Viewing A List Of Per-Port Multiple Spanning Tree Instances - Siemens RUGGEDCOM ROX II User Manual

RUGGEDCOM ROX II
CLI User Guide
Parameter
cost
desig-bridge-priority
desig-bridge-mac
Section 5.36.7.2

Viewing a List of Per-Port Multiple Spanning Tree Instances

To view a list of the Multiple Spanning Tree Instances (MSTIs) for switched Ethernet ports or Ethernet trunk
interfaces, type:
• For switched Ethernet ports:
show running-config interface switch slot port spanning-tree msti
Where:
▪ slot is the name of the module location
▪ port is the port number (or a list of ports, if aggregated in a port trunk) for the module
• For Ethernet trunk interfaces:
show running-config interface trunk id spanning-tree msti
Where:
▪ id is the ID given to the interface
If instances have been configured, a table or list similar to the following example appears:
ruggedcom# show running-config interface trunks 1 spanning-tree msti | tab
INSTANCE MSTP
ID PRIORITY
------------------------------------------
1 128
2 128
!
Viewing a List of Per-Port Multiple Spanning Tree
Instances
STP COST RSTP COST
auto-cost auto-cost
auto-cost auto-cost
Description
it is connected to.</listitem> <listitem>Root: The single port on
the bridge, which provides connectivity towards the root bridge.</
listitem> <listitem>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.</listitem> <listitem>Alternate: The port is attached to a bridge
that provides connectivity to the root bridge. It is not used but is
standing by.</listitem> <listitem>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
towards the Common Spanning Tree (CST) root bridge (i.e. this
port is the root port for the Common Spanning Tree Instance).</
listitem></itemizedlist>
The total cost of the path to the root bridge composed of the sum
of the costs of each link in the path. If custom costs have not been
configured, 1Gbps ports will contribute a cost of four, 100 Mbps
ports will contribute 19 and 10 Mbps ports will contribute 100. For
the Common and Internal Spanning Tree (CIST) instance of Multiple
Spanning Tree Protocol (MSTP), this is an external root path cost,
which is the cost of the path from the Internal Spanning Tree (IST)
root (i.e. regional root) bridge to the Common Spanning Tree (CST)
root (i.e. network "global" root) bridge.
The bridge identifier of this bridge.
Synopsis: A string
The bridge identifier of this bridge.
Chapter 5
Setup and Configuration
535