D-Link DWS-1008 User Manual page 220

DWS-1008 User's Manual
Changing Spanning Tree Timers
You can change the following STP timers:
• Hello interval - The interval between configuration messages sent by a switch when
the switch is acting as the root bridge. You can specify an interval from 1 through 10
seconds. The default is 2 seconds.
• Forwarding delay - The period of time a bridge other than the root bridge waits after
receiving a topology change notification to begin forwarding data packets. You can
specify a delay from 4 through 30 seconds. The default is 15 seconds. (The root bridge
always forwards traffic.)
• Maximum age - The period of time that a switch acting as a designated bridge waits
for a new hello packet from the root bridge before determining that the root bridge is
no longer available and initiating a topology change. You can specify an age from 6
through 40 seconds. The default is 20 seconds.
Changing the STP Hello Interval
To change the hello interval, use the following command:
set spantree hello interval {all | vlan vlan-id}
Specify an interval from 1 through 10 seconds. The default is 2 seconds.
The all option applies the change to all VLANs. Alternatively, specify an individual VLAN. To
change the hello interval for all VLANs to 4 seconds, type the following command:
DWS-1008# set spantree hello 4 all
success: change accepted.
Changing the STP Forwarding Delay
To change the forwarding delay, use the following command:
set spantree fwddelay delay {all | vlan vlan-id}
Specify a delay from 4 through 30 seconds. The default is 15 seconds.
The all option applies the change to all VLANs. Alternatively, specify an individual VLAN. To
change the forwarding delay on VLAN pink to 20 seconds, type the following command:
DWS-1008# set spantree fwddelay 20 vlan pink
success: change accepted.
D-Link Systems, Inc. D-Link Systems, Inc.
Configuring and Managing STP
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