Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring RSTP (Rev. 03)
Rapid Spanning Tree Protocol (RSTP)
© 2008 Foundry Networks, Inc.
Page 26 of 34
Example
In the following example the DesignatedRoot value indicates that the bridge is the root:
device-name
#
show rapid-spanning-tree interface 1/1/1
PortPriority = 128
PortState = forwarding
PortRole = Designated Port
PortEnable = enabled
PortPathCost = 200000
DesignatedRoot = This bridge is the root
DesignatedCost = 0
DesignatedBridge = This bridge
DesignatedPort = 128.62
FrwrdTransitions = 1
Admin EdgePort = disabled
EdgePort = disabled
AdminLink-Type = Auto
Link-Type = P2P
MigrationTimer = 3
Detected Protocol = RSTP
Displaying the RSTP Configuration and Topology for All Ports
The
show rapid-spanning-tree
command, in Privileged (Enable) mode, displays the current RSTP
parameters settings and the RSTP topology for all ports.
Table 8
and
Table 10
describe the
parameters displayed by the
show rapid-spanning-tree
command.
Command Syntax
device-name
#
show rapid-spanning-tree
Example
device-name
#
show rapid-spanning-tree
Rapid spanning tree
= enabled
ProtocolSpecification
= ieee8021w
Priority
= 32768
TimeSinceTopologyChange
= 4 (Sec)
TopChanges
= 5
DesignatedRoot
= 04096.00:12:F2:11:29:92
RootPort
= 1/1/10
RootCost
= 400000
MaxAge
= 20 (Sec)
HelloTime
= 2 (Sec)
ForwardDelay
= 15 (Sec)
BridgeMaxAge
= 20 (Sec)
BridgeHelloTime
= 2 (Sec)
BridgeForwardDelay
= 15 (Sec)
TxHoldCount
= 3
MigrationTimer
= 3 (Sec)
DetectLineCRCReconfig
= disabled
DetectLineFlapping
= disabled
SpanIgmpFastRecovery
= enabled
===================================================================
Port |Pri|Prt role|State |PCost |DCost |Designated bridge |DPrt FwrdT
--------+---+--------+-------+-------+--------+------------------+----------