PLANET IGS-10020HPT - Manual (Page 159)

User’s Manual of IGS-10020HPT
The STP System Configuration screen in Figure 4-7-4 appears.
Figure 4-7-4: STP Bridge Configuration Page Screenshot
The page includes the following fields:
Basic Settings
Object Description

Protocol Version The STP protocol version setting. Valid values are STP, RSTP and MSTP.
 Bridge Priority Controls the bridge priority. Lower numeric values have better priority. The bridge
priority plus the MSTI instance number, concatenated with the 6-byte MAC
address of the switch forms a Bridge Identifier.
For MSTP operation, this is the priority of the CIST. Otherwise, this is the priority
of the STP/RSTP bridge.

Forward Delay The delay used by STP Bridges to transition Root and Designated Ports to
Forwarding (used in STP compatible mode). Valid values are in the range 4 to 30
seconds
-Default: 15
-Minimum: The higher of 4 or [(Max. Message Age / 2) + 1]
-Maximum: 30

Max Age The maximum age of the information transmitted by the Bridge when it is the
Root Bridge. Valid values are in the range 6 to 40 seconds.
-Default: 20
-Minimum: The higher of 6 or [2 x (Hello Time + 1)].
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