Configuring The Hello Time - Cisco Catalyst 2960 series Configuration Manual

How to Configure Spanning-Tree Features
Command or Action
Step 2
configure terminal
Example:
Switch# configure terminal
Step 3 spanning-tree vlan vlan-id priority
priority
Example:
Switch(config)# spanning-tree vlan
20 priority 8192
Step 4 end
Example:
Switch(config-if)# end

Configuring the Hello Time

The hello time is the time interval between configuration messages generated and sent by the root switch.
This procedure is optional.
SUMMARY STEPS
1. enable
2. spanning-tree vlan vlan-id hello-time seconds
3. end
DETAILED STEPS
Command or Action
Step 1
enable
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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Purpose
Enters the global configuration mode.
Configures the switch priority of a VLAN.
• For vlan-id, you can specify a single VLAN identified by VLAN ID
number, a range of VLANs separated by a hyphen, or a series of
VLANs separated by a comma. The range is 1 to 4094.
• For priority, the range is 0 to 61440 in increments of 4096; the default
is 32768. The lower the number, the more likely the switch will be
chosen as the root switch.
Valid priority values are 4096, 8192, 12288, 16384, 20480, 24576,
28672, 32768, 36864, 40960, 45056, 49152, 53248, 57344, and 61440.
All other values are rejected.
Returns to privileged EXEC mode.
Purpose
Enables privileged EXEC mode. Enter your password if prompted.