Cisco 3560x-24p 参考指南
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Catalyst 3750-X and 3560-X Switch Command Reference
OL-21522-02
Chapter 2 Catalyst 3750-X and 3560-X Cisco IOS Commands
spanning-tree transmit hold-count
spanning-tree transmit hold-count
Use the spanning-tree transmit hold-count global configuration command to configure the number of
bridge protocol data units (BPDUs) sent every second. Use the no form of this command to return to the
default setting.
bridge protocol data units (BPDUs) sent every second. Use the no form of this command to return to the
default setting.
spanning-tree transmit hold-count [value]
no spanning-tree transmit hold-count [value]
Syntax Description
Defaults
The default is 6.
Command Modes
Global configuration
Command History
Usage Guidelines
Increasing the transmit hold-count value can have a significant impact on CPU utilization when the
switch is in rapid-per-VLAN spanning-tree plus (rapid-PVST+) mode. Decreasing this value might slow
down convergence. We recommend using the default setting.
switch is in rapid-per-VLAN spanning-tree plus (rapid-PVST+) mode. Decreasing this value might slow
down convergence. We recommend using the default setting.
Examples
This example shows how to set the transmit hold count to 8:
Switch(config)# spanning-tree transmit hold-count 8
You can verify your setting by entering the show spanning-tree mst privileged EXEC command.
Related Commands
value
(Optional) Number of BPDUs sent every second. The range is 1 to 20.
Release
Modification
12.2(53)SE2
This command was introduced.
Command
Description
mst
Displays the multiple spanning-tree (MST) region configuration
and status, including the transmit hold count.
and status, including the transmit hold count.