Allied Telesis AT-FS970M Series - Manual (Page 99)

AT-FS970M Series Version 2.3.1.0 Web Interface User’s Guide
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 Link Type— Choose from the following settings:
AUTO: The switch determines the link type of the port is either
PTP or Shared. If a port is set to full-duplex mode, the link type
is point-to-point. If a port is set to half-duplex mode, the link
type is shared.
PTP: Allows the port rapid transition to the forwarding state
during the convergence process of the spanning tree domain.
Shared: Disables rapid transition. You may want to set the link
type to shared if the port is connected to a hub with multiple
switches connected to it.
 Loop Guard— Enable or disable the BPDU loop-guard feature on
the port. If a port with the loop guard activated stops receiving
BPDU packets, the switch automatically shut down the port. A port
that is disabled by the feature remains in that state until it begins to
receive BPDU packets again or the switch is reset. The default
setting for BPDU loop-guard on the ports is disabled.
 Root Guard— Enable or disable the Root Guard feature.
6. Click Apply.
7. Click SAVE to save your changes to the startup configuration file.