Configuration Using Web Based Management and the Command Line Interface
C79000-G8976-C184-07
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ity (in other words, with the lowest value for
this parameter) becomes the root bridge. If several network components in a
e
the
Bridge Identifier
. Since the root
bridge manages all path changes, it should be located as centrally as
ultiple of 4096 with a range of values from 0 through
61440.
Max Age
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ure the network.
Hello Time
PDUs). The interval
between two such frames is the
Hello Time
. The default for this parameter is
2 seconds.
d Delay
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fter the
ied in the
Forward Delay
parameter. This ensures that operation
d with the new topology after all the bridges have the required
ds.
Syntax of the Command Line Interface
The bridge with the highest prior
network have the same priority, the station whose MAC address has the
lowest numeric value will become the root bridge. Both parameters, bridg
priority and MAC address together form
possible due to the propagation time of the frames. The value for the bridge
priority is a whole m
Max Age is the time that a bridge waits for a configuration frame (BPDU).
When this time has elapsed, the bridge attempts to reconfig
The default for this parameter is 20 seconds.
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Each bridge regularly sends configuration frames (B
Forwar
New configuration data is not used immediately by a bridge but only a
period specif
is only starte
information. The default for this parameter is 11 secon
CLI\BRIDGE\SPANNING>
Command
Description
Comment
info
Displays the current Spanning Tree
configuration.
spanning [E|D]
algorithm.
Enables (E) or disables (D) the (R)STP
version [R | S]
Specifies whether the Rapid Spanning
Tree (R) or Spanning Tree (S) mode is
used.
bridge [0 ...
This specifies the bridge priority for the Default value: 32768
61440]
SCALANCE W:
hellotm [1 ... 10]
alue: 2 s
Specifies the interval between two
BPDUs in seconds.
Default v
fwd_delay [
.
Specifies the delay time for the
Default value: 11 s
4 .. 30]
effectiveness of configuration
information (specified in seconds).
maxage [6 ... 40]
Maximum age for configuration
information. (specified in seconds)
Default value: 20 s
Operating Instructions SCALANCE W78x