3com 10002211 Benutzerhandbuch

5 Enter 

 to set the port to full-duplex mode or 

 to set the port 

to half-duplex mode. 

The port’s current setting is indicated in brackets. To select this default, 
press Return. This action leaves the port duplex mode unchanged.

6 Repeat steps 4 and 5 to configure all the selected ports in all the 

selected slots.

Intelligent flow management 

(IFM) is a congestion control mechanism that is built into the 
CoreBuilder system. You should implement IFM on any Fast Ethernet 
port that has a high volume of traffic. By default, IFM is enabled on 
CoreBuilder module ports.

Congestion is caused when one or more devices send traffic to an already 
congested port. If the port is connected to another CoreBuilder system or to 
an end station, IFM minimizes packet loss and inhibits the sending device 
from generating more packets until the congestion ends.

To apply IFM to a half-duplex Fast Ethernet port:

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

A prompt similar to the following one appears:

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

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

2 Enter the number(s) of the slot(s) that contain ports that you want to 

set to IFM mode:

To select the default  

, press Return.

system

➧

ethernet
fddi
tokenring
bridge
ip
ipx
appletalk
snmp
analyzer
script
logout

summary
detail

➧

fastEthernet
label
portState

s

duplexMode

➧

ifm