Command Reference Guide

194 ● force-link 3Com Router 5000 Family and Router 6000 Family
Command Reference
force-link
Purpose Use the force-link command to enable the GE interface to work in force mode.
Use the
undo force-link command to restore the default operating mode.
Syntax force-link
undo force-link
Parameters None
Default The default operating mode is negotiation.
Example Enable negotiation on the GE interface 0/0/0.
[Router-GigabitEthernet0/0/0] force-link
View This command can be used in the following views:
■ GE Interface view
Description GE optical interfaces provide two operating modes: negotiation and force. In
negotiation mode, the interface chip checks negotiation code, negotiating the format
of the PAUSE frame and the peer state (that is, whether it is faulty). In force mode, no
negotiation stream is present on the line. The interface chip decides whether an
interface can be brought up depending on how much light intensity it reads.
You must set the two ends to work in the same operating mode. Any inconsistency
can prevent the interface adopting negotiation mode from going up.