Alcatel-Lucent 7210 SAS M Service Guide

Show, Clear, Debug Commands
Page 906 7210 SAS M Services Guide
Topology change
Specifies whether a topology change is currently in progress.
Last Top. change
Specifies the time (in hundredths of a second) since the last time a
topology change was detected by the Spanning Tree Protocol instance
associated with this service.
Top. change count
Specifies the total number of topology changes detected by the Span-
ning Tree Protocol instance associated with this service since the man-
agement entity was last reset or initialized.
Root bridge-id
Specifies the bridge identifier of the root of the spanning tree as deter-
mined by the Spanning Tree Protocol instance associated with this ser-
vice. This value is used as the Root Identifier parameter in all
Configuration BPDUs originated by this node.
Root path cost
Specifies the cost of the path to the root bridge as seen from this
bridge.
Root forward delay
Specifies how fast the root changes its state when moving toward the
forwarding state.
Root hello time
Specifies the amount of time between the transmission of configura-
tion BPDUs.
Root max age
Specifies the maximum age of Spanning Tree Protocol information
learned from the network on any port before it is discarded.
Root priority
This object specifies the priority of the bridge that is currently selected
as root-bridge for the network.
Root port
Specifies the port number of the port which offers the lowest cost path
from this bridge to the root bridge.
SAP Identifier
The ID of the access port where this SAP is defined.
BPDU encap
Specifies the type of encapsulation used on BPDUs sent out and
received on this SAP.
Port Number
Specifies the value of the port number field which is contained in the
least significant 12 bits of the 16-bit port ID associated with this SAP.
Priority
Specifies the value of the port priority field which is contained in the
most significant 4 bits of the 16-bit port ID associated with this SAP.
Cost
Specifies the contribution of this port to the path cost of paths towards
the spanning tree root which include this port.
Designated Port
Specifies the port identifier of the port on the designated bridge for this
port's segment.
Designated Bridge
Specifies the bridge identifier of the bridge which this port considers to
be the designated bridge for this port's segment.
Label Description (Continued)

Alcatel-Lucent 7210 SAS M Specifications

General

Brand	Alcatel-Lucent
Model	7210 SAS M
Category	Switch
Language	English