Table of Contents
Advertisement
each of them.
4.3.8.2 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.
Time since topology change - The time in seconds since the topology of the CST last
changed.
Figure 4-55 Spanning Tree Switch Configuration/Status
Advertisement
Table of Contents
