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Advanced Management
Page 7-6
*BC = Broadcast
**MC= Multicast
Configuring Switch Priority
To configure switch priority:
1
Open the Spanning Tree Configuration Menu
by typing s in the Configuration Menu.
2
Type p in the Spanning Tree Configuration
Menu.
3
Enter the switch priority value.
Forward
Delay
Controls the number of seconds a bridge must wait
before it changes a link from a listening to a learning
state and before it changes the link from a learning to a
forwarding state.
The default value is 15 seconds. (This means that after
a link [or the entire switch] goes down and connectivity
is re-established, the switch waits twice the amount of
the Forward Delay time before it begins to forward
traffic again.
The range of permitted values is between 4 and 30
seconds.
Note:
A shorter Forward Delay value enables the
switch to recover a link more quickly but may reduce
overall network stability. A longer Forward Delay value
may prevent the switch from bringing up an unstable
link. An unstable link can threaten overall network
stability because each time the link changes between
forwarding and non-forwarding states, the entire
Spanning Tree topology must be recalculated.
Storm
Threshold
The threshold for detecting the BC* storm in the
network.
Storm
Duration
Controls the amount of time the switch sees the BC/
MC** traffic before it decides on the BC/MC storm.
Setting Description
6216M Book Page 6 Wednesday, January 27, 1999 5:26 PM