Quick Reference Guide

120 | Configuring Interfaces
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Enabling an Interface
Ports are shut down by default. To enable them, you can do so in bulk mode or per port. For more on bulk
configuration, see Bulk Configuration on page 126.
To enable an individual port, use the following sequence of commands:
Configuring Speed and Duplex Mode
As stated above, ports are set by default to auto-negotiate their speed and duplex mode. While you are still
in Interface Config mode, you can use the following commands to manually set the speed and duplex
mode. (See also Bulk Configuration on page 126.)
The show port unit/slot/port command indicates in the Admin Mode field whether the port is
administratively enabled or shut down, in the Physical Mode field whether auto-negotiation is selected, the
speed and duplex, and, in the Physical Status field, the speed and duplex mode.
Step Command Syntax Command Mode Purpose
1 interface
unit/slot/port
Global Config
To access the Interface Config mode for the selected port, enter
the keyword interface followed by the port number in unit/slot/
port
format. For example, to configure port 4 on stack member
2, enter interface 2/0/4.
2
no shutdown Interface Config Enable the selected interface.
Step Command Syntax Command Mode Purpose
1 no auto-negotiate Interface Config Disable auto-negotiation on the selected port.
2
speed {{10 | 100 |
1000} {half-duplex |
full-duplex}}
Interface Config Manually set the speed and duplex mode on the selected port.
For example, you would do this if your port is to be connected
to a port that does not support auto-negotiation.
Note: The 10G ports that are in the optional rear module
of the S50 do not support the speed command or the no
auto-negotiate command. You must let them
auto-negotiate their connections.
3
exit Interface Config
Exit to the Global Config mode.
4
exit
Global Config
Exit to the Privileged Exec mode.
5
show port unit/slot/
port
Privileged Exec
Verify that the port is enabled and that the speed is set. See
Figure 7-86.