Nortel Networks 380 Switch User Manual


 
136 Chapter 3 Using the console interface
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Symmetric mode
This mode allows the ports and their link partner to send flow control pause
frames to each other.
When a pause frame is received (by either the port or its link partner), the port
suspends transmission of frames for a number of slot times specified in the control
frame or until a pause-release control frame is received. Both devices on the link
must support this mode when it is selected.
Asymmetric mode
This mode allows the link partner to send flow control pause frames to the port.
When a pause frame is received, the receiving port suspends transmission of
frames for a number of slot times specified in the control frame or until a
pause-release control frame is received.
In this mode, the port is disabled from transmitting pause frames to its link
partner. Use this mode when the port is connected to a buffered repeater device.
MultiLink Trunk Configuration Menu screen
The MultiLink Trunk Configuration Menu screen (Figure 66) allows you to select
the appropriate screen to configure up to six MultiLink Trunks (you can group up
to four switch ports together to form each trunk).
You can monitor the bandwidth usage for the trunk member ports within each
trunk. For more information about configuring MultiLink Trunks, see “MultiLink
Trunks” on page 74.
Note: When a trunk is not active (Trunk Status field set to Disabled),
configuration changes do not take effect until you set the Trunk Status
field to Enabled.