Specifications

STB NIP 2311 Services
160
EIO0000000051 6/2010
RSTP Port Statistics
Introduction
This topic shows the RSTP port statistics page and describes the statistics.
NOTE: Elsewhere in this section is a list of Modbus registers that correspond to port
statistics (see page 161).
How to View Port Statistics
There is a link to the RSTP Port Statistics page on the Diagnostics page:
Port Statistics Descriptions
The statistics on the page are read-only:
Port Number Select a port to display its statistics.
Port Status Port State: the operational state of the RSTP port
Role: the role of the port in the network:
z Disabled: not active
z Root: the port that points to the root bridge
z Designated: the port that can send messages on the segment to
which it is connected
z Alternate: a blocked port that can be activated if there is a topology
change
z Backup: a blocked port on the same device that can be activated if
there is a topology change
Priority: the priority of the port
Port Path Cost: the contribution of this port to the path cost of paths to
the root bridge (including this port)
Designated Port ID: designated port ID
Received RSTs: number of received RSTs
Transmitted RSTs: number of transmitted RSTs