Delta DVS-328 series, User Manual

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D V S M a n a g e d I n d u s t r i a l R a c k Mo u n t E t h e r n e t S wi t c h U s e r Ma n u a l
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CST Configuration
Description Factory default
Bridge Priority
Each switch or bridge is assigned a priority when they are running STP. After the
devices exchange BPDUs, the lowest priority value becomes the root bridge. Enter the
bridge priority value for the CIST. Enter a number that is a multiple of 4096 and it must
be in the range of 0 to 61440.
32768
Bridge Max Age (secs)
Enter the maximum age time for the CIST in seconds. This time is the period that a
STP bridge or switch waits before implementing a topological change. The device will
recognize itself as a root if it does not receive a hello message in the time of Bridge
Max Age. Enter a number in the range of 6 to 40 seconds, considering that the period
needs to be less than or equal to 2 *(Bridge Forward Delay–1) and greater than or
equal to 2 * (Bridge Hello Time +1).
20
Bridge Hello Time (secs)
The switch hello time for the CIST. This time is the period in seconds that a root bridge
waits between configuration messages. The value is fixed at 2 seconds.
2
Bridge Forward Delay (secs)
Enter the switch forward delay time, which is the period in seconds that a bridge
remains in a listening and learning state before forwarding packets. Enter a number in
the range of 4 to 30 seconds, considering that the period needs to be greater than or
equal to (Bridge Max Age / 2) + 1.
15
Spanning Tree Maximum Hops
Enter the maximum number of bridge hops; the information for a CST instance can 20