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... Ethernet Configurations 4-2 Configuring Ethernet and Fast Ethernet Ports 4-3 Setting Ethernet and Fast Ethernet Port Names 4-3 Setting Ethernet and Fast Ethernet Port Priority Levels 4-4 Setting Ethernet and Fast Ethernet Port Speeds 4-4 Setting Ethernet and Fast Ethernet Port Duplex Modes 4-5 Setting Ethernet and Fast Ethernet Port Debounce Timers 4-6 Configuring errdisable State Ethernet and Fast Ethernet Port Timeout Periods 4-7 Checking Ethernet and Fast Ethernet Port Connectivity 4-8 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... Ethernet Configurations 4-2 Configuring Ethernet and Fast Ethernet Ports 4-3 Setting Ethernet and Fast Ethernet Port Names 4-3 Setting Ethernet and Fast Ethernet Port Priority Levels 4-4 Setting Ethernet and Fast Ethernet Port Speeds 4-4 Setting Ethernet and Fast Ethernet Port Duplex Modes 4-5 Setting Ethernet and Fast Ethernet Port Debounce Timers 4-6 Configuring errdisable State Ethernet and Fast Ethernet Port Timeout Periods 4-7 Checking Ethernet and Fast Ethernet Port Connectivity 4-8 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...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 ...Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 v
...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 ...Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 v
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...10-4 VLAN Configuration Guidelines 10-5 Configuring VLANs on the Switch 10-6 Creating or Modifying an Ethernet VLAN 10-6 Creating or Modifying a Normal-Range Ethernet VLAN 10-7 Creating or Modifying an Extended-Range VLAN 10-9 Assigning Switch Ports to a VLAN 10-10 Mapping 802.1Q VLANs ...to ISL VLANs 10-11 Clearing 802.1Q-to-ISL VLAN Mappings 10-12 Deleting a VLAN 10-12 Configuring Auxiliary VLANs 10-13 Understanding Auxiliary VLANs 10-13 Catalyst 4500 Series, Catalyst...
...10-4 VLAN Configuration Guidelines 10-5 Configuring VLANs on the Switch 10-6 Creating or Modifying an Ethernet VLAN 10-6 Creating or Modifying a Normal-Range Ethernet VLAN 10-7 Creating or Modifying an Extended-Range VLAN 10-9 Assigning Switch Ports to a VLAN 10-10 Mapping 802.1Q VLANs ...to ISL VLANs 10-11 Clearing 802.1Q-to-ISL VLAN Mappings 10-12 Deleting a VLAN 10-12 Configuring Auxiliary VLANs 10-13 Understanding Auxiliary VLANs 10-13 Catalyst 4500 Series, Catalyst...
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...a Private VLAN 10-22 Deleting an Isolated or Community 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 11-1 Trunking Modes and Encapsulation Types 11-2 Trunking Support 11-3 802.1Q Trunk...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 Guide-Release 8.1 x 78-15486-01
...a Private VLAN 10-22 Deleting an Isolated or Community 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 11-1 Trunking Modes and Encapsulation Types 11-2 Trunking Support 11-3 802.1Q Trunk...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 Guide-Release 8.1 x 78-15486-01
Software Guide
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... as follows: Chapter Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Title Description Product Overview Presents an overview of the switch. Configuring Ethernet and Fast Ethernet Switching Describes how to perform a baseline configuration of the Catalyst enterprise LAN switches. Configuring Fast EtherChannel Describes how to configure the Spanning Tree Protocol and explains how spanning tree works.
... as follows: Chapter Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Title Description Product Overview Presents an overview of the switch. Configuring Ethernet and Fast Ethernet Switching Describes how to perform a baseline configuration of the Catalyst enterprise LAN switches. Configuring Fast EtherChannel Describes how to configure the Spanning Tree Protocol and explains how spanning tree works.
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... VLAN trunks on the switch. xxiv Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports Describes how to configure unicast flood blocking on Fast Ethernet and Gigabit Ethernet ports. Configuring Dynamic VLAN Membership with VMPS Describes how to configure Cisco Group Management Protocol (CGMP...
... VLAN trunks on the switch. xxiv Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports Describes how to configure unicast flood blocking on Fast Ethernet and Gigabit Ethernet ports. Configuring Dynamic VLAN Membership with VMPS Describes how to configure Cisco Group Management Protocol (CGMP...
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... • 48 10/100BASE-TX Fast Ethernet ports Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-2 78-15486-01 Catalyst 2948G Switch Chapter 1 Product Overview Table 1-1 Catalyst 4000 Series and Catalyst 4500 Series Switches (continued) Product Number WS-C4912G Catalyst 4500 Series WS-C4503 WS-C4506 Chassis Description Catalyst 4912G • Fixed-configuration switch • 12-Gbps backplane • Optional redundant power...
... • 48 10/100BASE-TX Fast Ethernet ports Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 1-2 78-15486-01 Catalyst 2948G Switch Chapter 1 Product Overview Table 1-1 Catalyst 4000 Series and Catalyst 4500 Series Switches (continued) Product Number WS-C4912G Catalyst 4500 Series WS-C4503 WS-C4506 Chassis Description Catalyst 4912G • Fixed-configuration switch • 12-Gbps backplane • Optional redundant power...
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... Overview Catalyst 2980G Switch Catalyst 2980G Switch Note For installation information and a complete description of the available CLI commands, refer to the Catalyst 2948G and 2980G Installation Guide. 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 •...
... Overview Catalyst 2980G Switch Catalyst 2980G Switch Note For installation information and a complete description of the available CLI commands, refer to the Catalyst 2948G and 2980G Installation Guide. 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 •...
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... series, the Catalyst 2948G, and the Catalyst 2980G switches have three management interfaces: • In-band interface (sc0) • SLIP interface (s10) • Management Ethernet interface (me1) The in-band (sc0) management interface is connected to the switching fabric and participates in all of the functions of a normal switch port, such as spanning tree, Cisco Discovery Protocol...
... series, the Catalyst 2948G, and the Catalyst 2980G switches have three management interfaces: • In-band interface (sc0) • SLIP interface (s10) • Management Ethernet interface (me1) The in-band (sc0) management interface is connected to the switching fabric and participates in all of the functions of a normal switch port, such as spanning tree, Cisco Discovery Protocol...
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... -band management Ethernet interface on the IP address. If no reply is received, the sc0 interface IP address remains set to Configure the IP Address and Default Gateway Before you reset or power cycle a switch with a DHCP- If no DHCPOFFER message or BOOTP response is retained. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
... -band management Ethernet interface on the IP address. If no reply is received, the sc0 interface IP address remains set to Configure the IP Address and Default Gateway Before you reset or power cycle a switch with a DHCP- If no DHCPOFFER message or BOOTP response is retained. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
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.... show interface This example shows how to which the IP address belongs). Table 3-2 Switch IP Address and Default Gateway Default Configuration Feature In-band (sc0) interface Management Ethernet (me1) interface Default gateway address SLIP (sl0) interface Default Value • IP ...subnet bits), and (optional) broadcast address to either the in dotted decimal format. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-5 To set the IP address and VLAN membership of the in-band (sc0) management ...
.... show interface This example shows how to which the IP address belongs). Table 3-2 Switch IP Address and Default Gateway Default Configuration Feature In-band (sc0) interface Management Ethernet (me1) interface Default gateway address SLIP (sl0) interface Default Value • IP ...subnet bits), and (optional) broadcast address to either the in dotted decimal format. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-5 To set the IP address and VLAN membership of the in-band (sc0) management ...
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...the interface up Verify the interface configuration. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-6 78-15486-01 Setting the Management Ethernet (me1) Interface IP Address Chapter 3 Configuring the Switch IP Address and Default Gateway This example ...address, perform this task in -band (sc0) logical interface or the management Ethernet (me1) interface. The me1 interface is present only on the Catalyst 4500 series, Catalyst 2948G, and Catalyst 2980G switches. show interface sl0: flags=51 slip 0.0.0.0 dest 0.0.0.0 sc0: flags=63 ...
...the interface up Verify the interface configuration. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-6 78-15486-01 Setting the Management Ethernet (me1) Interface IP Address Chapter 3 Configuring the Switch IP Address and Default Gateway This example ...address, perform this task in -band (sc0) logical interface or the management Ethernet (me1) interface. The me1 interface is present only on the Catalyst 4500 series, Catalyst 2948G, and Catalyst 2980G switches. show interface sl0: flags=51 slip 0.0.0.0 dest 0.0.0.0 sc0: flags=63 ...
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...: Console> (enable) set ip route default gateway [metric] [primary] for the set ip route default gateway [metric] [primary] switch. (Optional) Configure additional default gateways set ip route default 10.1.1.10 Route added. Command clear ip route default gateway clear ip route ...switch. Console> (enable) show ip route in the order they were configured. If both the in-band (sc0) and management Ethernet (me1) interfaces are configured when you might want to make a gateway the primary gateway. sc0 sc0 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
...: Console> (enable) set ip route default gateway [metric] [primary] for the set ip route default gateway [metric] [primary] switch. (Optional) Configure additional default gateways set ip route default 10.1.1.10 Route added. Command clear ip route default gateway clear ip route ...switch. Console> (enable) show ip route in the order they were configured. If both the in-band (sc0) and management Ethernet (me1) interfaces are configured when you might want to make a gateway the primary gateway. sc0 sc0 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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... sections: • Understanding How Ethernet Works, page 4-1 • Default Ethernet and Fast Ethernet Configurations, page 4-2 • Configuring Ethernet and Fast Ethernet Ports, page 4-3 Understanding How Ethernet Works These sections describe how Ethernet switching works on the Catalyst enterprise LAN switches. Switched connections between Ethernet segments last only for the next packet. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release...
... sections: • Understanding How Ethernet Works, page 4-1 • Default Ethernet and Fast Ethernet Configurations, page 4-2 • Configuring Ethernet and Fast Ethernet Ports, page 4-3 Understanding How Ethernet Works These sections describe how Ethernet switching works on the Catalyst enterprise LAN switches. Switched connections between Ethernet segments last only for the next packet. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release...
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... source address and port ID to the address table. When a frame enters the switch, it associates the Media Access Control (MAC) address of seconds, it was received. 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 by high-bandwidth devices and a large number...
... source address and port ID to the address table. When a frame enters the switch, it associates the Media Access Control (MAC) address of seconds, it was received. 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 by high-bandwidth devices and a large number...
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...]] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-3 Setting Ethernet and Fast Ethernet Port Names You can assign names to the ports on Ethernet and Fast Ethernet modules to configure Ethernet and Fast Ethernet switching ports on the Catalyst enterprise LAN switches: • Setting Ethernet and Fast Ethernet Port Names, page 4-3 • Setting Ethernet and Fast Ethernet Port Priority Levels...
...]] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-3 Setting Ethernet and Fast Ethernet Port Names You can assign names to the ports on Ethernet and Fast Ethernet modules to configure Ethernet and Fast Ethernet switching ports on the Catalyst enterprise LAN switches: • Setting Ethernet and Fast Ethernet Port Names, page 4-3 • Setting Ethernet and Fast Ethernet Port Priority Levels...
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...port priority level to determine the order in privileged mode: Task Step 1 Configure the priority level for a port. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-4 78-15486-01 Step 2 Verify that the port names are configured correctly: Console> ...task in which to have the port autonegotiate speed and duplex mode with the neighboring port. Configuring Ethernet and Fast Ethernet Ports Chapter 4 Configuring Ethernet and Fast Ethernet Switching This example shows how to set the name for ports 1/1 and 1/2 and how to verify ...
...port priority level to determine the order in privileged mode: Task Step 1 Configure the priority level for a port. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-4 78-15486-01 Step 2 Verify that the port names are configured correctly: Console> ...task in which to have the port autonegotiate speed and duplex mode with the neighboring port. Configuring Ethernet and Fast Ethernet Ports Chapter 4 Configuring Ethernet and Fast Ethernet Switching This example shows how to set the name for ports 1/1 and 1/2 and how to verify ...
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... Mbps. To set to auto-sensing mode. You cannot change the duplex mode of a port. Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports Caution Make sure that the device on page 4-4. For information on enabling and disabling autonegotiation on 10/100 Fast... mismatch will result. Note If the port speed is set to auto on a 10/100-Mbps Fast Ethernet port, both speed and duplex are autonegotiated. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-5
... Mbps. To set to auto-sensing mode. You cannot change the duplex mode of a port. Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports Caution Make sure that the device on page 4-4. For information on enabling and disabling autonegotiation on 10/100 Fast... mismatch will result. Note If the port speed is set to auto on a 10/100-Mbps Fast Ethernet port, both speed and duplex are autonegotiated. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-5
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... debounce timer will delay link-up , the time the software needs to complete autonegotiation. Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-6 78-15486-01 Command set port debounce mod num/port num {enable |... is the time that the debounce timer of various Layer 2 and Layer 3 protocols. 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 traffic loss due to network reconfiguration.
... debounce timer will delay link-up , the time the software needs to complete autonegotiation. Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-6 78-15486-01 Command set port debounce mod num/port num {enable |... is the time that the debounce timer of various Layer 2 and Layer 3 protocols. 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 traffic loss due to network reconfiguration.
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...>(enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-7 This feature is reenabled automatically after a selected time interval. Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports This example shows how... (enable) show port debounce Port Debounce link timer 2/1 enable 2/2 disable Console> (enable) Configuring errdisable State Ethernet and Fast Ethernet Port Timeout Periods A port is BPDU guard (bpdu-guard): Console> (enable) set errdisable-timeout enable bpdu...
...>(enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-7 This feature is reenabled automatically after a selected time interval. Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports This example shows how... (enable) show port debounce Port Debounce link timer 2/1 enable 2/2 disable Console> (enable) Configuring errdisable State Ethernet and Fast Ethernet Port Timeout Periods A port is BPDU guard (bpdu-guard): Console> (enable) set errdisable-timeout enable bpdu...