Siemens RUGGEDCOM ROX II, User Manual

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RUGGEDCOM ROX II
CLI User Guide
Chapter 14
Network Redundancy
Viewing Per-Port Multiple Spanning Tree Instance Statistics 649
Section 14.3.7.1
Viewing Per-Port Multiple Spanning Tree Instance Statistics
To view Multiple Spanning Tree Instance (MSTI) statistics for individual switched Ethernet ports and/or Ethernet
trunk interfaces, type:
show switch spanning-tree port-msti-id
A table similar to the following example appears:
ruggedcom# show switch spanning-tree port-msti-id
DESIG
INSTANCE STP STP BRIDGE
ID SLOT PORT STATE ROLE COST PRIORITY DESIG BRIDGE MAC
---------------------------------------------------------------------------
1
swport 1 disabled ---- 0 0 00:00:00:00:00:00
swport 2 disabled ---- 0 0 00:00:00:00:00:00
swport 3 disabled ---- 0 0 00:00:00:00:00:00
swport 4 disabled ---- 0 0 00:00:00:00:00:00
swport 5 disabled ---- 0 0 00:00:00:00:00:00
swport 6 disabled ---- 0 0 00:00:00:00:00:00
2
swport 1 disabled ---- 0 0 00:00:00:00:00:00
swport 2 disabled ---- 0 0 00:00:00:00:00:00
swport 3 disabled ---- 0 0 00:00:00:00:00:00
swport 4 disabled ---- 0 0 00:00:00:00:00:00
swport 5 disabled ---- 0 0 00:00:00:00:00:00
swport 6 disabled ---- 0 0 00:00:00:00:00:00
.
.
.
This table provides the following information:
Parameter Description
instance-id Synopsis: A 32-bit signed integer between 1 and 16
The Multiple Spanning Tree Protocol (MSTP) Instance ID.
slot Synopsis: { { sm, lm1, lm2, lm3, lm4, lm5, lm6, swport, eth, serport, celport, wlanport }
{ trnk } }
The slot of the module that contains this port.
port Synopsis: A 32-bit signed integer between 1 and 16
The port number as seen on the front plate silkscreen of the module.
stp-state Synopsis: { disabled, blocking, listening, learning, forwarding, linkDown, discarding }
The status of this interface in the spanning tree:
• Disabled: The 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.
This parameter is mandatory.
stp-role 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.