Interlogix NS3550-2T-8S User Manual Manual de usuario Pagina 158

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IFS NS3552-8P-2S AND NS3550-2T-8S User Manual
158
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)].
-Maximum: The lower of 40 or [2 x (Forward Delay -1)]
Maximum Hop Count
This defines the initial value of remaining Hops for MSTI information generated at
the boundary of an MSTI region. It defines how many bridges a root bridge can
distribute its BPDU information. Valid values are in the range 6 to 40 hops.
Transmit Hold Count
The number of BPDU's a bridge port can send per second. When exceeded,
transmission of the next BPDU will be delayed. Valid values are in the range 1 to
10 BPDU's per second.
Advanced Settings
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