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...-01 Configuring Gigabit Ethernet Switching 5-1 Understanding How Gigabit Ethernet Works 5-1 Understanding How Gigabit Ethernet Flow Control Works 5-1 Understanding How Port Negotiation Works 5-3 Understanding How Oversubscribed Gigabit Ethernet Works 5-3 Default Gigabit Ethernet Configuration 5-6 Configuring Gigabit Ethernet Ports 5-7 Assigning Gigabit Ethernet Port Names 5-7 Configuring Gigabit Ethernet Port Priority Levels 5-7 Configuring Flow Control on Gigabit Ethernet Ports 5-8 Enabling Port Negotiation on Gigabit Ethernet Ports 5-9 Disabling Port Negotiation 5-9 Configuring errdisable...
...-01 Configuring Gigabit Ethernet Switching 5-1 Understanding How Gigabit Ethernet Works 5-1 Understanding How Gigabit Ethernet Flow Control Works 5-1 Understanding How Port Negotiation Works 5-3 Understanding How Oversubscribed Gigabit Ethernet Works 5-3 Default Gigabit Ethernet Configuration 5-6 Configuring Gigabit Ethernet Ports 5-7 Assigning Gigabit Ethernet Port Names 5-7 Configuring Gigabit Ethernet Port Priority Levels 5-7 Configuring Flow Control on Gigabit Ethernet Ports 5-8 Enabling Port Negotiation on Gigabit Ethernet Ports 5-9 Disabling Port Negotiation 5-9 Configuring errdisable...
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... VLAN 10-23 Deleting a Private VLAN Mapping 10-23 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports 11-1 Understanding How VLAN Trunks Work 11-1 Trunking Overview ...Port Configuration 12-3 Configuration Guidelines for Dynamic Ports and VMPS 12-3 Configuring VMPS 12-4 Creating the VMPS Database 12-4 Configuring the VMPS Server 12-7 Configuring VMPS Clients 12-8 Monitoring VMPS 12-9 Maintaining VMPS 12-9 Configuring Static Ports 12-10 Troubleshooting VMPS and Dynamic Port VLAN Membership 12-11 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
... VLAN 10-23 Deleting a Private VLAN Mapping 10-23 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports 11-1 Understanding How VLAN Trunks Work 11-1 Trunking Overview ...Port Configuration 12-3 Configuration Guidelines for Dynamic Ports and VMPS 12-3 Configuring VMPS 12-4 Creating the VMPS Database 12-4 Configuring the VMPS Server 12-7 Configuring VMPS Clients 12-8 Monitoring VMPS 12-9 Maintaining VMPS 12-9 Configuring Static Ports 12-10 Troubleshooting VMPS and Dynamic Port VLAN Membership 12-11 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
Software Guide
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... Fast Ethernet and Gigabit Ethernet ports. Configuring Protocol Filtering Describes how to configure protocol filtering on the switch. Configuring the IP Permit List Describes how to configure IP permit list on Ethernet, Fast Ethernet, and Gigabit Ethernet ports. Configuring CDP Describes how to configure Cisco Discovery Protocol (CDP) on the switch. Configuring RMON Describes how to configure Remote Monitoring (RMON) on the switch. Configuring SPAN and RSPAN Describes how to configure the Switched Port Analyzer...
... Fast Ethernet and Gigabit Ethernet ports. Configuring Protocol Filtering Describes how to configure protocol filtering on the switch. Configuring the IP Permit List Describes how to configure IP permit list on Ethernet, Fast Ethernet, and Gigabit Ethernet ports. Configuring CDP Describes how to configure Cisco Discovery Protocol (CDP) on the switch. Configuring RMON Describes how to configure Remote Monitoring (RMON) on the switch. Configuring SPAN and RSPAN Describes how to configure the Switched Port Analyzer...
Software Guide
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... description of the Catalyst 2948G switch hardware, refer to the Catalyst 2948G and 2980G Installation Guide. Table 1-2 Catalyst 2948G Switch Product Number WS-C2948G Chassis Description Catalyst 2948G • Fixed-configuration switch • 12-Gbps backplane • Optional redundant power supplies • Two 1000BASE-X (GBIC) Gigabit Ethernet ports • 48 10/100BASE-TX Fast Ethernet ports Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-2 78...
... description of the Catalyst 2948G switch hardware, refer to the Catalyst 2948G and 2980G Installation Guide. Table 1-2 Catalyst 2948G Switch Product Number WS-C2948G Chassis Description Catalyst 2948G • Fixed-configuration switch • 12-Gbps backplane • Optional redundant power supplies • Two 1000BASE-X (GBIC) Gigabit Ethernet ports • 48 10/100BASE-TX Fast Ethernet ports Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-2 78...
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... descriptions of the Catalyst 2980G switch hardware, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-3 Table 1-3 Catalyst 2980G Switch Product Number WS-C2980G-A Chassis Description Catalyst 2980G • Fixed-configuration switch • 12-Gbps backplane • Optional redundant power supplies • Two 1000BASE-X (GBIC) Gigabit Ethernet ports • 80...
... descriptions of the Catalyst 2980G switch hardware, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-3 Table 1-3 Catalyst 2980G Switch Product Number WS-C2980G-A Chassis Description Catalyst 2980G • Fixed-configuration switch • 12-Gbps backplane • Optional redundant power supplies • Two 1000BASE-X (GBIC) Gigabit Ethernet ports • 80...
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... stations can flow in a properly configured switched environment achieve full access to the bandwidth. Because each Ethernet port on the switches (Gigabit Ethernet ports support only full duplex). When the destination station replies, the switch adds its own 10-, 100-, or 1000-Mbps segment. Default Ethernet and Fast Ethernet Configurations Chapter 4 Configuring Ethernet and Fast Ethernet Switching The Catalyst enterprise LAN switches solve congestion problems that are caused...
... stations can flow in a properly configured switched environment achieve full access to the bandwidth. Because each Ethernet port on the switches (Gigabit Ethernet ports support only full duplex). When the destination station replies, the switch adds its own 10-, 100-, or 1000-Mbps segment. Default Ethernet and Fast Ethernet Configurations Chapter 4 Configuring Ethernet and Fast Ethernet Switching The Catalyst enterprise LAN switches solve congestion problems that are caused...
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... to enable the debounce timer for Ethernet, Fast Ethernet, and Gigabit Ethernet ports. To set the debounce timer on port 2/1 Warning: Enabling port debounce causes Link Up/Down detections to be delayed. Step 2 Verify that occurs before and after the switch enables the debounce timer. Configuring Ethernet and Fast Ethernet Ports Chapter 4 Configuring Ethernet and Fast Ethernet Switching Setting Ethernet and Fast Ethernet Port Debounce Timers You can decrease...
... to enable the debounce timer for Ethernet, Fast Ethernet, and Gigabit Ethernet ports. To set the debounce timer on port 2/1 Warning: Enabling port debounce causes Link Up/Down detections to be delayed. Step 2 Verify that occurs before and after the switch enables the debounce timer. Configuring Ethernet and Fast Ethernet Ports Chapter 4 Configuring Ethernet and Fast Ethernet Switching Setting Ethernet and Fast Ethernet Port Debounce Timers You can decrease...
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... Default Gigabit Ethernet Configuration, page 5-6 • Configuring Gigabit Ethernet Ports, page 5-7 Understanding How Gigabit Ethernet Works The following sections describe how Gigabit Ethernet works. CH A P T E R 5 Configuring Gigabit Ethernet Switching This chapter describes how to other devices. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-1 However, not all Catalyst 4500 series Gigabit Ethernet ports can transmit pause frames to configure Gigabit Ethernet switching on the Catalyst enterprise LAN switches.
... Default Gigabit Ethernet Configuration, page 5-6 • Configuring Gigabit Ethernet Ports, page 5-7 Understanding How Gigabit Ethernet Works The following sections describe how Gigabit Ethernet works. CH A P T E R 5 Configuring Gigabit Ethernet Switching This chapter describes how to other devices. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-1 However, not all Catalyst 4500 series Gigabit Ethernet ports can transmit pause frames to configure Gigabit Ethernet switching on the Catalyst enterprise LAN switches.
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...; WS-X4412-2GB-T This 1000BASE-T 14-port module provides 2 dedicated uplink module ports (GBIC) and 12 oversubscribed ports (possible blocking). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-3 On a 1000BASE-T port, you cannot configure speed or duplex mode. Chapter 5 Configuring Gigabit Ethernet Switching Understanding How Gigabit Ethernet Works Understanding How Port Negotiation Works Caution Unlike autonegotiation with 10/100 Fast Ethernet, Gigabit Ethernet port negotiation...
...; WS-X4412-2GB-T This 1000BASE-T 14-port module provides 2 dedicated uplink module ports (GBIC) and 12 oversubscribed ports (possible blocking). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-3 On a 1000BASE-T port, you cannot configure speed or duplex mode. Chapter 5 Configuring Gigabit Ethernet Switching Understanding How Gigabit Ethernet Works Understanding How Port Negotiation Works Caution Unlike autonegotiation with 10/100 Fast Ethernet, Gigabit Ethernet port negotiation...
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...-port Gigabit EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 Chapter 5 Configuring Gigabit Ethernet Switching Understanding How Gigabit Ethernet Works Table 5-8 shows how the oversubscribed ports are designed for end-station connections. We do not recommend connecting these ports to 2-Gbps bandwidth in one oversubscribed port group and two are grouped for module WS...
...-port Gigabit EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 Chapter 5 Configuring Gigabit Ethernet Switching Understanding How Gigabit Ethernet Works Table 5-8 shows how the oversubscribed ports are designed for end-station connections. We do not recommend connecting these ports to 2-Gbps bandwidth in one oversubscribed port group and two are grouped for module WS...
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... on for transmit (Tx) • All others: Flow control set to off for receive (Rx) and desired for transmit (Tx) Port negotiation Enabled Spanning Tree Protocol Enabled for VLAN 1 Native VLAN VLAN 1 Spanning tree port cost 4 Gigabit EtherChannel Disabled on all Gigabit Ethernet ports (auto mode) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-6 78-15486-01
... on for transmit (Tx) • All others: Flow control set to off for receive (Rx) and desired for transmit (Tx) Port negotiation Enabled Spanning Tree Protocol Enabled for VLAN 1 Native VLAN VLAN 1 Spanning tree port cost 4 Gigabit EtherChannel Disabled on all Gigabit Ethernet ports (auto mode) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-6 78-15486-01
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Chapter 5 Configuring Gigabit Ethernet Switching Configuring Gigabit Ethernet Ports Configuring Gigabit Ethernet Ports The following sections describe how to determine the order in privileged mode: Step 1 Step 2 Task Assign a name to verify that the port name is configured. When two ports simultaneously request access to the switching bus, the switch uses the priority level to configure Gigabit Ethernet switching ports on the Catalyst enterprise LAN switches. Console> (enable) set port name 2/2 Wiring Closet Port 2/2 name set port name...
Chapter 5 Configuring Gigabit Ethernet Switching Configuring Gigabit Ethernet Ports Configuring Gigabit Ethernet Ports The following sections describe how to determine the order in privileged mode: Step 1 Step 2 Task Assign a name to verify that the port name is configured. When two ports simultaneously request access to the switching bus, the switch uses the priority level to configure Gigabit Ethernet switching ports on the Catalyst enterprise LAN switches. Console> (enable) set port name 2/2 Wiring Closet Port 2/2 name set port name...
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... admin oper on on RxPause TxPause Unsupported opcodes 0 0 0 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-8 78-15486-01 mod_num/port_num {off | on Port 2/1 flow control receive administration status set port level mod_num/port_num {normal | high} Verify that the port priority is configured correctly. Configuring Gigabit Ethernet Ports Chapter 5 Configuring Gigabit Ethernet Switching To configure the port priority level, perform this task in privileged mode...
... admin oper on on RxPause TxPause Unsupported opcodes 0 0 0 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-8 78-15486-01 mod_num/port_num {off | on Port 2/1 flow control receive administration status set port level mod_num/port_num {normal | high} Verify that the port priority is configured correctly. Configuring Gigabit Ethernet Ports Chapter 5 Configuring Gigabit Ethernet Switching To configure the port priority level, perform this task in privileged mode...
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... the configuration: Console> (enable) set port negotiation 2/1 enable Port 2/1 negotiation enabled Console> (enable) show port negotiation 2/1 Port Link Negotiation 2/1 disabled Console> (enable) Configuring errdisable State Gigabit Ethernet Port Timeout Periods For information on a 1000BASE-X Gigabit Ethernet port, perform this task in errdisable state, see Chapter 4, "Configuring Ethernet and Fast Ethernet Switching." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-9 Verify the port negotiation configuration...
... the configuration: Console> (enable) set port negotiation 2/1 enable Port 2/1 negotiation enabled Console> (enable) show port negotiation 2/1 Port Link Negotiation 2/1 disabled Console> (enable) Configuring errdisable State Gigabit Ethernet Port Timeout Periods For information on a 1000BASE-X Gigabit Ethernet port, perform this task in errdisable state, see Chapter 4, "Configuring Ethernet and Fast Ethernet Switching." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-9 Verify the port negotiation configuration...
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...> (enable) traceroute somehost traceroute to test. Configuring Gigabit Ethernet Ports Chapter 5 Configuring Gigabit Ethernet Switching Checking Gigabit Ethernet Port Connectivity Note For more detailed information on the switch. Enter the ping and traceroute commands to test. show interface default gateway configured on checking connectivity, see Chapter 20, "Checking....16.1.201) 6 ms 3 ms 3 ms 4 somehost.company.com (10.1.2.3) 3 ms * 2 ms Console> (enable) 5-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
...> (enable) traceroute somehost traceroute to test. Configuring Gigabit Ethernet Ports Chapter 5 Configuring Gigabit Ethernet Switching Checking Gigabit Ethernet Port Connectivity Note For more detailed information on the switch. Enter the ping and traceroute commands to test. show interface default gateway configured on checking connectivity, see Chapter 20, "Checking....16.1.201) 6 ms 3 ms 3 ms 4 somehost.company.com (10.1.2.3) 3 ms * 2 ms Console> (enable) 5-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
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... Gigabit Ethernet ports on your hardware supports EtherChannel, and to confirm which is hardware dependent. In addition, on page 6-5. Depending on the switch. Hardware Support for a 6-slot chassis. Ports in the channel as a trunk. The frame distribution method is sent when a failure identifies the switch, the EtherChannel, and the failed link. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
... Gigabit Ethernet ports on your hardware supports EtherChannel, and to confirm which is hardware dependent. In addition, on page 6-5. Depending on the switch. Hardware Support for a 6-slot chassis. Ports in the channel as a trunk. The frame distribution method is sent when a failure identifies the switch, the EtherChannel, and the failed link. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
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... channel WS-C4003 JAB023806(Sw 3/4 Switch_A> (enable) Switch_B> (enable) show port channel command to configure a two-port Gigabit EtherChannel link between two switches. Figure 6-2 shows two switches connected through four 1000BASE-SX Gigabit Ethernet ports. 6-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 EtherChannel Configuration Examples Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Step 4 %PAGP-5-PORTFROMSTP:Port 1/2 left bridge port 1/2 %PAGP-5-PORTFROMSTP:Port...
... channel WS-C4003 JAB023806(Sw 3/4 Switch_A> (enable) Switch_B> (enable) show port channel command to configure a two-port Gigabit EtherChannel link between two switches. Figure 6-2 shows two switches connected through four 1000BASE-SX Gigabit Ethernet ports. 6-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 EtherChannel Configuration Examples Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Step 4 %PAGP-5-PORTFROMSTP:Port 1/2 left bridge port 1/2 %PAGP-5-PORTFROMSTP:Port...
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... the network topology is different bridge and port parameters). Rapid PVST+ Rapid PVST+ is less overhead in PVST+. Rapid PVST+ uses the same configuration as in the network. Each instance of spanning tree (an MISTP instance). Because each VLAN as PVST+, and you to all Ethernet, Fast Ethernet, and Gigabit Ethernet port-based VLANs on Catalyst 4500 series switches.
... the network topology is different bridge and port parameters). Rapid PVST+ Rapid PVST+ is less overhead in PVST+. Rapid PVST+ uses the same configuration as in the network. Each instance of spanning tree (an MISTP instance). Because each VLAN as PVST+, and you to all Ethernet, Fast Ethernet, and Gigabit Ethernet port-based VLANs on Catalyst 4500 series switches.
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... VLAN trunks work on the Catalyst enterprise LAN switches. The Catalyst 4500 series, 2948G, and 2980G switches support IEEE 802.1Q-802.1Q trunking encapsulation. You can configure a trunk on a single Fast or Gigabit Ethernet port or on configuring VLANs, see Chapter 6, "Configuring Fast EtherChannel and Gigabit EtherChannel." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-1 Trunking Overview...
... VLAN trunks work on the Catalyst enterprise LAN switches. The Catalyst 4500 series, 2948G, and 2980G switches support IEEE 802.1Q-802.1Q trunking encapsulation. You can configure a trunk on a single Fast or Gigabit Ethernet port or on configuring VLANs, see Chapter 6, "Configuring Fast EtherChannel and Gigabit EtherChannel." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-1 Trunking Overview...
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....1Q-capable hardware. The port becomes a trunk port even if the neighboring port does not agree to the change . The port becomes a trunk port if the neighboring port is in the Catalyst 4500 series switch with the set trunk command and describes how they function on Fast Ethernet and Gigabit Ethernet ports. The port becomes a trunk port if the neighboring port is supported in the...
....1Q-capable hardware. The port becomes a trunk port even if the neighboring port does not agree to the change . The port becomes a trunk port if the neighboring port is in the Catalyst 4500 series switch with the set trunk command and describes how they function on Fast Ethernet and Gigabit Ethernet ports. The port becomes a trunk port if the neighboring port is supported in the...