HP 5900 series Command Reference Manual: Stp Transmit-limit

Layer 2 - lan switching.
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In a stable network, this kind of spanning tree calculation may occur because the upstream device is busy.
You can avoid such unwanted spanning tree calculations by lengthening the timeout interval (by setting
the timeout factor to 4 or more), thus saving network resources. HP recommends that you set the timeout
factor to 5, 6, or 7 for a stable network.
Examples
# Set the timeout factor of the device to 7.
<Sysname> system-view
[Sysname] stp timer-factor 7
Related commands
stp timer hello

stp transmit-limit

Use stp transmit-limit to set the maximum number of BPDUs that the ports can send within each hello
time.
Use undo stp transmit-limit to restore the default.
Syntax
stp transmit-limit limit
undo stp transmit-limit
Default
The maximum transmission rate of all ports is 10. Each port can send up to 10 BPDUs within each hello
time.
Views
Ethernet interface view, aggregate interface view
Predefined user roles
network-admin
Parameters
limit: Sets the maximum number of BPDUs the ports can send within each hello time, in the range of 1 to
255.
Usage guidelines
A larger maximum transmission rate value requires more system resources. An appropriate maximum
transmission rate setting can prevent spanning tree protocols from using excessive bandwidth resources
during network topology changes. HP recommends that you use the default value.
When the setting is configured in Ethernet interface view, it takes effect on only that interface.
When the setting is configured in aggregate interface view, it takes effect on only the aggregate
interface.
When the setting is configured on a member port in an aggregation group, it takes effect only after the
port leaves the aggregation group.
Examples
# Set the maximum transmission rate of port Ten-GigabitEthernet 1/0/1 to 5.
<Sysname> system-view
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This manual also for:

5920 series

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