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Chapter 11: Configuring Spanning Tree
Defining Multiple Spanning Tree
SFE1000P Gigabit Ethernet Switch Administration Guide
Chapter
11
to-point link. Backup ports also occur when a LAN has two or more connections
connected to a shared segment.
–
Disabled
— Indicates the port is not participating in the Spanning Tree.
•
Mode
— Indicates the current Spanning Tree mode. The possible field values are:
–
Classic STP
— Indicates that Classic STP is enabled on the device.
–
Rapid STP
— Indicates that Rapid STP is enabled on the device.
•
Type
— Indicates if the port is a point-to-point port, or a port connected to a hub. The
possible field values are:
–
Boundary Port
— Indicates the port is a boundary port. A Boundary port attaches MST
bridges to LAN in an outlying 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
–
Master Port
— Indicates the port is a master port. A Master port provides connectivity
from a MSTP region to the outlying CIST root.
–
Internal
— Indicates the port is an internal port.
•
Port Priority
— Defines the interface priority for specified instance. The default value is 128.
•
Path Cost
— Indicates the port contribution to the Spanning Tree instance. The range should
always be 1-200,000,000.
•
Port State
— Indicates the MSTP status on the specific port. The possible field values are:
–
Disabled
— Indicates that STP is currently disabled on the port. The port forwards traffic
while learning MAC addresses.
–
Blocking
— Indicates that the port is currently blocked and cannot forward traffic or
learn MAC addresses.
–
Listening
— Indicates that the port is in Listening mode. The port cannot forward traffic
nor can it learn MAC addresses.
–
Learning
— Indicates that the port is in Learning mode. The port cannot forward traffic,
however it can learn new MAC addresses.
–
Forwarding
— Indicates that the port is in Forwarding mode. The port can forward
traffic and learn new MAC addresses.
•
Designated Cost
— Indicates that the default path cost is assigned according to the method
selected on the Spanning Tree Global Settings page.
•
Designated Bridge ID
— Indicates that the bridge ID number that connects the link or shared
LAN to the root.
•
Designated Port ID
— Indicates that the Port ID number on the designated bridge that
connects the link or the shared LAN to the root.