T2700G-28TQ
JetStream 28-Port Gigabit Stackable L2+ Managed Switch CLI Guide
226
Command Mode
Global Configuration Mode
Example
Configure TC Threshold as 30 packets and TC Protect Cycle as 10 seconds:
T2700G-28TQ(config)#spanning-tree tc-defend threshold
30
period
10
spanning-tree timer
Description
The
spanning-tree timer
command is used to configure forward-time,
hello-time and max-age of Spanning Tree. To return to the default configurations,
please use
no spanning-tree timer
command.
Syntax
spanning-tree timer
{
[
forward-time
forward-time
] [
hello-time
hello-time
]
[
max-age
max-age
] }
no spanning-tree timer
Parameter
forward-time
—— Forward Delay, which is the time for the port to transit its state
after the network topology is changed. Forward Delay ranges from 4 to 30 in
seconds and it is 15 by default. Otherwise, 2 * (Forward Delay - 1) >= Max Age.
hello-time
——Hello Time, which is the interval to send BPDU packets, and
used to test the links. Hello Time ranges from 1 to 10 in seconds and it is 2 by
default. Otherwise, 2 * (Hello Time + 1) <= Max Age.
max-age
—— The maximum time the switch can wait without receiving a BPDU
before attempting to reconfigure, ranging from 6 to 40 in seconds. By default, it
is 20.
Command Mode
Global Configuration Mode
Example
Configure forward-time, hello-time and max-age for Spanning Tree as 16
seconds, 3 seconds and 22 seconds respectively:
T2700G-28TQ(config)#spanning-tree timer forward-time
16
hello-time
3
max-age
22
