Redundancy
RM Web L3E
Release
6.0
07/2010
7.5
Spanning Tree
187
In the “Protocol Configuration / Information” frame you can configure the
following values and read information.
In the context of MSTP, these are the settings for the Common Spanning
Tree (CST).
Parameter Meaning Possible Values Default Setting
Column
„Bridge“
Information and configuration
parameters of the local device
Bridge ID
(read only)
The local Bridge ID, made up of the local
priority and its own MAC address.
The format is
ppppp / mm mm mm mm mm mm,
with: ppppp: priority (decimal) and
mm: the respective byte of the MAC
address (hexadecimal).
Priority Sets the local bridge priority.
The bridge priority and its own MAC
address make up this separate Bridge
ID. The device with the best (numerically
lowest) priority becomes the root device.
Define the root device by assigning the
device the best (numerically lowest)
priority in the Bridge ID among all the
devices in the network.
Note that you may only enter multiples of
4,096 for this value.
0 ≤ n * 4,096 ≤
61,440
32,768
Hello Time Sets the Hello Time.
The local Hello Time is the time in
seconds between the sending of two
configuration messages (Hello packets).
If the local device is the root, the other
devices in the entire network take over this
value. Otherwise the local device uses the
value of the root bridge in the “Root”
column on the right.
1 - 2 2
Table 81: Global Spanning Tree settings, local bridge parameters