Vidipac VSW7242, User Manual, Page: 92 / 288

92
Basic Settings
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 transit Root and Designated Ports to Forwarding (used in STP
compatible mode). Valid values are in the range 4 to 30 seconds.
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, and MaxAge must be <= (FwdDelay-1)*2.
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 to. 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
This
section descript the advanced settings of the Spanning Tree Protocol.
Edge Port BPDU Filtering
Control whether a port explicitly configured as Edge will transmit and receive BPDUs.
Edge Port BPDU Guard
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.
Port Error Recovery