Configuring Port Speed and Duplex
To configure the port speed—whether 10Mbps or 100Mbps—use the following commands:
CORIOLIS5500(config) interface fastethernet 2/3
CORIOLIS5500(config−int) speed 100
CORIOLIS5500(config−int) duplex full
The auto command can be used when the port on the other side is manually set. Links should not be
configured with the auto setting on both devices connecting the links because both sides will try to determine
the speed on the other side of the link and neither will agree.
You can change the port duplex from full duplex to half duplex, as shown in the following commands:
CORIOLIS8500(config) interface fastethernet 0/1
CORIOLIS8500(config−int) speed auto
CORIOLIS8500(config−int) duplex half
Enabling SNMP Contact
To set the SNMP contact for RMON support, configure your switch with a contact name, location, and chassis
identification to make the device easily identifiable by an SNMP management station. You can set the SNMP
system contact, location, serial number, and, most importantly, the community that is the same as the
community configured on your SNMP management station. You can configure these items as shown here in
the same order as discussed, from the Global Configuration mode prompt:
CORIOLIS8500(config) snmp−server contact Joe Snow
CORIOLIS8500(config) snmp−server location Coriolis Wiring Closet
CORIOLIS8500(config) snmp−server chassis−id 987654321
CORIOLIS8500(config) snmp−server community coriolis
Configuring a Set/Clear−Based CLI Switch
In this section, you’ll walk through the basic configuration of the Set/Clear
command−based CLI switches. Although these tasks are not all mandatory, completing them will help you to
better manage your switches.
Logging On to a Switch
To begin configuring your switch, do the following:
Connect the console cable and connector to a terminal or PC and power on the switch. The switch will
then go through its initial POST, which runs diagnostics and checks for the reliability of the switch
components.
1.
Once the POST has completed successfully, the initial prompt should show a User EXEC mode
prompt:
Enter Password:
2.
No password has been configured at this point, so just press the Enter key to continue.
3.
Cisco switches have two levels of access by default: User EXEC mode and Privileged EXEC mode.
User EXEC mode will allow you to do some basic tasks, such as show the port or VLAN information.
To get more advanced configuration options, you will need to enter Privileged EXEC mode. Use the
following command to enter Privileged EXEC mode:
4.
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Summary of Contents for Catalyst 1900 Series
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