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XG Series User's Guide Chapter 5 Command Reference
STP Information
220
5.8.1.4 stp hello
Function Set a Hello message transmission interval.
Available Model XG0224 / XG0448 / XG2600
Syntax stp hello <time>
Options
<time>
•
Transmission interval
Specify a transmission interval of configuration BPDU to be sent periodically after this
device becomes a root bridge, within the range of 1 to 10 seconds. The unit will be s
(second).
Use Mode Configuration mode (admin class)
Explanation Specify a transmission interval of configuration BPDU to be sent when this device
functions as a root bridge.
This setting is disabled when this device does not function as a root bridge even if it uses
an STP.
Caution <time> checks the relationship with the definition value of stp age <max_age>.
• Check with max age time
max age time > = 2
× (hello time + 1.0 second)
If the definition value is invalid, the set values of <max_age>, <delay_time>, and <time>
will be disabled.
The following shows definition conditions that are available for checking the relationship
between <max age>, <delay_time>, and <time>.
2
× (forward delay time - 1.0 second) >= max age time >= 2 × (hello time + 1.0 second)
Default It is assumed that 2 seconds are set for a transmission interval of configuration BPDU.
stp hello 2s