D-Link DAS-3216_revB User Manual
DAS3series LCT Operation Menus
49
Table 3-25
Configuring the Spanning Tree Protocol
Item
Description
STP Status
This specifies the Spanning Tree Protocol status of selected Ethernet port.
Press
the
‘Apply’ button to confirm the setting.
Set Spanning Tree Protocol Status
Priority
This value can determine if the IP-DSLAM will be root switch among all
known switches. The switch with the highest priority (lowest numeric value)
becomes the STP root switch. MAC address (the lowest numeric value) is used
to decide root switch if priority is the same.
Valid values: 0 ~ 61440 in steps of 4096
known switches. The switch with the highest priority (lowest numeric value)
becomes the STP root switch. MAC address (the lowest numeric value) is used
to decide root switch if priority is the same.
Valid values: 0 ~ 61440 in steps of 4096
Bridge Max Age
The maximum age time of Spanning Tree Protocol information learned from the
network on any port before it is discarded, in units of seconds.
Valid values: 6 ~ 40 (Seconds)
network on any port before it is discarded, in units of seconds.
Valid values: 6 ~ 40 (Seconds)
Bridge Hello Time
The amount of time between the transmission of Configuration BPDU (Bridge
Protocol Data Units) by this node on any port when it is the root of the spanning
tree or trying to become so, in units of second.
Valid values: 1 ~ 30 (Seconds)
Protocol Data Units) by this node on any port when it is the root of the spanning
tree or trying to become so, in units of second.
Valid values: 1 ~ 30 (Seconds)
Bridge Forward Delay
This value, measured in units of seconds, controls how fast a port changes its
spanning state when moving towards the Forwarding state. The value
determines how long the port stays in each of the Listening and Learning states,
which precede the Forwarding state. This value is also used, when a topology
change has been detected and is underway, to age all dynamic entries in the
Forwarding Database.
Valid values: 4 ~ 30 (Seconds)
spanning state when moving towards the Forwarding state. The value
determines how long the port stays in each of the Listening and Learning states,
which precede the Forwarding state. This value is also used, when a topology
change has been detected and is underway, to age all dynamic entries in the
Forwarding Database.
Valid values: 4 ~ 30 (Seconds)
The total number of topology changes detected by this bridge since the
management entity was last reset or initialized.
management entity was last reset or initialized.
Topology Change
The bridge identifier of the root of the spanning tree as determined by the
Spanning Tree Protocol as executed by this node. This value is used as the Root
Identifier parameter in all Configuration Bridge PDUs originated by this node.
Spanning Tree Protocol as executed by this node. This value is used as the Root
Identifier parameter in all Configuration Bridge PDUs originated by this node.
STP Designated Root
The time (in second) since the last time a topology change was detected by the
bridge entity.
bridge entity.
Time Since Topology Changed
The maximum age of Spanning Tree Protocol information learned from the
network on any port before it is discarded, in units of seconds, when this bridge
is the root of the spanning tree.
network on any port before it is discarded, in units of seconds, when this bridge
is the root of the spanning tree.
Max Age
The value that all bridges use for Hello Time when this bridge is acting as the
root.
root.
Hello Time
The value that all bridges use for Forward Delay when this bridge is acting as
the root.
the root.
Forward Delay
The port number of the port which offers the lowest cost path from this bridge
to the root bridge.
to the root bridge.
Root Port
Root Cost
The cost of the path to the root as seen from this bridge.
This time value determines the interval length during which no more than two
Configuration bridge PDUs shall be transmitted by this node, in units of
seconds.
This time value determines the interval length during which no more than two
Configuration bridge PDUs shall be transmitted by this node, in units of
seconds.
Hold Time
Press
the
‘Apply’ button to confirm the setting.
DAS3series IP-DSLAM
System Configuration Guide
System Configuration Guide