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♦ Hello Time(1-10 Sec) Hello Time is a read-write object
that can be set from 1 to 10 seconds. This is the interval
between two transmissions of BPDU packets sent by the
Root Bridge to tell all other switches that it is indeed the
Root Bridge. If you set a Hello Time for your Switch, and it
is not the Root Bridge, the set Hello Time will be used if
and when your Switch becomes the Root Bridge.
♦ Forward Delay(4-30 Sec) The Forward Delay is a read-
write object that can be set from 4 to 30 seconds. This is
the time any port on the Switch spends in the listening
state while moving from the blocking state to the
forwarding state.
♦ Bridge Priority(0-65535 Sec) A Bridge Priority is a
read-write object that can be set from 0 to 65535. This is
the priority number of the bridge. The value is used in
conjunction with the bridge MAC address to set the bridge
ID, which in turn is used when determining the root
bridge of a multibridged network. The root bridge is
responsible for processing data packets when network
loops occur. The smaller the number set, the higher the
bridge priority is. The higher the bridge priority, the more
chance the bridge has of becoming the root bridge. Zero is
the highest priority.
To change the parameters on individual ports:
1. Choose Configure Spanning Tree Protocol from the
System Configuration menu.
2. Choose STP Custom Setting from the Spanning Tree
Protocol Configuration menu. The following screen
appears:
Using the Console Interface
Gigabit Ethernet Switch User's Guide
51
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