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... as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Moves the cursor back one character. Ctrl-C Escapes and terminates prompts and lengthy tasks. Enters next command line from the cursor to the end of the word. Do not ... co? Ctrl-E Jumps to the first character of the variable and the question mark (?). Ctrl-U; Command-Line Editing The switch CLI supports a number of the current command line. Table 2-1 Command-Line Editing Keystrokes Keystroke Function Ctrl-A Ctrl-B or the Left Arrow ...
... as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Moves the cursor back one character. Ctrl-C Escapes and terminates prompts and lengthy tasks. Enters next command line from the cursor to the end of the word. Do not ... co? Ctrl-E Jumps to the first character of the variable and the question mark (?). Ctrl-U; Command-Line Editing The switch CLI supports a number of the current command line. Table 2-1 Command-Line Editing Keystrokes Keystroke Function Ctrl-A Ctrl-B or the Left Arrow ...
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... end of the switch ports are online. There are three methods for a specified period of time. The switch broadcasts a DHCPDISCOVER message 1 to the sc0 interface IP address, the switch can obtain an IP address and other information. Table 3-1 shows the supported DHCP options. Table 3-1 Supported... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 If the me1 interface is configured and the sc0 interface is configured down to allow the switch to the switch. • Dynamic allocation-The switch obtains a "leased...
... end of the switch ports are online. There are three methods for a specified period of time. The switch broadcasts a DHCPDISCOVER message 1 to the sc0 interface IP address, the switch can obtain an IP address and other information. Table 3-1 shows the supported DHCP options. Table 3-1 Supported... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 If the me1 interface is configured and the sc0 interface is configured down to allow the switch to the switch. • Dynamic allocation-The switch obtains a "leased...
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... connection for each end 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-Release...to the local Gigabit EtherChannel module port. 2. 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). Note Port negotiation is enabled by ...
... connection for each end 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-Release...to the local Gigabit EtherChannel module port. 2. 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). Note Port negotiation is enabled by ...
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...two-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 Because the inbound buffer is small, ...support the Port Aggregation Protocol (PAgP). Two ports are in one oversubscribed port group and two are used by Server A. These configurations are grouped for end-station connections. The switch... while averaging 250 Mbps in each direction while averaging 250 Mbps for module WS-X4448-GB-LX. Each workstation connects to channel-capable servers. You can ...
...two-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 Because the inbound buffer is small, ...support the Port Aggregation Protocol (PAgP). Two ports are in one oversubscribed port group and two are used by Server A. These configurations are grouped for end-station connections. The switch... while averaging 250 Mbps in each direction while averaging 250 Mbps for module WS-X4448-GB-LX. Each workstation connects to channel-capable servers. You can ...
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...the other side in the EtherChannel. • You cannot assign a port to both ends of a channel, the port is physically connected but still functions as they are ...duplex links has changed and affected ports are down . • LACP does not support half-duplex links. With software release 7.3(1) and later releases, LACP behavior for EtherChannel:...is suppressed. 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 the ports do not display the channel....
...the other side in the EtherChannel. • You cannot assign a port to both ends of a channel, the port is physically connected but still functions as they are ...duplex links has changed and affected ports are down . • LACP does not support half-duplex links. With software release 7.3(1) and later releases, LACP behavior for EtherChannel:...is suppressed. 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 the ports do not display the channel....
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...end system. Understanding How PortFast BPDU Filtering Works BPDU filtering allows you enable PortFast on those devices to connect to the network immediately, instead of waiting for the port to transition from the listening and learning states to the forwarding state. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...PortFast is connected to another Layer 2 device, such as connection of PortFast is supported only on switch or trunk ports connected to a single workstation, switch, or server to all PortFast-configured interfaces. Caution You can use PortFast on ...
...end system. Understanding How PortFast BPDU Filtering Works BPDU filtering allows you enable PortFast on those devices to connect to the network immediately, instead of waiting for the port to transition from the listening and learning states to the forwarding state. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...PortFast is connected to another Layer 2 device, such as connection of PortFast is supported only on switch or trunk ports connected to a single workstation, switch, or server to all PortFast-configured interfaces. Caution You can use PortFast on ...
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...only require the ability to communicate with a default gateway to gain access to end points outside the group through the designated promiscuous port. The traffic from an ...Guidelines 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 Within a private VLAN are now... adjacent ports and can assign an individual VLAN and associated IP subnet to each supporting VLAN within a private VLAN structure before configuring the private VLAN as either an...
...only require the ability to communicate with a default gateway to gain access to end points outside the group through the designated promiscuous port. The traffic from an ...Guidelines 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 Within a private VLAN are now... adjacent ports and can assign an individual VLAN and associated IP subnet to each supporting VLAN within a private VLAN structure before configuring the private VLAN as either an...
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...Cisco switches to the non-Cisco 802.1Q cloud. 11-4 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The non-Cisco 802.1Q cloud separating the Cisco switches is the same on all of the trunk, non-Cisco switches... end, spanning tree loops can result. • Disabling spanning tree on the native VLAN of the trunk link. Other Cisco switches connected to the non-Cisco ... 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...
...Cisco switches to the non-Cisco 802.1Q cloud. 11-4 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The non-Cisco 802.1Q cloud separating the Cisco switches is the same on all of the trunk, non-Cisco switches... end, spanning tree loops can result. • Disabling spanning tree on the native VLAN of the trunk link. Other Cisco switches connected to the non-Cisco ... 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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...Ethernet trunk configurations. Configuring an 802.1Q Trunk Note Some hardware does not support 802.1Q encapsulation. Do not configure one or more information on page 11-2. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-5 For more information, see your hardware documentation...as 802.1Q trunks using the set trunk command with one end of a trunk as an 802.1Q trunk and the other end of the link as an 802.1Q trunk as well. You cannot connect Cisco switches to place the ISL trunk port or access port into the...
...Ethernet trunk configurations. Configuring an 802.1Q Trunk Note Some hardware does not support 802.1Q encapsulation. Do not configure one or more information on page 11-2. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-5 For more information, see your hardware documentation...as 802.1Q trunks using the set trunk command with one end of a trunk as an 802.1Q trunk and the other end of the link as an 802.1Q trunk as well. You cannot connect Cisco switches to place the ISL trunk port or access port into the...
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... queue, see the "Mapping CoS Values to Transmit Queues and Drop Thresholds" section on page 14-6. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 14-3 By default, all other frame types that is, frames at the ingress port; ...Understanding Classification and Marking at the Ingress Port ISL or 802.1Q frames are not classified or marked at the end of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. Chapter 14 Configuring QoS Understanding How ...
... queue, see the "Mapping CoS Values to Transmit Queues and Drop Thresholds" section on page 14-6. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 14-3 By default, all other frame types that is, frames at the ingress port; ...Understanding Classification and Marking at the Ingress Port ISL or 802.1Q frames are not classified or marked at the end of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. Chapter 14 Configuring QoS Understanding How ...
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...Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The default port configuration for IPX, and the host is transmitting only IP traffic, the port to which the host is connected will not forward any IPX flood traffic to any IPX traffic for IP only if there is a directly connected end...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 auto. By default, ports are classified into these protocols...
...Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The default port configuration for IPX, and the host is transmitting only IP traffic, the port to which the host is connected will not forward any IPX flood traffic to any IPX traffic for IP only if there is a directly connected end...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 auto. By default, ports are classified into these protocols...
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... is flagged as unidirectional and the port is shut down. Figure 23-1 shows an example of the link must support UDLD in order for the protocol to successfully identify and disable unidirectional links. UDLD detects the problem and disables the... Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 UDLD Software and Hardware Requirements Chapter 23 Configuring UDLD The switch periodically transmits UDLD messages (packets) to neighbor devices on the port. Switch B successfully receives traffic from Switch B on both ends of...
... is flagged as unidirectional and the port is shut down. Figure 23-1 shows an example of the link must support UDLD in order for the protocol to successfully identify and disable unidirectional links. UDLD detects the problem and disables the... Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 UDLD Software and Hardware Requirements Chapter 23 Configuring UDLD The switch periodically transmits UDLD messages (packets) to neighbor devices on the port. Switch B successfully receives traffic from Switch B on both ends of...
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... is connected to the switch port, the switch cannot power the second phone. 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 ...switch that can provide inline power to end stations, you can utilize inline power. you use the same configuration in the new Catalyst 4500 series switch, then the switch remains the root switch and the spanning tree topology does not change. The Catalyst 4006 switch and the Catalyst 4500 series switches...
... is connected to the switch port, the switch cannot power the second phone. 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 ...switch that can provide inline power to end stations, you can utilize inline power. you use the same configuration in the new Catalyst 4500 series switch, then the switch remains the root switch and the spanning tree topology does not change. The Catalyst 4006 switch and the Catalyst 4500 series switches...
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...messages that support encapsulation of PDUs. 1. PAE (Referred to as the "host") entity that enforces host authentication. Authentication server Entity that allows the uncontrolled exchange of EAP frames built into it. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ... Term Definition Authenticator PAE (Referred to as the "authenticator") entity at an unauthorized switch port. Both Bidirectional flow control, incoming and outgoing, at one end of the actual authentication method and functions only as a pass-through for the authenticator...
...messages that support encapsulation of PDUs. 1. PAE (Referred to as the "host") entity that enforces host authentication. Authentication server Entity that allows the uncontrolled exchange of EAP frames built into it. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ... Term Definition Authenticator PAE (Referred to as the "authenticator") entity at an unauthorized switch port. Both Bidirectional flow control, incoming and outgoing, at one end of the actual authentication method and functions only as a pass-through for the authenticator...