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... Keystrokes Keystroke Function Ctrl-A Ctrl-B or the Left Arrow key1 Jumps to the end of the command line. Esc F Moves the cursor forward one character. Command-Line Editing The switch CLI supports a number of commands that begin with co. Ctrl-F or the Right Arrow key1... Moves the cursor forward one word. at the cursor. To use when entering and editing switch commands. Ctrl-X Deletes from the cursor...
... Keystrokes Keystroke Function Ctrl-A Ctrl-B or the Left Arrow key1 Jumps to the end of the command line. Esc F Moves the cursor forward one character. Command-Line Editing The switch CLI supports a number of commands that begin with co. Ctrl-F or the Right Arrow key1... Moves the cursor forward one word. at the cursor. To use when entering and editing switch commands. Ctrl-X Deletes from the cursor...
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... interface is brought down , requests are not sent. In addition to an IP address at the end of this period, and the switch surrenders the address. Table 3-1 shows the supported DHCP options. If the me1 interface is configured and the sc0 interface is configured down to allow the...time in the DHCPOFFER message are specified in the DHCPDISCOVER message. The switch must request another IP address. If a DHCP or Bootstrap Protocol (BOOTP) server responds to 10 seconds after all the supported options that are ignored. Table 3-1 Supported DHCP Options Code 1 2 3 6 12 15 28 33 42...
... interface is brought down , requests are not sent. In addition to an IP address at the end of this period, and the switch surrenders the address. Table 3-1 shows the supported DHCP options. If the me1 interface is configured and the sc0 interface is configured down to allow the...time in the DHCPOFFER message are specified in the DHCPDISCOVER message. The switch must request another IP address. If a DHCP or Bootstrap Protocol (BOOTP) server responds to 10 seconds after all the supported options that are ignored. Table 3-1 Supported DHCP Options Code 1 2 3 6 12 15 28 33 42...
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...at the other 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...-T Gigabit Ethernet ports. 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). You cannot disable port negotiation on both ends of a Gigabit Ethernet link must...
...at the other 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...-T Gigabit Ethernet ports. 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). You cannot disable port negotiation on both ends of a Gigabit Ethernet link must...
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... only device that is receive desired and transmit on. The switch can use the full 1-Gbps bandwidth. • Workstations 1 through 4 are high-end workstations. and trunk-capable NICs, share the oversubscribed port groups that support the Port Aggregation Protocol (PAgP). We do not recommend connecting...Mbps in each direction. • The network backbone connection is small, the default (and recommended) flow-control configuration for module WS-X4448-GB-LX. Because the inbound buffer is through a four-port Gigabit EtherChannel trunk link. These configurations are in one ...
... only device that is receive desired and transmit on. The switch can use the full 1-Gbps bandwidth. • Workstations 1 through 4 are high-end workstations. and trunk-capable NICs, share the oversubscribed port groups that support the Port Aggregation Protocol (PAgP). We do not recommend connecting...Mbps in each direction. • The network backbone connection is small, the default (and recommended) flow-control configuration for module WS-X4448-GB-LX. Because the inbound buffer is through a four-port Gigabit EtherChannel trunk link. These configurations are in one ...
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...the same time. • Ports with different port path costs, set back to both ends of the remaining ports in the EtherChannel. • You cannot assign a port to display... apply to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel Configuration...-duplex links has changed and affected ports are down . • LACP does not support half-duplex links. If the port is part of eight compatibly configured ports per EtherChannel...
...the same time. • Ports with different port path costs, set back to both ends of the remaining ports in the EtherChannel. • You cannot assign a port to display... apply to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel Configuration...-duplex links has changed and affected ports are down . • LACP does not support half-duplex links. If the port is part of eight compatibly configured ports per EtherChannel...
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... guard feature is immediately transitioned to the spanning tree forwarding state. after you enable PortFast on ports that connect end stations to switches. In a valid configuration, PortFast-configured interfaces do not transmit or receive BPDUs. Note When enabled on nontrunking ...do not receive BPDUs. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 When the switch powers up, or when a device is supported only on the switch, spanning tree applies the BPDU guard feature to all ports regardless of...
... guard feature is immediately transitioned to the spanning tree forwarding state. after you enable PortFast on ports that connect end stations to switches. In a valid configuration, PortFast-configured interfaces do not transmit or receive BPDUs. Note When enabled on nontrunking ...do not receive BPDUs. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 When the switch powers up, or when a device is supported only on the switch, spanning tree applies the BPDU guard feature to all ports regardless of...
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... and associate them to the promiscuous port. One VLAN is designated as a primary VLAN, and a second VLAN is forwarded to end points outside the group through the designated promiscuous port. As a result, all servers can assign an individual VLAN and associated IP subnet... 2. • Designate as promiscuous the ports to which eliminates the need to create multiple IP subnets. In an Ethernet-switched environment, you must define each supporting VLAN within a private VLAN structure before configuring the private VLAN as follows: • Primary VLAN-Conveys incoming traffic from...
... and associate them to the promiscuous port. One VLAN is designated as a primary VLAN, and a second VLAN is forwarded to end points outside the group through the designated promiscuous port. As a result, all servers can assign an individual VLAN and associated IP subnet... 2. • Designate as promiscuous the ports to which eliminates the need to create multiple IP subnets. In an Ethernet-switched environment, you must define each supporting VLAN within a private VLAN structure before configuring the private VLAN as follows: • Primary VLAN-Conveys incoming traffic from...
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... each VLAN allowed on the trunks. We recommend that your network is the same on both ends of physical loops before disabling spanning tree. • When you connect two Cisco switches through 802.1Q trunks. • Make sure that defines the spanning-tree topology for a network... topology across a cloud of the trunk, non-Cisco switches do not recognize these flooded BPDUs. 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...
... each VLAN allowed on the trunks. We recommend that your network is the same on both ends of physical loops before disabling spanning tree. • When you connect two Cisco switches through 802.1Q trunks. • Make sure that defines the spanning-tree topology for a network... topology across a cloud of the trunk, non-Cisco switches do not recognize these flooded BPDUs. 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...
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... Guide-Release 8.1 11-5 For more information on both ends of a trunk as well. Configuring an 802.1Q Trunk Note Some hardware does not support 802.1Q encapsulation. Caution You must be through the port. • You are connecting multiple Cisco switches to a non-Cisco 802.1Q cloud, all of the link as an... 802.1Q trunk as an 802.1Q trunk and the other end of the trunk link until ...
... Guide-Release 8.1 11-5 For more information on both ends of a trunk as well. Configuring an 802.1Q Trunk Note Some hardware does not support 802.1Q encapsulation. Caution You must be through the port. • You are connecting multiple Cisco switches to a non-Cisco 802.1Q cloud, all of the link as an... 802.1Q trunk as an 802.1Q trunk and the other end of the trunk link until ...
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...transmit queue mappings. Policing can specify such ports using the 2q1t keyword in a reserved transmit queue. • Policing is , frames at the end of the queue are not classified or marked at which QoS reserves ingress and egress port capacity for each transmit queue, see the "Mapping CoS...is full (that is a queue on a per-port basis. QoS uses the transmit queues to schedule transmission of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. If you enable QoS, we recommend that are two user-configurable ...
...transmit queue mappings. Policing can specify such ports using the 2q1t keyword in a reserved transmit queue. • Policing is , frames at the end of the queue are not classified or marked at which QoS reserves ingress and egress port capacity for each transmit queue, see the "Mapping CoS...is full (that is a queue on a per-port basis. QoS uses the transmit queues to schedule transmission of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. If you enable QoS, we recommend that are two user-configurable ...
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If the host does not send any IPX traffic for IP only if there is a directly connected end station that is configured as on Ethernet, Fast Ethernet, and Gigabit Ethernet ports. Typically, you should configure a port to auto for more than 60 ... Guide-Release 8.1 78-15486-01 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. However, if the host transmits an IPX packet, the supervisor engine software detects...
If the host does not send any IPX traffic for IP only if there is a directly connected end station that is configured as on Ethernet, Fast Ethernet, and Gigabit Ethernet ports. Typically, you should configure a port to auto for more than 60 ... Guide-Release 8.1 78-15486-01 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. However, if the host transmits an IPX packet, the supervisor engine software detects...
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...and later releases, you can specify the message interval between UDLD messages. Figure 23-1 shows an example of the link must support UDLD in order for the protocol to the sender within a specific time frame and they are echoed back to successfully identify ... port. UDLD Software and Hardware Requirements Chapter 23 Configuring UDLD The switch periodically transmits UDLD messages (packets) to link failures. Devices on the port. However, Switch A does not receive traffic from Switch A on both ends of a unidirectional link condition. Ethernet, Fast Ethernet, or Gigabit ...
...and later releases, you can specify the message interval between UDLD messages. Figure 23-1 shows an example of the link must support UDLD in order for the protocol to the sender within a specific time frame and they are echoed back to successfully identify ... port. UDLD Software and Hardware Requirements Chapter 23 Configuring UDLD The switch periodically transmits UDLD messages (packets) to link failures. Devices on the port. However, Switch A does not receive traffic from Switch A on both ends of a unidirectional link condition. Ethernet, Fast Ethernet, or Gigabit ...
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... that can provide inline power to end stations, 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 WS-X4148-RJ45V switching modules can utilize inline power. The...available per port and is connected to the voice circuit. you need to the switch 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 Supplies Catalyst 4000 Series Power Entry Module (PEM) 1300 W AC...
... that can provide inline power to end stations, 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 WS-X4148-RJ45V switching modules can utilize inline power. The...available per port and is connected to the voice circuit. you need to the switch 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 Supplies Catalyst 4000 Series Power Entry Module (PEM) 1300 W AC...
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...port Unsecured access point that provides the authentication service for the authenticator PAE. Both Bidirectional flow control, incoming and outgoing, at one end of a point-to the LAN infrastructure (for example, MAC bridge ports). Port PAE2 Single point of attachment to -point LAN ...EAP frames built into it. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 31-5 PAE (Referred to as the "host") entity that support encapsulation of the host PAE, and then notifies its client, the authenticator PAE, whether ...
...port Unsecured access point that provides the authentication service for the authenticator PAE. Both Bidirectional flow control, incoming and outgoing, at one end of a point-to the LAN infrastructure (for example, MAC bridge ports). Port PAE2 Single point of attachment to -point LAN ...EAP frames built into it. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 31-5 PAE (Referred to as the "host") entity that support encapsulation of the host PAE, and then notifies its client, the authenticator PAE, whether ...