• Bridge Priority
• Hello Time
•
Forward Delay
•
Max Age
• Maximum Hop Count
•
Transmit Hold Count
Advanced Settings
Object
•
Edge Port BPDU
Filtering
•
Edge Port BPDU Guard
• Port Error Recovery
•
Port Error Recovery
User's Manual of GS-5220 PoE Series Managed Switch
RSTP (IEEE 802.2w Rapid Spanning Tree Protocol)
MSTP (IEEE 802.1s Multiple Spanning Tree Protocol)
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.
The interval between sending STP BPDU's. Valid values are in the range 1 to 10
seconds, default is 2 seconds
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
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)]
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.
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.
Description
Control whether a port explicitly configured as Edge will transmit and receive
BPDUs.
Control whether a port explicitly configured as Edge will disable itself upon
reception of a BPDU. The port will enter the error-disabled state, and will be
removed from the active topology.
Control whether a port in the error-disabled state automatically will be enabled
after a certain time. If recovery is not enabled, ports have to be disabled and
re-enabled for normal STP operation. The condition is also cleared by a system
reboot.
The time that has to pass before a port in the error-disabled state can be
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