SMC Networks 8728L2 - annexe 1, Management Manual

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C
ONFIGURING THE
S
WITCH
3-148
Trunk Member – Indicates if a port is a member of a trunk.
(STA Port Information only)
These additional parameters are only displayed for the CLI:
•
Admin status – Shows if this interface is enabled.
• Path cost – The path cost for the IST. This parameter is used by the
STA to determine the best path between devices. Therefore, lower
values should be assigned to ports attached to faster media, and higher
values assigned to ports with slower media. (Path cost takes
precedence over port priority.)
• Priority – Defines the priority used for this port in the Spanning Tree
Algorithm. If the path cost for all ports on a switch is the same, the
port with the highest priority (i.e., lowest value) will be configured as
an active link in the Spanning Tree. This makes a port with higher
priority less likely to be blocked if the Spanning Tree Algorithm is
detecting network loops. Where more than one port is assigned the
highest priority, the port with the lowest numeric identifier will be
enabled.
• Designated root – The priority and MAC address of the device in the
Spanning Tree that this switch has accepted as the root device.
• Fast forwarding – This field provides the same information as Admin
Edge port, and is only included for backward compatibility with earlier
products.