D-Link DES-6000 User Manual page 92

STP Switch Settings
To configure Spanning Tree Protocol functions for the Switch, enter the desired information in the fields on
this screen (see the descriptions below for assistance) and then click Apply.
The items you can change include:
♦ Spanning Tree Protocol This option allows you to enable or disable Spanning Tree Protocol on a
switch-wide basis.
♦ Max Age: (6 . . 40 sec) The Maximum Age can be from 6 to 40 seconds. At the end of the Maximum
Age, if a BPDU has still not been received from the Root Bridge, your Switch will start sending its
own BPDU to all other switches for permission to become the Root Bridge. If it turns out that your
Switch has the lowest Bridge Identifier, it will become the Root Bridge.
♦ Hello Time: (1 . . 10 sec) The Hello Time can be from 1 to 10 seconds. This is the interval between
two transmissions of BPDU packets sent by the Root Bridge to tell all other switches that it is indeed
the Root Bridge. If you set a Hello Time for your Switch, and it is not the Root Bridge, the set Hello
Time will be used if and when your Switch becomes the Root Bridge.
♦ Forward Delay: (4 . . 30 sec) The Forward Delay can be from 4 to 30 seconds. This is the time any
port on the Switch spends in the listening state while moving from the blocking state to the
forwarding state.
♦ Bridge Priority: (0 . . 65535) A Bridge Priority can be from 0 to 65535.
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Figure 7-8. STP Switch Settings window
Modular Ethernet Switch User's Guide
Web-Based Network Management