Allied Telesis AT-S70 - Manual (Page 76)

Chapter 7: Working with Line Cards and Other Modules
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Link (A) and Link (B)
Indicates whether there are any active connections between a port
and the device connected to the port. Online indicates that there is a
link while Offline indicates that there is no link.
OpMode
Indicates the operating mode status configured on the line cards.
Possible values are:
ˆ Smart Missing Link Mode (SML)
ˆ Missing Link Mode (ML)
ˆ OAM BYPASS Mode
ˆ OAM Visible Mode
ˆ Link Test Mode
More...
Scrolls the screen to show the remaining modules.
2. Press <Esc> or select the “Return to ...” option at the bottom of the
menu, to save the settings and return to the previous menu.