Administrator Guide

Layer 2 Switching Commands 783
User Guidelines
This command can be configured even if the switch is configured for
MST(RSTP) mode. It is only used when the switch is configured for STP-PV
or RSTP-PV modes.
Set this value to a lower number to accelerate discovery of topology changes.
Use the no form of the command to return the hello time to its default value.
Example
console(config)#spanning-tree vlan 3 hello-time 1
spanning-tree vlan max-age
Use the spanning-tree vlan max-age command to configure the spanning tree
maximum age time for a set of VLANs. Use the no form of the command to
return the maximum age timer to the default value.
Syntax
spanning-tree vlan vlan-list max-age 6-40
no spanning-tree vlan vlan-list> max-age
• max-age — The maximum age time before a bridge port saves its
configuration information.
Default Configuration
The default maximum aging time is 20 seconds.
Command Modes
Global Configuration Mode
User Guidelines
Set this value to a lower number to accelerate discovery of topology changes.
The network operator must take into account the end to end BPDU
propagation delay and message age overestimate for their specific topology
when configuring this value.