ET42202M-S-PD
L2+ Managed 20-port 100Base-FX/1000Base-X SFP + 4-port 10/100/1000Base-T or
100/1000Base-FX SFP Combo Optical Ethernet Switch with AC + DC inputs
www.ot-systems.com Ver.1.0
105
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.
