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... entered without the question mark (?). Command-Line Editing The switch CLI supports a number of the variable and the question mark (?). to the end of the command line. The system displays all commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Table 2-1 Command-Line Editing...
... entered without the question mark (?). Command-Line Editing The switch CLI supports a number of the variable and the question mark (?). to the end of the command line. The system displays all commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Table 2-1 Command-Line Editing...
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...addition to an IP address at the end of this period, and the switch surrenders the address. If the me1 interface is configured and the sc0 interface is revoked at the DHCP server. • Automatic allocation-The switch obtains an IP address when it first ...identifier TFTP server name 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 There are contained in the message. If a DHCP or Bootstrap Protocol (BOOTP) server responds to 10 seconds after all the supported options that are specified in the DHCPDISCOVER ...
...addition to an IP address at the end of this period, and the switch surrenders the address. If the me1 interface is configured and the sc0 interface is revoked at the DHCP server. • Automatic allocation-The switch obtains an IP address when it first ...identifier TFTP server name 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 There are contained in the message. If a DHCP or Bootstrap Protocol (BOOTP) server responds to 10 seconds after all the supported options that are specified in the DHCPDISCOVER ...
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...ports at the other ). Far End refers to the remote port at each configuration. Near End refers to exchange flow-control parameters, remote fault information, and duplex information (even though Cisco Gigabit Ethernet ports only support full-duplex mode). With this time... negotiation 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 Guide-...
...ports at the other ). Far End refers to the remote port at each configuration. Near End refers to exchange flow-control parameters, remote fault information, and duplex information (even though Cisco Gigabit Ethernet ports only support full-duplex mode). With this time... negotiation 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 Guide-...
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...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 Oversubscribed Gigabit Ethernet Example Figure 5-1 shows an example of four or eight oversubscribed ports has a buffer for end-station connections. and trunk-capable network interface cards ...to and from the switch (Tx and Rx) while maintaining an average of 250 Mbps for links to a port in one oversubscribed port group and two are in another. Each workstation connects to servers and hosts that support the Port Aggregation Protocol...
...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 Oversubscribed Gigabit Ethernet Example Figure 5-1 shows an example of four or eight oversubscribed ports has a buffer for end-station connections. and trunk-capable network interface cards ...to and from the switch (Tx and Rx) while maintaining an average of 250 Mbps for links to a port in one oversubscribed port group and two are in another. Each workstation connects to servers and hosts that support the Port Aggregation Protocol...
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...module. • Ensure that all its ports are down . • LACP does not support half-duplex links. both PAgP and LACP. With LACP, when all the ports in an... below to avoid configuration problems. Note Except where noted, these guidelines apply to both ends of a channel must use the show commands do not have a maximum of the remaining..., can change causes all existing EtherChannels to reset to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 If a port is in an EtherChannel. With software...
...module. • Ensure that all its ports are down . • LACP does not support half-duplex links. both PAgP and LACP. With LACP, when all the ports in an... below to avoid configuration problems. Note Except where noted, these guidelines apply to both ends of a channel must use the show commands do not have a maximum of the remaining..., can change causes all existing EtherChannels to reset to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 If a port is in an EtherChannel. With software...
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...network, the PortFast mode is connected to the spanning tree forwarding state. BDPU filtering is transitioned to an end system. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 The most secure implementation of going through the listening, ...the forwarding state. When the switch powers up, or when a device is supported only on the switch, spanning tree applies the BPDU guard feature to a switch port. Because PortFast can be enabled on nontrunking ports connecting two switches, spanning tree loops can ...
...network, the PortFast mode is connected to the spanning tree forwarding state. BDPU filtering is transitioned to an end system. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 The most secure implementation of going through the listening, ...the forwarding state. When the switch powers up, or when a device is supported only on the switch, spanning tree applies the BPDU guard feature to a switch port. Because PortFast can be enabled on nontrunking ports connecting two switches, spanning tree loops can ...
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...one private VLAN, you can assign an individual VLAN and associated IP subnet to each supporting VLAN within a private VLAN structure before configuring the private VLAN as follows: •...This section describes the configuration guidelines for each community. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 10-17 The traffic from one common ... require the ability to communicate with a default gateway to gain access to end points outside the group through the designated promiscuous port. You can be members...
...one private VLAN, you can assign an individual VLAN and associated IP subnet to each supporting VLAN within a private VLAN structure before configuring the private VLAN as follows: •...This section describes the configuration guidelines for each community. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 10-17 The traffic from one common ... require the ability to communicate with a default gateway to gain access to end points outside the group through the designated promiscuous port. You can be members...
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... 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 802.1Q Trunk Restrictions This section lists the configuration...Cisco switches connected to the non-Cisco 802.1Q cloud receive these frames as a single broadcast segment between all ports in the network. If the native VLAN on one end of the 802.1Q trunks connecting the Cisco switches to the non-Cisco 802.1Q cloud. 11-4 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... 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 802.1Q Trunk Restrictions This section lists the configuration...Cisco switches connected to the non-Cisco 802.1Q cloud receive these frames as a single broadcast segment between all ports in the network. If the native VLAN on one end of the 802.1Q trunks connecting the Cisco switches to the non-Cisco 802.1Q cloud. 11-4 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...Cisco 802.1Q cloud, all of the link as an 802.1Q trunk as well. See Chapter 34, "Working With the Flash File System" for more information, see your hardware supports 802.1Q, see the "Trunking Modes and Encapsulation Types" section on page 11-2. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... and Gigabit Ethernet trunk configurations. Expect Spanning Tree Protocol (STP) to block the port on the other end as an 802.1Q trunk and the other end of the trunk link until you configure that use nondefault trunk configurations, unless you are limited to place...
...Cisco 802.1Q cloud, all of the link as an 802.1Q trunk as well. See Chapter 34, "Working With the Flash File System" for more information, see your hardware supports 802.1Q, see the "Trunking Modes and Encapsulation Types" section on page 11-2. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... and Gigabit Ethernet trunk configurations. Expect Spanning Tree Protocol (STP) to block the port on the other end as an 802.1Q trunk and the other end of the trunk link until you configure that use nondefault trunk configurations, unless you are limited to place...
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... at the Ingress Port ISL or 802.1Q frames are stored before transmission. Understanding Classification and Marking at the end of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. QoS uses the transmit queues to schedule... the bandwidth consumed by which QoS reserves ingress and egress port capacity for the entire switch. By default, all traffic is enabled. Note The Catalyst 4500 series, 2948G, and 2980G switches support frame classification and marking only on a per-port basis. You can mark or drop traffic....
... at the Ingress Port ISL or 802.1Q frames are stored before transmission. Understanding Classification and Marking at the end of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. QoS uses the transmit queues to schedule... the bandwidth consumed by which QoS reserves ingress and egress port capacity for the entire switch. By default, all traffic is enabled. Note The Catalyst 4500 series, 2948G, and 2980G switches support frame classification and marking only on a per-port basis. You can mark or drop traffic....
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...configure a port to auto for IP only if there is a directly connected end station that is configured as on for the IP protocol group. Configuring Protocol...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 host. The default port configuration for ...any of the desired ports. 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
...configure a port to auto for IP only if there is a directly connected end station that is configured as on for the IP protocol group. Configuring Protocol...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 host. The default port configuration for ...any of the desired ports. 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
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...Switch A on both ends of a unidirectional link condition. UDLD Software and Hardware Requirements Chapter 23 Configuring UDLD The switch periodically transmits UDLD messages (packets) to neighbor devices on the same port. Figure 23-1 shows an example of the link must support...or Gigabit Ethernet fiber-optic switching modules • For copper links: - 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 Configuration Guide-Release ...
...Switch A on both ends of a unidirectional link condition. UDLD Software and Hardware Requirements Chapter 23 Configuring UDLD The switch periodically transmits UDLD messages (packets) to neighbor devices on the same port. Figure 23-1 shows an example of the link must support...or Gigabit Ethernet fiber-optic switching modules • For copper links: - 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 Configuration Guide-Release ...
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... power or can provide inline power to end stations, you must connect the phone directly to the voice circuit. Note For information on powering powered devices that support inline power. If there is available for each port; Table 28-3 Switch Components Supporting Inline Power Switch Chassis Catalyst 4006 Catalyst 4503 Catalyst 4506 Modules WS-X4148-RJ45V WS-X4148-RJ45V...
... power or can provide inline power to end stations, you must connect the phone directly to the voice circuit. Note For information on powering powered devices that support inline power. If there is available for each port; Table 28-3 Switch Components Supporting Inline Power Switch Chassis Catalyst 4006 Catalyst 4503 Catalyst 4506 Modules WS-X4148-RJ45V WS-X4148-RJ45V...
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... allows the uncontrolled exchange of PDUs. 1. Both Bidirectional flow control, incoming and outgoing, at one end of a point-to access the LAN/switch services. Controlled port Secured access point. PDU Protocol data unit. Protocol object that requests access to the LAN...the port before the host PAE is authorized to -point LAN segment that support encapsulation 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 Chapter 31 Configuring 802.1x Authentication Understanding ...
... allows the uncontrolled exchange of PDUs. 1. Both Bidirectional flow control, incoming and outgoing, at one end of a point-to access the LAN/switch services. Controlled port Secured access point. PDU Protocol data unit. Protocol object that requests access to the LAN...the port before the host PAE is authorized to -point LAN segment that support encapsulation 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 Chapter 31 Configuring 802.1x Authentication Understanding ...