4 Configuration D-Link DXS-1210 Series User Manual
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each link between bridges is sensitive to the status of the link. Ultimately this difference results in faster
detection of failed links, and thus faster topology adjustment.
By default Multiple Spanning Tree is enabled. It will tag BPDU packets to receiving devices and distinguish
spanning tree instances, spanning tree regions and the VLANs associated with them.
After enabling STP, configure the STP Global Settings. (shown below)
Figure 4.67 – L2 Features > STP > STP Global Settings
STP State: Select the Spanning Tree Protocol to be enabled or disabled.
Click the Apply button to save your settings.
STP Traps:
STP New Root Trap: Select to enable or disable the STP new root trap option.
STP Topology Change Trap: Select to enable or disable the STP topology change trap option.
Click the Apply button to save your settings.
STP Mode: Select the STP mode. The options to choose from are MSTP, RSTP and STP.
Click the Apply button to save your settings.
STP Priority:
STP (0-61440): Enter the STP priority value. This value is between 0 and 61440. By default, this value is
32768. The lower the value, the higher the priority.
Click the Apply button to save your settings.
STP Configuration:
Bridge Max Age (6-40): Enter the bridge’s maximum age value here. This value must be between 6 and 40
seconds. By default, this value is 20 seconds. The maximum age value may be set to ensure that old
information does not endlessly circulate through redundant paths in the network, preventing the effective
propagation of the new information. Set by the Root Bridge, this value will aid in determining that the Switch
has spanning tree configuration values consistent with other devices on the bridged LAN.
Bridge Forward Time (4-30): Enter the bridge’s forwarding time value. This value must be between 4 and
30 seconds. By default, this value is 15 seconds. Any port on the Switch spends this time in the listening
state while moving from the blocking state to the forwarding state.
Max Hops (1-40): Enter the maximum number of hops that are allowed. This value must be between 1 and
40 hops. By default, this value is 20 hops. This value is used to set the number of hops between devices in a
spanning tree region before the BPDU (bridge protocol data unit) packet sent by the Switch will be discarded.
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