Gigabit Ethernet Switch User’s Guide
Using the Console Interface
51
♦
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: