Black Box LPB2910A, User Manual

Page: 113 / 367

Publication date: Sept, 2015
Revision A1
101
Figure 2-­‐8.1: The STP Bridge Configuration
Parameter description:
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: