Netgear S3300-28X-PoE+ (GS728TXP) - ProSAFE S3300 Smart Switch Series 管理者ガイド
Configuring Switching
139
S3300 Smart Switch
MST Configuration
Use the Spanning Tree MST Configuration screen to configure Multiple Spanning Tree
(MST) on the switch.
(MST) on the switch.
To configure an MST instance:
1.
Select Switching
STP
Advanced
MST Configuration.
2.
Configure the MST values:
•
MST ID. Specify the ID of the MST to create. Valid values for this are between 1 and
4094.
4094.
•
Priority. Specifies the bridge priority value for the MST. When switches or bridges are
running STP, each is assigned a priority. After exchanging BPDUs, the switch with the
lowest priority value becomes the root bridge. The bridge priority is a multiple of 4096.
If you specify a priority that is not a multiple of 4096, the priority is automatically set to
the next lowest priority that is a multiple of 4096. For example, if the priority is
attempted to be set to any value between 0 and 4095, it will be set to 0. The default
priority is 32768.The valid range is 0–61440.
running STP, each is assigned a priority. After exchanging BPDUs, the switch with the
lowest priority value becomes the root bridge. The bridge priority is a multiple of 4096.
If you specify a priority that is not a multiple of 4096, the priority is automatically set to
the next lowest priority that is a multiple of 4096. For example, if the priority is
attempted to be set to any value between 0 and 4095, it will be set to 0. The default
priority is 32768.The valid range is 0–61440.
•
VLAN ID. The menu contains all VLANs configured on the switch. Select a VLAN to
associate with the MST instance.
associate with the MST instance.
3.
Click the Add button.
For each configured instance, the information described in the following table displays on the
screen.
screen.
Table 49. MST instance information
Field
Description
Bridge Identifier
The bridge identifier for the selected MST instance. It is made up using the bridge
priority and the base MAC address of the bridge.
priority and the base MAC address of the bridge.
Time Since
Topology
Change
Topology
Change
The total amount of time since the topology of the selected MST instance last
changed. The time is displayed in hour/minute/second format, for example, 5 hours,
10 minutes, and 4 seconds.
changed. The time is displayed in hour/minute/second format, for example, 5 hours,
10 minutes, and 4 seconds.
Topology
Change Count
Change Count
The total number of times topology has changed for the selected MST instance.
Topology
Change
Change
Indicates whether a topology change is in progress on any port assigned to the
selected MST instance. The possible values are True or False.
selected MST instance. The possible values are True or False.
Designated Root The bridge identifier of the root bridge, which is made up from the bridge priority and
the base MAC address of the bridge.
Root Path Cost
The path cost to the Designated Root for this MST instance.
Root Port
Indicates the port to access the Designated Root for this MST instance.
To delete an MST instance:
1.
Select the check box next to the instance.
2.
Click the Delete button.