LAN Switch Configuration 179
Default 1900 Configuration
The default values vary depending on the features of the switch. The following list provides
some of the default settings for the Catalyst 1900 switch. (Not all the defaults are shown in this
example.)
·
IP address: 0.0.0.0
·
CDP: Enabled
·
Switching mode: FragmentFree
·
100BaseT port: Auto-negotiate duplex mode
·
10BaseT port: Half duplex
·
Spanning Tree: Enabled
·
Console password: None
Numbering Ports (Interfaces)
The terms interface and port both are used to describe the physical connectors on the switch
hardware. For instance, the show running-config command uses the term interface; the
show spantree command uses the term port. The numbering of the interfaces is relatively
straightforward; the interface numbering convention for the 1912 and 1924 switches is shown
in Table 4-16. Example 4-2 shows three EXEC commands and highlights the use of the terms
interface and port.
copy tftp://10.1.1.1/config.cfg nvram
Copies a configuration file from the TFTP server
at IP address 10.1.1.1.
copy nvram tftp://10.1.1.1/config.cfg
Saves a configuration file to the TFTP server at IP
address 10.1.1.1.
delete nvram
Removes all configuration parameters and returns
the switch to factory default settings
Table 4-16
Catalyst 1912 and 1924 Interface/Port Numbering
Catalyst 1912
Catalyst 1924
10BaseT Ports
12 total (e0/1 to e0/12)
24 total (e0/1 to e0/24)
AUI Port
e0/25
e0/25
100BaseT Uplink Ports
fa0/26 (port A)
fa0/27 (port B)
fa0/26 (port A)
fa0/27 (port B)
Table 4-15
Commands for Catalyst 1900 Switch Configuration (Continued)
Command
Description
ch04.fm Page 179 Monday, March 20, 2000 5:02 PM