5000 Series Layer 2/3 Managed Data Center Switch CLI Reference Guide
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5-231 spanning-tree vlan hello-time
Configure hello time (spanning-tree) for a specified or range of VLANs. The default is 2 seconds. Set this
value to a lower number to accelerate the discovery of topology changes.
spanning-tree vlan vlan-list hello-time 1-10
Parameters
vlan-list
ApplicableVLANs.
hello-time 1-10
Forward hello time for spanning tree. The range is 1-10 seconds.
Default
The default is 2.
Command Mode
Global Config
5-232 spanning-tree vlan max-age
Configure the spanning tree maximum age time. The default is 20 seconds.
To accelerate the discovery of topology changes lower the value.
Note: Consider the end-to-end BPDU propagation delay and message age overestimate for the specific
topology when configuring this value.
Default settings: 20 for a network of diameter 7; lost message value 3; transit delay 1; hello interval 2
seconds; overestimate per bridge 1 second; and BPDU delay 1 second. For a network of diameter 4, a
setting of 16 seconds is appropriate if all other timers remain at their default values.
spanning-tree vlan vlan-list max-age 6-40
Parameters
vlan-list
Applicable VLANs.
max-age 6-40
Time for spanning tree forwarding hello time. The range is 1-10
seconds.
Default
The default is 20.
Command Mode
Global Config