Clearing Spanning Tree Protocol Statistics - Siemens RX1500 User Manual

RUGGEDCOM ROX II
User Guide
Parameter
STP Role
STP Cost
Desig Bridge Priority
Desig Bridge MAC
Oper Edge
RX RSTs
TX RSTs
RX Configs
TX Configs
RX TCNs
TX TCNs
Section 5.34.12

Clearing Spanning Tree Protocol Statistics

To clear all Spanning Tree Protocol statistics, do the following:
Clearing Spanning Tree Protocol Statistics
Description
Describes the status of this interface in the spanning tree:
• Disabled: Spanning Tree Protocol (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.
Synopsis: ----, root, designated, alternate, backup, master
The role of this port in the spanning tree:
• Designated: The port is designated for (i.e. carries traffic towards the root for) the Local
Area Network (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 Multiple Spanning Tree Protocol (MSTP). The port is a Multiple
Spanning Tree (MST) region boundary port and the single port on the bridge, which
provides connectivity for the Multiple Spanning Tree Instance (MSTI) towards the
Common Spanning Tree (CST) root bridge (i.e. this port is the root port for the Common
Spanning Tree Instance).
The cost offered by this port. If the Bridge RSTP Parameters Cost Style is set to STP,
1Gbps ports will contribute a cost of four, 100 Mbps ports will contribute 19 and 10 Mbps
ports contribute 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 even if the Cost style is set to RSTP, a port that migrates to STP will
have its cost limited to a maximum of 65535.
Provided on the root ports of the designated bridges, the bridge identifier of the bridge this
port is connected to.
Provided on the root ports of the designated bridges, the bridge identifier of the bridge this
port is connected to.
Whether or not the port is operating as an edge port.
The number of Rapid Spanning Tree Protocol (RSTP) configuration messages received on
this port.
The number of Rapid Spanning Tree Protocol (RSTP) configuration messages transmitted
on this port.
The number of Spanning Tree Protocol (STP) configuration messages received on this port.
The number of Spanning Tree Protocol (STP) configuration messages transmitted on this
port.
The number of configuration change notification messages received on this port.
Excessively high or rapidly increasing counts signal network problems.
The number of configuration messages transmitted from this port.
Chapter 5
Setup and Configuration
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