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16COREBUILDER 6000 EXTENDED SWITCHING SOFTWARE REVISION 8.2.3

Top-Level Menu

Full-duplex mode eliminates both the link’s collision domain and the need for collision detection. As a result, full-duplex point-to-point links can be much longer than half-duplex links.

To configure a port for full-duplex operation:

The items available on the top-level menus in this section vary depending on your level of access and on the modules installed in your CoreBuilder 6000 chassis.

1From the top level of the Administration Console, enter:

system

➧ethernet summary

fddi detail tokenring➧fastEthernet

bridge	label
ip
	portState
ipx
appletalk
snmp
analyzer
script
logout

s

➧duplexMode

ifm

ethernet fastEthernet duplexMode

A prompt similar to the following one appears:

Select slot(s) (10-12all):

This prompt indicates that the CoreBuilder 6000 system contains configurable Fast Ethernet ports in slots 10, 11, and 12.

2Enter the number(s) of the slot(s) that contain ports that you want to set to full-duplex mode:

10-12

For each slot you enter, the system prompts you for specific port numbers:

Select Ethernet port(s) (1-8,all):

3Enter the number(s) of the port(s) that you want to configure:

1,2,5-7

The system displays this message:

Warning: Changing mode to full duplex disables collision detection. The device connected to this port must be configured for the same duplex mode.

Do you want to change the duplex mode (n,y) [y]:

The CoreBuilder 6000 system does not support autonegotiation of duplex mode between devices. You must configure any device attached to this port to the same duplex mode as the port.

4Enter y for Yes, n for No.

You receive the prompt to select each port’s duplex mode:

Enter new value (full, half) [half]: