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Catalyst 3560 Switch Command Reference
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Chapter 2 Catalyst 3560 Switch 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.
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.
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(25)SEC This command was introduced.
Command Description
show spanning-tree mst Displays the multiple spanning-tree (MST) region configuration
and status, including the transmit hold count.
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