Netgear S3300-28X-PoE+ (GS728TXP) - ProSAFE S3300 Smart Switch Series 管理者ガイド

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Configuring Switching 
133
 S3300 Smart Switch
STP Configuration
The STP Configuration screen contains fields for enabling STP on the switch. 
To configure STP settings on the switch:
1. 
Select Switching 
 STP 
 Basic 
 STP Configuration
2. 
Next to Spanning Tree State, specify whether to enable or disable Spanning Tree operation 
on the switch.
3. 
From the STP Operation Mode field, specify the Force Protocol Version parameter for the 
switch. 
Options are:
STP (Spanning Tree Protocol). IEEE 802.1D
RSTP (Rapid Spanning Tree Protocol). IEEE 802.1w
MSTP (Multiple Spanning Tree Protocol). IEEE 802.1s
4. 
Specify the configuration name and revision level.
Configuration Name. Name used to identify the configuration currently being used. It 
can be up to 32 alphanumeric characters.
Configuration Revision Level. Number used to identify the configuration currently 
being used. The values allowed are between 0 and 65535. The default value is 0.
5. 
Next to Forward BPDU while STP Disabled, select Enable to allow spanning tree BPDUs to 
be forwarded while spanning-tree is disabled on the switch, or select Disable to prevent 
BPDUs from being forwarded when STP is disabled on the switch. 
6. 
Click the Apply button. 
The following table describes the STP status information available on the screen.
Table 44.  STP status information
 
Field
Description 
Configuration Digest Key
This is used to identify the configuration currently being used.
Bridge Identifier
The bridge identifier for the CST. It is made up using the bridge priority 
and the base MAC address of the bridge.
Time Since Topology Change The time in seconds since the topology of the CST last changed.
Topology Change Count
The number of times the topology has changed for the CST.
Topology Change
The value of the topology change parameter for the switch indicating if 
a topology change is in progress on any port assigned to the CST. The 
value is either True or False.
Designated Root
The bridge identifier of the root bridge. It is made up from the bridge 
priority and the base MAC address of the bridge.
Root Path Cost
Path cost to the Designated Root for the CST.