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Spanning Tree Protocol Configuration
Spanning Tree Protocol as defined by IEEE 802.1D is disabled by default on the Switch. This is to
allow the Switch to progress through the learning more quickly when it is first connected to the network.
Use the STP Switch Settings menu to enable and adjust STP settings for Switch. To disable STP for
individual ports, use the Port Spanning Tree menu.
STP Switch Settings
The following figures and tables describe the configuration of the Spanning Tree Protocol (STP) on the
switch, system-wide. STP must be enabled system-wide in order to effectively enable or disable it on a
per port basis (see next section).
Set the parameters listed below in the STP Switch Settings menu.
Spanning Tree
Protocol
Bridge Max Age
(6-40 Sec)
Bridge Hello Time
(1-10 Sec)
Using the Web-based Management Software
DES-7000/DES-7100 Layer 2 Switch User's Guide
Figure 6- 16. STP Switch Settings Menu
Allows the STP to be globally Enabled or Disabled on the switch. Default
= Disabled.
The maximum time (in seconds) a device can wait without receiving a
configuration message before attempting to reconfigure. All device ports
(except for designated ports) should receive configuration messages at
regular intervals. Any port that ages out STP information (provided in the
last configuration message) becomes the designated port for the attached
LAN. If it is a root port, a new root port is selected from among the device
ports attached to the network.
The minimum value is the higher of 6 or [2 x (Bridge Hello Time +1)].
The maximum value is the lower of 40 or [2 x (Bridge Forward Delay –1)].
Default = 20 Default = 20
The time interval (in seconds) at which the root device transmits a
configuration message. Default = 2
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