Nortel Networks 4050 用户手册

Chapter 10 Configuring system settings 513

Nortel Secure Network Access Switch 4050 User Guide

 

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Mode

Specifies the mode of operation for the port numbers 
assigned to this interface. The options are:

•

failover — only one link is active at any given time. If the 
port with an active link fails, the active link is 
immediately switched over to one of the other ports 
configured for the interface. When you select failover 
mode, you also have the option of specifying a primary 
port.

•

trunking — active links are sustained on all configured 
ports simultaneously, in order to increase network 
throughput.

The default is failover.

Primary Port

Specifies the primary port in the interface, on which the 
active link is set up. If the primary port fails, the active link 
is immediately transferred to a remaining (secondary) port. 
As soon as the primary port regains functionality, the active 
link is transferred back to the primary port.

An integer indicating the port number of the physical port 
assigned to the interface. The default is 

0

 (zero).

The default value of zero means that the currently active 
link remains in use until it fails. If the port fails, the link is 
transferred to another port. The link remains active on the 
port to which it was transferred, even after the failed port 
regains functionality.

The primary port setting applies only when you have 
configured more than one port in the interface, and the 
mode is failover.

Interface fields (continued)