Delta DVS Series User Manual

DVS Series Managed Industrial Ethernet Switches User’s Manual
3-50
Item Description
Port Role
The type of role of the interface in the spanning tree: One of the
following options is displayed:
 Root
 Master
 Designated
 Alternate
 Backup
 Disabled
Designated Root
The identifier of the root bridge of CIST. The identifier consists of the
bridge priority and the base MAC address of the STP bridge.
Designated Cost
The path cost that is advertized by the designated port to the LAN.
Note:
Interfaces with a lower cost are less likely to be blocked if
STP detects loops.
Root Priority The priority of the CST root. The default root priority is 32768.
Designated Bridge
The identifier of the bridge with the designated port. The identifier
consists of the bridge priority and the base MAC address of the STP
bridge.
Designated Port
The port identifier on the designated bridge that offers the lowest
cost to the LAN. The identifier consists of the port priority and the
interface number.
Note:
LAGs have their own interface number, starting from 25 in
decimal value (which is 19 in hexadecimal value).
Note:
If the port is the designated port, the identifiers in the Port
ID and Designated Port fields are identical. If the port is
not the designated port, that is, there is a root port and an
alternate port, the identifiers in the Port ID and Designated
Port fields are different.
Edge Port
The edge port status of the interface:
 Enabled: The interface is an edge port.
 Disabled: The interface is not an edge port.
Point-to-Point MAC
The type of connection:
 True: The connection is a point-to-point connection.
 False: The connection is a shared LAN connection.
CST Regional Root
The identifier of the regional root bridge of CIST. The identifier
consists of the bridge priority and the base MAC address of the STP
bridge.
Regional Root
Priority
The priority of the regional root. The default regional root priority is
32768.
Regional Path Cost The path cost to the regional root.
CST Path Cost The path cost to the CST tree regional root.

Delta DVS Series Specifications

General

Brand	Delta
Model	DVS Series
Category	Switch
Language	English