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VLAN advanced configuration
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CIST port status display parameters
The following section describes the display parameters for the CIST port status located at
Configuration,
Spanning Tree, MSTP, CIST Port Status
tab
.
Variable definitions
The following table describes the variables and values displayed on the MSTP CIST Port Status
panel.
RSTP configuration
RSTP provides rapid recovery of connectivity when a bridge/bridge port or a local area network
(LAN) fails. RSTP avoids the delay by calculating an alternate root port and immediately
switching over to it, if available. Using RSTP, the switch immediately brings the alternate port to
the forwarding state without the delays caused by the listening and learning states.
Prerequisites to RSTP configuration
•
You must disable MSTP and enable RSTP before configuring RSTP. See
configuration parameters (page 117)
Variable
Value
Port
Displays the port number.
Port Name
Displays the port name.
Designated Root
Displays the unique Bridge Identifier of the Bridge recorded as the Root for
the segment to which the port is attached.
Designated Bridge
Displays the Bridge Identifier which this port considers to be the
Designated Bridge for this port segment.
Designated Port
Displays the Port Identifier on the Designated Bridge for this port segment.
Designated Cost
Displays the path cost of the Designated Port of the segment connected to
this port.
Regional Root
Displays the unique Bridge Identifier recorded as the CIST Regional Root
Identifier in the transmitted configuration BPDUs.
Regional Path Cost
Displays the port contribution to the path cost of paths towards the CIST
Regional Root, which includes this port.
Type
Displays the operational point-to-point status of the LAN segment
attached to this port. The status indicates whether a port is considered to
have a point-to-point connection or Shared media.
Role
Displays the current role of the port as defined by the Spanning Tree
Protocol (STP).
Port State
Displays the current state of the port as defined by the application of the
STP.
Summary of Contents for BSG12aw 1.0
Page 14: ...14 Introduction NN47928 500 NN47928 500 ...
Page 22: ...22 WAN configuration NN47928 500 NN47928 500 ...
Page 54: ...54 SIP configuration NN47928 500 NN47928 500 ...
Page 80: ...80 QoS configuration NN47928 500 NN47928 500 ...
Page 82: ...82 Advanced configuration NN47928 500 NN47928 500 ...
Page 110: ...110 LAN advanced configuration NN47928 500 NN47928 500 ...
Page 144: ...144 IP routing advanced configuration NN47928 500 NN47928 500 ...
Page 152: ...152 DHCP advanced configuration NN47928 500 NN47928 500 ...
Page 164: ...164 QoS advanced configuration NN47928 500 NN47928 500 ...
Page 176: ...176 VPN advanced configuration NN47928 500 NN47928 500 ...
Page 200: ...200 Port management advanced configuration NN47928 500 NN47928 500 ...