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...switch commands. to the end of the current command line. Table 2-1 lists the keystrokes you can use the partial-keyword-lookup function, enter ? Moves the cursor back one character. Ctrl-E Jumps to display a list of commands that begin with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...Ctrl-K Deletes from the cursor to the end of command-line editing keystrokes. Enters previous command line from the history buffer. Esc F Moves the cursor forward one word. Command-Line Editing The switch CLI supports a number of the word. Ctrl-U;...
...switch commands. to the end of the current command line. Table 2-1 lists the keystrokes you can use the partial-keyword-lookup function, enter ? Moves the cursor back one character. Ctrl-E Jumps to display a list of commands that begin with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...Ctrl-K Deletes from the cursor to the end of command-line editing keystrokes. Enters previous command line from the history buffer. Esc F Moves the cursor forward one word. Command-Line Editing The switch CLI supports a number of the word. Ctrl-U;...
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... server responds to the sc0 interface IP address, the switch can obtain an IP address and other information. Table 3-1 shows the supported DHCP options. In addition to the request, the switch takes appropriate action. Table 3-1 Supported DHCP Options Code 1 2 3 6 12 15 28...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 If a DHCPOFFER message is received from the DHCP server: • Manual allocation-The network administrator maps the switch MAC address to an IP address at the end of the switch ports are online. The switch...
... server responds to the sc0 interface IP address, the switch can obtain an IP address and other information. Table 3-1 shows the supported DHCP options. In addition to the request, the switch takes appropriate action. Table 3-1 Supported DHCP Options Code 1 2 3 6 12 15 28...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 If a DHCPOFFER message is received from the DHCP server: • Manual allocation-The network administrator maps the switch MAC address to an IP address at the end of the switch ports are online. The switch...
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... provide a network-backbone 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 8.1 5-3 The ...and duplex mode is used 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 default.
... provide a network-backbone 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 8.1 5-3 The ...and duplex mode is used 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 default.
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...port group and can burst up to servers and hosts that support the Port Aggregation Protocol (PAgP). You can use the full...end workstations. and trunk-capable network interface cards (NICs), connects to a port in each direction. • The network backbone connection is through a two-port Gigabit EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... switching module (WS-X4418-GB) connecting multiple network servers and high-end workstations to switches or routers. Each workstation connects to the switch ...
...port group and can burst up to servers and hosts that support the Port Aggregation Protocol (PAgP). You can use the full...end workstations. and trunk-capable network interface cards (NICs), connects to a port in each direction. • The network backbone connection is through a two-port Gigabit EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches... switching module (WS-X4418-GB) connecting multiple network servers and high-end workstations to switches or routers. Each workstation connects to the switch ...
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...display the channel even though all its ports are down . • LACP does not support half-duplex links. the show spantree command. The port is suppressed. Instead of an EtherChannel..."connected" using 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 When all the ports in an EtherChannel ... EtherChannel, it is treated as "not connected" using the show port command to both ends of eight compatibly configured ports per EtherChannel; both PAgP and LACP. If you disable ...
...display the channel even though all its ports are down . • LACP does not support half-duplex links. the show spantree command. The port is suppressed. Instead of an EtherChannel..."connected" using 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 When all the ports in an EtherChannel ... EtherChannel, it is treated as "not connected" using the show port command to both ends of eight compatibly configured ports per EtherChannel; both PAgP and LACP. If you disable ...
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...tree sends BPDUs from occurring in a network, the PortFast mode is supported only on a switch or trunk port, the port is enabled. When the Forward Delay ...Understanding How PortFast BPDU Guard Works You can use PortFast to connect a single end station or a switch port to invalid configurations because the administrator must manually put the interface back in ... that are still being transmitted and received on the switch, spanning tree places ports in service. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 When...
...tree sends BPDUs from occurring in a network, the PortFast mode is supported only on a switch or trunk port, the port is enabled. When the Forward Delay ...Understanding How PortFast BPDU Guard Works You can use PortFast to connect a single end station or a switch port to invalid configurations because the administrator must manually put the interface back in ... that are still being transmitted and received on the switch, spanning tree places ports in service. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 When...
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...all servers can assign an individual VLAN and associated IP subnet to each individual or common group of community ports to end points outside the group through the designated promiscuous port. You must bind them together and associate them to an isolated...supporting VLAN within a private VLAN structure before configuring the private VLAN as a primary VLAN, and a second VLAN is blocked on multiple subnet and broadcast addresses. If you want to use private VLAN communities, you must define each community. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
...all servers can assign an individual VLAN and associated IP subnet to each individual or common group of community ports to end points outside the group through the designated promiscuous port. You must bind them together and associate them to an isolated...supporting VLAN within a private VLAN structure before configuring the private VLAN as a primary VLAN, and a second VLAN is blocked on multiple subnet and broadcast addresses. If you want to use private VLAN communities, you must define each community. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If this is the same on all VLANs. The BPDUs on all of the trunk, non-Cisco switches do not recognize these flooded BPDUs. The non-Cisco 802.1Q cloud separating the Cisco switches is treated as BPDUs and flood them on all other end...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...
...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If this is the same on all VLANs. The BPDUs on all of the trunk, non-Cisco switches do not recognize these flooded BPDUs. The non-Cisco 802.1Q cloud separating the Cisco switches is treated as BPDUs and flood them on all other end...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...
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... as well. To determine whether 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 Software Configuration Guide-Release 8.1 11-5 You cannot connect Cisco switches to define the allowed VLAN range on the other end as an ISL trunk or a nontrunk...
... as well. To determine whether 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 Software Configuration Guide-Release 8.1 11-5 You cannot connect Cisco switches to define the allowed VLAN range on the other end as an ISL trunk or a nontrunk...
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... end of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. Note The Catalyst 4500 series, 2948G, and 2980G switches support frame classification and marking only on page 14-6. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches ...is assigned to queue 1. You cannot mark traffic on CoS values. • Congestion avoidance is the process by which the switch limits the bandwidth consumed by which QoS reserves ingress and egress port capacity for a transmit queue, regardless of traffic. All ...
... end of network traffic from the switch through a supported ingress port, QoS accepts the User Priority bits as the CoS value. Note The Catalyst 4500 series, 2948G, and 2980G switches support frame classification and marking only on page 14-6. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches ...is assigned to queue 1. You cannot mark traffic on CoS values. • Congestion avoidance is the process by which the switch limits the bandwidth consumed by which QoS reserves ingress and egress port capacity for a transmit queue, regardless of traffic. All ...
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... Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If the host does not send any IPX flood traffic to the host. The default port configuration for IP only if there is a directly connected end station that is configured as on Ethernet, Fast...is auto. 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 ...
... Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If the host does not send any IPX flood traffic to the host. The default port configuration for IP only if there is a directly connected end station that is configured as on Ethernet, Fast...is auto. 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 ...
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... configuration. 23-2 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Previously, the message interval was fixed at 60 seconds. Switch B successfully receives traffic from Switch B on the port. However, Switch A does not receive traffic from Switch A on the same port. Figure 23-1 shows an example of the link must support UDLD in...
... configuration. 23-2 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Previously, the message interval was fixed at 60 seconds. Switch B successfully receives traffic from Switch B on the port. However, Switch A does not receive traffic from Switch A on the same port. Figure 23-1 shows an example of the link must support UDLD in...
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...circuit. Table 28-3 lists the switch components that are connected to other Catalyst switching modules, refer to the voice circuit. 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 (... Inline Power Works The Catalyst 4006 switch and the Catalyst 4500 series switches can sense if a powered device is connected to the switch that can provide inline power to end stations, you need to the switch port, the switch cannot power the second ...
...circuit. Table 28-3 lists the switch components that are connected to other Catalyst switching modules, refer to the voice circuit. 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 (... Inline Power Works The Catalyst 4006 switch and the Catalyst 4500 series switches can sense if a powered device is connected to the switch that can provide inline power to end stations, you need to the switch port, the switch cannot power the second ...
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... authentication server are dependent on incoming frames in an unauthorized switch port. Authentication server Entity that enforces host authentication. Both Bidirectional flow control, incoming and outgoing, at one end of a point-to-point LAN segment that provides the authentication... port Secured access point. EAP EAPOL1 Extensible Authentication Protocol. Protocol object 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 It checks the credentials of the port...
... authentication server are dependent on incoming frames in an unauthorized switch port. Authentication server Entity that enforces host authentication. Both Bidirectional flow control, incoming and outgoing, at one end of a point-to-point LAN segment that provides the authentication... port Secured access point. EAP EAPOL1 Extensible Authentication Protocol. Protocol object 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 It checks the credentials of the port...