RUGGEDCOM RSG2488
User Guide
Chapter 5
Setup and Configuration
Viewing Statistics for Port MSTIs
145
Section 5.2.9.2
Viewing Statistics for Port MSTIs
To view statistics for port MSTIs, navigate to
Spanning Tree > View Port MSTI Statistics
. The
Port MSTI
Statistics
form appears.
2
1
Figure 95: Port MSTI Statistics Form
1.
Port(s)
2.
Status
3.
Role
4.
Cost
5.
Designated Bridge ID
This table displays the following information:
Parameter
Description
Port(s)
Synopsis:
Any combination of numbers valid for this parameter
The port number as seen on the front plate silkscreen of the switch.
Status
Synopsis:
{ Disabled, Listening, Learning, Forwarding, Blocking, Link Down, Discarding }
tatus of this port in Spanning Tree. This may be one of the following:
•
Disabled
- STP is disabled on this port.
•
Link Down
- STP is enabled on this port but the link is down.
•
Discarding
- The link is not used in the STP topology but is standing by.
•
Learning
- The port is learning MAC addresses in order to prevent flooding when it
begins forwarding traffic.
•
Forwarding
- The port is forwarding traffic.
Role
Synopsis:
{ , Root, Designated, Alternate, Backup, Master }
Role of this port in Spanning Tree. This may be one of the following:
•
Designated
- The port is designated for (i.e. carries traffic towards the root for) the LAN it
is connected to.
•
Root
- The single port on the bridge, which provides connectivity towards the root bridge.
•
Backup
- The port is attached to a LAN that is serviced by another port on the bridge. It is
not used but is standing by.
•
Alternate
- The port is attached to a bridge that provides connectivity to the root bridge. It
is not used but is standing by.
•
Master
- Only exists in MSTP. The port is an MST region boundary port and the single
port on the bridge, which provides connectivity for the Multiple Spanning Tree Instance
towards the Common Spanning Tree root bridge (i.e. this port is the root port for the
Common Spanning Tree Instance).
Cost
Synopsis:
0 to 4294967295
Cost offered by this port. If the Bridge RSTP Parameters Cost Style is set to STP, 1Gbps
ports will contribute 4, 100 Mbps ports will contribute 19 and 10 Mbps ports contribute a cost
of 100. If the Cost Style is set to RSTP, 1Gbps will contribute 20,000, 100 Mbps ports will
contribute a cost of 200,000 and 10 Mbps ports contribute a cost of 2,000,000. Note that
