PLANET WGS3-24000 - Manual (Page 135)

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4.3.8.2 Spanning Tree CST Configuration/Status
Figure 4-3-34 Spanning Tree CST Configuration/Status
Configurable Data
。 Bridge Priority - Specifies the bridge priority for the Common and Internal Spanning tree (CST). The value lies
between 0 and 61440. It is set in multiples of 4096. For example if the priority is attempted to be set to any value
between 0 and 4095, it will be set to 0. If it is tried to be set to any value between 4096 and (2*4096-1) it will be set
to 4096 and so on. The default priority is 32768.
。 Bridge Max Age - Specifies the bridge max age for the Common and Internal Spanning tree (CST). The value lies
between 6 and 40, with the value being less than or equal to "(2 * Bridge Forward Delay ) - 1" and greater than or
equal to "2 * ( Bridge Hello Time +1)". The default value is 20.
。 Bridge Hello Time - Specifies the bridge hello time for the Common and Internal Spanning tree (CST), with the
value being less than or equal to "(Bridge Max Age / 2) - 1". The default hello time value is 2.
。 Bridge Forward Delay- Specifies the time spent in "Listening and Learning" mode before forwarding packets.
Bridge Forward Delay must be greater or equal to "(Bridge Max Age / 2) + 1". The time range is from 4 seconds to
30 seconds. The default value is 15.
Non-Configurable Data
。 Bridge identifier - The bridge identifier for the CST. It is made up using the bridge priority and the base MAC
address of the bridge.