Linksys LGS308 User Manual page 104

Learning—The port on this instance is in Learning mode. The port cannot
o
forward traffic, but it can learn new MAC addresses.
Forwarding—The port on this instance is in Forwarding mode. The port can
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forward traffic and learn new MAC addresses.
Boundary—The port on this instance is a boundary port. It inherits its state
o
from instance 0 and can be viewed on the STP Interface Settings page.
• Port Role—Displays the port or LAG role, per port or LAG per instance, assigned by
the MSTP algorithm to provide STP paths:
Root—Forwarding packets through this interface provides the lowest cost
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path for forwarding packets to the root device.
Designated—The interface through which the bridge is connected to the
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LAN, which provides the lowest root path cost from the LAN to the Root
Bridge for the MST instance.
Alternate—The interface provides an alternate path to the root device
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from the root interface.
Backup—The interface provides a backup path to the designated port path
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toward the Spanning Tree leaves. Backup ports occur when two ports are
connected in a loop by a point-to-point link. Backup ports also occur when a
LAN has two or more established connections to a shared segment.
Disabled—The interface does not participate in the Spanning Tree.
o
Boundary—The port on this instance is a boundary port. It inherits its state
o
from instance 0 and can be viewed on the STP Interface Settings page.
Mode—Displays the current interface Spanning Tree mode.
•
If the link partner is using MSTP or RSTP, the displayed port mode is RSTP.
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If the link partner is using STP, the displayed port mode is STP.
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Type—Displays the MST type of the port.
•
Boundary—A Boundary port attaches MST bridges to a LAN in a remote
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region. If the port is a boundary port, it also indicates whether the device on
the other side of the link is working in RSTP or STP mode.
Internal—The port is an internal port.
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• Designated Bridge ID—Displays the ID number of the bridge that connects the link
or shared LAN to the root.
• Designated Port ID—Displays the Port ID number on the designated bridge that
connects the link or the shared LAN to the root.
• Designated Cost—Displays the cost of the port participating in the STP topology.
Ports with a lower cost are less likely to be blocked if STP detects loops.
• Remain Hops—Displays the hops remaining to the next destination.
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