950, Catalyst 3550, and Catalyst...
...-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-13 Workstations are connected through a GigaStack GBIC on the same logical segment as web and mail servers). You optimize network performance by placing workstations on each user and improving server response time. Figure 1-2 Small to Medium-Sized Network Configuration Cisco 2600 router Catalyst 2900 XL, Catalyst 2950, Catalyst 3550, and Catalyst...
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... voice and data. Network Configuration Examples Chapter 1 Overview Servers are connected to the GBIC module ports on the Catalyst 2950 switches. A collapsed backbone has high-bandwidth uplinks from all the Catalyst switches except the Catalyst 4908G-L3 switch. Cisco IP Phones are configured on the Catalyst 3550-24PWR switches provides -48 VDC power to users when needed. Connecting a router to a Fast...
... voice and data. Network Configuration Examples Chapter 1 Overview Servers are connected to the GBIC module ports on the Catalyst 2950 switches. A collapsed backbone has high-bandwidth uplinks from all the Catalyst switches except the Catalyst 4908G-L3 switch. Cisco IP Phones are configured on the Catalyst 3550-24PWR switches provides -48 VDC power to users when needed. Connecting a router to a Fast...
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... MAN ring using Catalyst 3550 multilayer switches as residential switches for customers requiring connectivity through 1000BASE-X GBIC ports. These switches are requiring high-speed access to an aggregation switch. Network Configuration Examples Chapter 1 Overview Figure 1-6 Large Campus Configuration WAN IP telephony network or PSTN Cisco CallManager Cisco 7200 Cisco access or 7500 router gateway Servers Catalyst 6500 switch Catalyst 2950, 2900 XL, 3500...
... MAN ring using Catalyst 3550 multilayer switches as residential switches for customers requiring connectivity through 1000BASE-X GBIC ports. These switches are requiring high-speed access to an aggregation switch. Network Configuration Examples Chapter 1 Overview Figure 1-6 Large Campus Configuration WAN IP telephony network or PSTN Cisco CallManager Cisco 7200 Cisco access or 7500 router gateway Servers Catalyst 6500 switch Catalyst 2950, 2900 XL, 3500...
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..." • Chapter 5, "Assigning the Switch IP Address and Default Gateway" • Chapter 6, "Configuring IE2100 CNS Agents" 1-22 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The higher...switch, review these sections for long-distance transmissions is sent at wavelengths from 1470 nm to 1610 nm. Figure 1-8 Long-Distance, High-Bandwidth Transport Configuration Access layer Aggregation layer 95750 8 Gbps Catalyst switches CWDM OADM modules Eight 1-Gbps connections CWDM OADM modules Catalyst 4500 multilayer switches Where to the Cisco CWDM GBIC...
..." • Chapter 5, "Assigning the Switch IP Address and Default Gateway" • Chapter 6, "Configuring IE2100 CNS Agents" 1-22 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The higher...switch, review these sections for long-distance transmissions is sent at wavelengths from 1470 nm to 1610 nm. Figure 1-8 Long-Distance, High-Bandwidth Transport Configuration Access layer Aggregation layer 95750 8 Gbps Catalyst switches CWDM OADM modules Eight 1-Gbps connections CWDM OADM modules Catalyst 4500 multilayer switches Where to the Cisco CWDM GBIC...
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... switch hardware installation guide. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-1 A switch port can be 10/100 Ethernet ports, 10/100/1000 Ethernet ports, 100BASE-FX ports, 1000BASE-SX ports, Long-Reach Ethernet (LRE) ports, Gigabit Interface Converter (GBIC)... module ports, or small form-factor pluggable (SFP)-module ports. Switch ports are used in this release and the online Cisco IOS Interface Command Reference for switch ports. The chapter has these interface types. Configure switch ports by using the...
... switch hardware installation guide. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-1 A switch port can be 10/100 Ethernet ports, 10/100/1000 Ethernet ports, 100BASE-FX ports, 1000BASE-SX ports, Long-Reach Ethernet (LRE) ports, Gigabit Interface Converter (GBIC)... module ports, or small form-factor pluggable (SFP)-module ports. Switch ports are used in this release and the online Cisco IOS Interface Command Reference for switch ports. The chapter has these interface types. Configure switch ports by using the...
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...• 100BASE-FX ports on the Catalyst 2950C-24 switch • 1000BASE-SX ports on the Catalyst 2950SX-24 switch • 1000BASE-SX ports on the Catalyst 2950SX-48-SI switch • GBIC ports • Fiber-optic SFP-module ports on the Catalyst 2950 LRE switch Note You cannot configure speed or duplex... mode on GBIC ports, but for Gigabit Ethernet ...
...• 100BASE-FX ports on the Catalyst 2950C-24 switch • 1000BASE-SX ports on the Catalyst 2950SX-24 switch • 1000BASE-SX ports on the Catalyst 2950SX-48-SI switch • GBIC ports • Fiber-optic SFP-module ports on the Catalyst 2950 LRE switch Note You cannot configure speed or duplex... mode on GBIC ports, but for Gigabit Ethernet ...
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...or full-duplex mode. The ports can operate at 1000 Mbps only in full-duplex mode. • Fiber-optic SFP-module ports on the Catalyst 2950 LRE switch operate only at 1000 Mbps in full-duplex mode. • GigaStack-to-GigaStack cascade connections operate in half-duplex mode, and GigaStackto-GigaStack point...active, the switch advertises the speed and duplex settings as 1000 Mbps with the remote device. • 100BASE-FX ports operate only at 100 Mbps and in full-duplex mode. • 1000BASE-SX ports operate only at 1000 Mbps and in full-duplex mode. • 1000BASE-T GBICs operate only at...
...or full-duplex mode. The ports can operate at 1000 Mbps only in full-duplex mode. • Fiber-optic SFP-module ports on the Catalyst 2950 LRE switch operate only at 1000 Mbps in full-duplex mode. • GigaStack-to-GigaStack cascade connections operate in half-duplex mode, and GigaStackto-GigaStack point...active, the switch advertises the speed and duplex settings as 1000 Mbps with the remote device. • 100BASE-FX ports operate only at 100 Mbps and in full-duplex mode. • 1000BASE-SX ports operate only at 1000 Mbps and in full-duplex mode. • 1000BASE-T GBICs operate only at...
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.../1000 Mbps ports. 100BASE-FX ports operate only at 100 Mbps. 1000BASE-SX ports and GBIC module ports operate only at 1000 Mbps. To return all interface settings to privileged EXEC mode. 11-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Enter the duplex parameter for the interface. Return to...
.../1000 Mbps ports. 100BASE-FX ports operate only at 100 Mbps. 1000BASE-SX ports and GBIC module ports operate only at 1000 Mbps. To return all interface settings to privileged EXEC mode. 11-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Enter the duplex parameter for the interface. Return to...
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... is suitable for hub-to-end node connections, where it is desirable for the hub to on the 10/100/1000, 1000BASE-SX, GBIC-module, and SFP-module ports. You use the default interface interface-id interface configuration command. You can enable or disable fiber-optic or ... control. • receive on (or desired) and send off and send desired. Flow control can receive pause frames. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-13 Before configuring flow control on an interface, make sure to return to flow control settings on the device: ...
... is suitable for hub-to-end node connections, where it is desirable for the hub to on the 10/100/1000, 1000BASE-SX, GBIC-module, and SFP-module ports. You use the default interface interface-id interface configuration command. You can enable or disable fiber-optic or ... control. • receive on (or desired) and send off and send desired. Flow control can receive pause frames. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-13 Before configuring flow control on an interface, make sure to return to flow control settings on the device: ...
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...macro when connecting an access switch and a distribution switch or between access switches connected using GigaStack modules or GBICs. This section includes information about Cisco-recommended configuration templates, refer to this Smartports website: http://www.cisco.com/go/smartports Configuring ...Smartports Macro Configuration There are no Smartports macros enabled. 12-2 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 cisco-switch Use this interface configuration macro when connecting the switch and a WAN router. You can use to create Smartports ...
...macro when connecting an access switch and a distribution switch or between access switches connected using GigaStack modules or GBICs. This section includes information about Cisco-recommended configuration templates, refer to this Smartports website: http://www.cisco.com/go/smartports Configuring ...Smartports Macro Configuration There are no Smartports macros enabled. 12-2 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 cisco-switch Use this interface configuration macro when connecting the switch and a WAN router. You can use to create Smartports ...
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... three cascaded stacks that are acceptable for Option 3 1 1 1 6 10 6 4 7 4 Figure 14-4 Gigabit Ethernet Stack Catalyst 3550 series switch Catalyst 2950, Cisco 7000 2955, or 3550 router switches Catalyst 2950, 2955, or 3550 switches Catalyst 2950, 2955, or 3550 switches Catalyst 3550 or 6000 series backbone Catalyst 6000 switch Layer 3 backbone Cisco 7000 router Option 1: standalone cascaded cluster Option 2: cascaded cluster connected to a Layer 2 backbone Option 3: cascaded...
... three cascaded stacks that are acceptable for Option 3 1 1 1 6 10 6 4 7 4 Figure 14-4 Gigabit Ethernet Stack Catalyst 3550 series switch Catalyst 2950, Cisco 7000 2955, or 3550 router switches Catalyst 2950, 2955, or 3550 switches Catalyst 2950, 2955, or 3550 switches Catalyst 3550 or 6000 series backbone Catalyst 6000 switch Layer 3 backbone Cisco 7000 router Option 1: standalone cascaded cluster Option 2: cascaded cluster connected to a Layer 2 backbone Option 3: cascaded...
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... Cross-stack UplinkFast (CSUF) provides a fast spanning-tree transition (fast convergence in less than 1 second. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 16-5 Link A, the root link, is in a shared cascaded configuration (multidrop backbone). Links B and C ...cascaded through the GigaStack GBIC module to the root. If Switch A fails, if its link to the stack backbone; in these cases, the normal spanning-tree transition occurs, completing in the stack is placed in some configurations. As shown in Figure 16-5, Switches A, B, and C...
... Cross-stack UplinkFast (CSUF) provides a fast spanning-tree transition (fast convergence in less than 1 second. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 16-5 Link A, the root link, is in a shared cascaded configuration (multidrop backbone). Links B and C ...cascaded through the GigaStack GBIC module to the root. If Switch A fails, if its link to the stack backbone; in these cases, the normal spanning-tree transition occurs, completing in the stack is placed in some configurations. As shown in Figure 16-5, Switches A, B, and C...
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...-tree topology converges at a time. 16-6 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The sending switch then has not received acknowledgements from all stack switches are received from each switch in "Events that Cause Fast Convergence" section on...root port Alternate stackroot port Alternate stackroot port Switch A Stack port Switch B Stack port Switch C Stack port 49067 Multidrop backbone (GigaStack GBIC connections) CSUF uses the Stack Membership Discovery Protocol to the sending switch (drops the packet). otherwise, it must obtain...
...-tree topology converges at a time. 16-6 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The sending switch then has not received acknowledgements from all stack switches are received from each switch in "Events that Cause Fast Convergence" section on...root port Alternate stackroot port Alternate stackroot port Switch A Stack port Switch B Stack port Switch C Stack port 49067 Multidrop backbone (GigaStack GBIC connections) CSUF uses the Stack Membership Discovery Protocol to the sending switch (drops the packet). otherwise, it must obtain...
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... comes back up, the normal spanning-tree convergence occurs. Limitations These limitations apply to CSUF: • CSUF uses the GigaStack GBIC module and runs on all Catalyst 3550 switches, all Catalyst 3500 XL switches, Catalyst 2950 switches with GBIC module slots, and only on the network event or failure, the CSUF fast convergence might or might not occur. If...
... comes back up, the normal spanning-tree convergence occurs. Limitations These limitations apply to CSUF: • CSUF uses the GigaStack GBIC module and runs on all Catalyst 3550 switches, all Catalyst 3500 XL switches, Catalyst 2950 switches with GBIC module slots, and only on the network event or failure, the CSUF fast convergence might or might not occur. If...
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...9 10 11 12 11X 2X 12X Catalyst 2950 1 2 1 2 GigaStack GBIC connection for normal convergence Catalyst 2950G-12 SYST RPS STAT UTIL DUPLXSPEED MODE 12 1X 34 56 78 9 10 11 12 11X 2X 12X Catalyst 2950 1 2 1 2 Catalyst 2950G-24 SYST RPS STAT UTIL DUPLXSPEED...Catalyst 2950 2 1 2 Catalyst 2950G-48 SYSTEM RPS STATUS UTIL DUPLX SPEED MODE 12 1X 34 2X 56 78 9 10 9 10 9 10 9 10 12 11X1X 34 21X2X 56 78 9 10 9 10 9 10 9 10 12 11X1X 34 21X2X 56 Catalyst 2950 78 9 10 9 10 9 10 9 10 1 1 2 1 65276 16-8 Catalyst 2950 and Catalyst 2955 Switch...
...9 10 11 12 11X 2X 12X Catalyst 2950 1 2 1 2 GigaStack GBIC connection for normal convergence Catalyst 2950G-12 SYST RPS STAT UTIL DUPLXSPEED MODE 12 1X 34 56 78 9 10 11 12 11X 2X 12X Catalyst 2950 1 2 1 2 Catalyst 2950G-24 SYST RPS STAT UTIL DUPLXSPEED...Catalyst 2950 2 1 2 Catalyst 2950G-48 SYSTEM RPS STATUS UTIL DUPLX SPEED MODE 12 1X 34 2X 56 78 9 10 9 10 9 10 9 10 12 11X1X 34 21X2X 56 78 9 10 9 10 9 10 9 10 12 11X1X 34 21X2X 56 Catalyst 2950 78 9 10 9 10 9 10 9 10 1 1 2 1 65276 16-8 Catalyst 2950 and Catalyst 2955 Switch...