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Catalyst 2950 Desktop Switch Software Configuration Guide
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Chapter 2 Using the Command-Line Interface
Specifying Ports in Interface Configuration Mode
Specifying Ports in Interface Configuration Mode
To configure a port, you need to specify the interface type, slot, and switch-port number with the
interface configuration command. For example, to configure port 4 on a switch, you enter:
switch(config)#interface fa 0/4
To configure port 4 on a 10/100 module in the first module slot on the switch, you enter:
switch(config)#interface fa 1/4
• Interface type—Each switch in the Catalyst 2950 and Catalyst 3550 platform supports different
types of interfaces. To display a complete list of the interface types supported on your switch, enter
the interface ? global configuration command. This example shows what the interface ? command
displays on a Catalyst 2950 LRE switch:
lreswitch(config)#interface ?
Async Async interface
BVI Bridge-Group Virtual Interface
Dialer Dialer interface
GE-WAN GigabitEthernetWAN IEEE 802.3z
GigabitEthernet GigabitEthernet IEEE 802.3z
Group-Async Async Group interface
Lex Lex interface
LongReachEthernet Long Reach Ethernet
Loopback Loopback interface
Multilink Multilink-group interface
Null Null interface
Port-channel Ethernet Channel of interfaces
Transparent Transparent interface
Tunnel Tunnel interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Vlan Catalyst Vlans
fcpa Fiber Channel
range interface range command
Note The multilink and virtual-TokenRing interface types are not supported on the Catalyst 2950 LRE
switches.
• Slot number—The slot number on the switch. On the modular Catalyst 2900 XL switches, the slot
number is 1 or 2. On non-modular Catalyst 2950 LRE and Catalyst 3500 XL switches, the slot
number is 0.
command ? List the associated keywords for a command.
For example:
Switch> show ?
command keyword ? List the associated arguments for a keyword.
For example:
Switch(config)# cdp holdtime ?
<10-255> Length of time (in sec) that receiver must keep this packet
Table 2-2 Help Summary (continued)
Command Purpose