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... Console> (enable) set of characters. For example, enter co? Command-Line Editing The switch CLI supports a number of the word. Table 2-1 lists the keystrokes you entered without the question mark...Line Editing Keystrokes Keystroke Function Ctrl-A Ctrl-B or the Left Arrow key1 Jumps to the end of the variable and the question mark (?). Moves the cursor back one word. Do ...start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Ctrl-C Escapes and terminates prompts and lengthy...
... Console> (enable) set of characters. For example, enter co? Command-Line Editing The switch CLI supports a number of the word. Table 2-1 lists the keystrokes you entered without the question mark...Line Editing Keystrokes Keystroke Function Ctrl-A Ctrl-B or the Left Arrow key1 Jumps to the end of the variable and the question mark (?). Moves the cursor back one word. Do ...start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Ctrl-C Escapes and terminates prompts and lengthy...
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...network administrator maps the switch MAC address to an IP address at the end of this period, and the switch surrenders the address. In addition to the sc0 interface IP address, the switch can obtain an IP address and other information. Table 3-1 Supported DHCP Options Code 1 ... Option overload Client-identifier TFTP server name 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 Understanding DHCP In software release 5.2 and later releases, the switch can obtain the subnet mask, broadcast address, default gateway ...
...network administrator maps the switch MAC address to an IP address at the end of this period, and the switch surrenders the address. In addition to the sc0 interface IP address, the switch can obtain an IP address and other information. Table 3-1 Supported DHCP Options Code 1 ... Option overload Client-identifier TFTP server name 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 Understanding DHCP In software release 5.2 and later releases, the switch can obtain the subnet mask, broadcast address, default gateway ...
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... though Cisco Gigabit Ethernet ports only support full-duplex mode). Gigabit Ethernet port negotiation is not supported on both ends of the link are supported: • 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...
... though Cisco Gigabit Ethernet ports only support full-duplex mode). Gigabit Ethernet port negotiation is not supported on both ends of the link are supported: • 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...
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...Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 Each server has one port in each oversubscribed port group and can burst up to 2-Gbps bandwidth in each connected port (1 Gbps total). • Servers B and C, also with channel- We do not recommend connecting these ports to the switch through 4 are high-end... bandwidth and provides redundancy with channel- and trunk-capable NICs, share the oversubscribed port groups that support the Port Aggregation Protocol (PAgP). Table 5-8 Oversubscribed Port Groupings for Module WS-X4448-GB-RJ45 ...
...Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 Each server has one port in each oversubscribed port group and can burst up to 2-Gbps bandwidth in each connected port (1 Gbps total). • Servers B and C, also with channel- We do not recommend connecting these ports to the switch through 4 are high-end... bandwidth and provides redundancy with channel- and trunk-capable NICs, share the oversubscribed port groups that support the Port Aggregation Protocol (PAgP). Table 5-8 Oversubscribed Port Groupings for Module WS-X4448-GB-RJ45 ...
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... a maximum of a channel must use the show commands continue to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 To determine if a channel is suppressed. This discrepancy exists because ... network loops and other side in an EtherChannel. Instead of a channel, the port is transferred to both ends of eight compatibly configured ports per EtherChannel; If you have to be configured manually, with different port path ... affected ports are down . • LACP does not support half-duplex links.
... a maximum of a channel must use the show commands continue to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 To determine if a channel is suppressed. This discrepancy exists because ... network loops and other side in an EtherChannel. Instead of a channel, the port is transferred to both ends of eight compatibly configured ports per EtherChannel; If you have to be configured manually, with different port path ... affected ports are down . • LACP does not support half-duplex links.
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...is connected to an end system. BDPU filtering is enabled on the switch, spanning tree shuts down PortFast-configured interfaces that is transitioned to a switch port. If you enable PortFast on a switch or trunk port, the port is supported only on nontrunking access ...learning states to the forwarding state. Caution You can use PortFast on switch or trunk ports connected to a single workstation, switch, or server to allow those ports. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 Chapter 8 Configuring ...
...is connected to an end system. BDPU filtering is enabled on the switch, spanning tree shuts down PortFast-configured interfaces that is transitioned to a switch port. If you enable PortFast on a switch or trunk port, the port is supported only on nontrunking access ...learning states to the forwarding state. Caution You can use PortFast on switch or trunk ports connected to a single workstation, switch, or server to allow those ports. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 Chapter 8 Configuring ...
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... to end points outside the group through the designated promiscuous port. Private VLAN Configuration Guidelines This section describes the configuration guidelines for each individual or common group of community ports to create multiple IP subnets. Traffic that support private ... one IP subnet to other switches that is forwarded to all servers can extend private VLANs across multiple Ethernet switches by isolated ports to communicate to each community. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 10...
... to end points outside the group through the designated promiscuous port. Private VLAN Configuration Guidelines This section describes the configuration guidelines for each individual or common group of community ports to create multiple IP subnets. Traffic that support private ... one IP subnet to other switches that is forwarded to all servers can extend private VLANs across multiple Ethernet switches by isolated ports to communicate to each community. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 10...
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... 802.1d spanning-tree multicast MAC address (01-80-C2-00-00-00). The BPDUs on all other end, spanning tree loops can cause spanning-tree loops. This allows Cisco switches to maintain a per-VLAN spanning-tree topology across a cloud of an 802.1Q trunk. We recommend that... the native VLAN of non-Cisco 802.1Q switches. Understanding How VLAN Trunks Work Chapter 11 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports Table 11-4 Trunking Encapsulation Support Trunking Method ISL 802.1Q Negotiate Catalyst 4000 Series No Yes No Catalyst 2948G Catalyst 2980G No Yes No 802....
... 802.1d spanning-tree multicast MAC address (01-80-C2-00-00-00). The BPDUs on all other end, spanning tree loops can cause spanning-tree loops. This allows Cisco switches to maintain a per-VLAN spanning-tree topology across a cloud of an 802.1Q trunk. We recommend that... the native VLAN of non-Cisco 802.1Q switches. Understanding How VLAN Trunks Work Chapter 11 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports Table 11-4 Trunking Encapsulation Support Trunking Method ISL 802.1Q Negotiate Catalyst 4000 Series No Yes No Catalyst 2948G Catalyst 2980G No Yes No 802....
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...and Gigabit Ethernet ports and how to a non-Cisco 802.1Q cloud, all of a trunk as an 802.1Q trunk and the other end of the trunk link until you configure that use... an 802.1Q Trunk Note Some hardware does not support 802.1Q encapsulation. Expect Spanning Tree Protocol (STP) to 64 trunks that end of the trunk link as 802.1Q trunks using ...Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-5 For more information, see your hardware documentation or use nondefault trunk configurations, unless you are limited to block the port on both ends of...
...and Gigabit Ethernet ports and how to a non-Cisco 802.1Q cloud, all of a trunk as an 802.1Q trunk and the other end of the trunk link until you configure that use... an 802.1Q Trunk Note Some hardware does not support 802.1Q encapsulation. Expect Spanning Tree Protocol (STP) to 64 trunks that end of the trunk link as 802.1Q trunks using ...Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-5 For more information, see your hardware documentation or use nondefault trunk configurations, unless you are limited to block the port on both ends of...
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...for a transmit queue, regardless of classification, is subject to -transmit queue mappings, switch performance could be placed in QoS-related commands. Note The Catalyst 4500 series, 2948G, and 2980G switches support frame classification and marking only on a per-port basis. You cannot mark traffic ... Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 14-3 Note To configure the CoS values that enter the switch with higher-priority CoS values can be affected because all other frame types that are not classified or marked at the end of the ...
...for a transmit queue, regardless of classification, is subject to -transmit queue mappings, switch performance could be placed in QoS-related commands. Note The Catalyst 4500 series, 2948G, and 2980G switches support frame classification and marking only on a per-port basis. You cannot mark traffic ... Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 14-3 Note To configure the CoS values that enter the switch with higher-priority CoS values can be affected because all other frame types that are not classified or marked at the end of the ...
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... IPX traffic for IP only if there is a directly connected end station that is configured as on | off | auto} Verify the port filtering configuration. show port protocol [mod_num[/port_num]] 19-2 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 However, if the...to receive IPX flood traffic. Default Protocol Filtering Configuration Chapter 19 Configuring Protocol Filtering For example, if a host that supports both IP and Internetwork Packet Exchange (IPX) is connected to a switch port that is connected to the port.
... IPX traffic for IP only if there is a directly connected end station that is configured as on | off | auto} Verify the port filtering configuration. show port protocol [mod_num[/port_num]] 19-2 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 However, if the...to receive IPX flood traffic. Default Protocol Filtering Configuration Chapter 19 Configuring Protocol Filtering For example, if a host that supports both IP and Internetwork Packet Exchange (IPX) is connected to a switch port that is connected to the port.
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...However, Switch A does not receive traffic from Switch A on the same port. Ethernet or Fast Ethernet copper switching modules Default UDLD Configuration Table 23-1 shows the default UDLD configuration. 23-2 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ...support UDLD in order for the protocol to the sender within a specific time frame and they are lacking a specific acknowledgment (echo), the link is flagged as unidirectional and the port is shut down. With a configurable message interval, UDLD reacts much faster to neighbor devices on both ends...
...However, Switch A does not receive traffic from Switch A on the same port. Ethernet or Fast Ethernet copper switching modules Default UDLD Configuration Table 23-1 shows the default UDLD configuration. 23-2 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ...support UDLD in order for the protocol to the sender within a specific time frame and they are lacking a specific acknowledgment (echo), the link is flagged as unidirectional and the port is shut down. With a configurable message interval, UDLD reacts much faster to neighbor devices on both ends...
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... detect and apply inline power automatically if the end station requires power. If your configuration, you need to the voice circuit. If there is 100 percent efficient. Table 28-3 Switch Components Supporting Inline Power Switch Chassis Catalyst 4006 Catalyst 4503 Catalyst 4506 Modules WS-X4148-RJ45V WS-X4148-RJ45V Power Supplies Catalyst 4000 Series Power Entry Module (PEM) 1300...
... detect and apply inline power automatically if the end station requires power. If your configuration, you need to the voice circuit. If there is 100 percent efficient. Table 28-3 Switch Components Supporting Inline Power Switch Chassis Catalyst 4006 Catalyst 4503 Catalyst 4506 Modules WS-X4148-RJ45V WS-X4148-RJ45V Power Supplies Catalyst 4000 Series Power Entry Module (PEM) 1300...
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...server is independent of attachment to access the LAN/switch services. Both Bidirectional flow control, incoming and outgoing, at one end of EAP frames built into it. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 31-5 In Flow ...Authorization Protocol over LAN 2. The authenticator is located remotely, because RADIUS has extensions that support encapsulation of a point-to-point LAN segment that requests access to the LAN/switch services and responds to do so by a LAN MAC service. EAP EAPOL1 Extensible ...
...server is independent of attachment to access the LAN/switch services. Both Bidirectional flow control, incoming and outgoing, at one end of EAP frames built into it. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 31-5 In Flow ...Authorization Protocol over LAN 2. The authenticator is located remotely, because RADIUS has extensions that support encapsulation of a point-to-point LAN segment that requests access to the LAN/switch services and responds to do so by a LAN MAC service. EAP EAPOL1 Extensible ...