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Chapter 14 Spanning Tree Protocol
OLT2406 User’s Guide
139
The following table describes the labels in this screen.
Table 41 Advanced Application > Spanning Tree Protocol > MSTP
LABEL
DESCRIPTION
Port
Click
Port
to display the
MSTP Port
).
Status
Click
Status
to display the
MSTP Status
screen (see
).
Active
Select this to activate MSTP on the OLT. Clear this to disable MSTP on the OLT.
Note: You must also activate
Multiple Spanning Tree
in the
Advanced Application >
Spanning Tree Protocol > Configuration
screen to enable MSTP on the OLT.
Hello Time
This is the time interval in seconds between BPDU (Bridge Protocol Data Units) configuration
message generations by the root switch. The allowed range is 1 to 10 seconds.
Max Age
This is the maximum time (in seconds) the OLT can wait without receiving a BPDU before
attempting to reconfigure. All OLT ports (except for designated ports) should receive BPDUs at
regular intervals. Any port that ages out STP information (provided in the last BPDU) becomes
the designated port for the attached LAN. If it is a root port, a new root port is selected from
among the OLT ports attached to the network. The allowed range is 6 to 40 seconds.
Forwarding Delay
This is the maximum time (in seconds) the OLT will wait before changing states. This delay is
required because every switch must receive information about topology changes before it
starts to forward frames. In addition, each port needs time to listen for conflicting information
that would make it return to a blocking state; otherwise, temporary data loops might result.
The allowed range is 4 to 30 seconds. As a general rule:
Note: 2 * (Forward Delay - 1) >= Max Age >= 2 * (Hello Time + 1)
Maximum hops
Enter the number of hops (between 1 and 255) in an MSTP region before the BPDU is discarded
and the port information is aged.
Configuration
Name
Enter a descriptive name (up to 32 characters) of an MST region.
Revision Number
Enter a number to identify a region’s configuration. Devices must have the same revision
number to belong to the same region.
Apply
Click
Apply
to save your changes to the OLT’s run-time memory. The OLT loses these changes
if it is turned off or loses power, so use the
Save
link on the top navigation panel to save your
changes to the non-volatile memory when you are done configuring.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Instance
Use this section to configure MSTI (Multiple Spanning Tree Instance) settings.
Instance
Enter the number you want to use to identify this MST instance on the OLT.
Note: The OLT supports instance numbers 0-16.
Bridge Priority
Set the priority of the OLT for the specific spanning tree instance. The lower the number, the
more likely the OLT will be chosen as the root bridge within the spanning tree instance.
Enter priority values between 0 and 61440 in increments of 4096 (thus valid values are 4096,
8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864, 40960, 45056, 49152, 53248, 57344 and
61440).
VLAN Range
Enter the start of the VLAN ID range that you want to add or remove from the VLAN range edit
area in the
Start
field. Enter the end of the VLAN ID range that you want to add or remove
from the VLAN range edit area in the
End
field.
Next click:
•
Add
- to add this range of VLAN(s) to be mapped to the MST instance.
•
Remove
- to remove this range of VLAN(s) from being mapped to the MST instance.
•
Clear
- to remove all VLAN(s) from being mapped to this MST instance.
Enabled VLAN(s)
This field displays which VLAN(s) are mapped to this MST instance.
Port
This field displays the port number. * means all ports.
Содержание OLT2406
Страница 4: ...Document Conventions OLT2406 User s Guide 4 Desktop Laptop Switch IP Phone Smart T V...
Страница 32: ...Table of Contents OLT2406 User s Guide 32 Index 758...
Страница 33: ...33 PART I Introduction and Hardware Installation...
Страница 62: ...Chapter 3 Maintenance OLT2406 User s Guide 62 Figure 36 Slide the Power Module In and Tighten the Thumbscrews...
Страница 63: ...63 PART II Web Configurator...
Страница 118: ...Chapter 9 VLAN OLT2406 User s Guide 118 Figure 74 Advanced Application VLAN VLAN Status Static VLAN...
Страница 138: ...Chapter 14 Spanning Tree Protocol OLT2406 User s Guide 138 Figure 86 Advanced Application Spanning Tree Protocol MSTP...
Страница 161: ...Chapter 18 Link Aggregation OLT2406 User s Guide 161 Your trunk group 1 T1 configuration is now complete...
Страница 179: ...Chapter 21 Classifier OLT2406 User s Guide 179 Figure 112 Classifier Example...
Страница 182: ...Chapter 22 Policy Rule OLT2406 User s Guide 182 Figure 113 Advanced Application Policy Rule...
Страница 186: ...Chapter 22 Policy Rule OLT2406 User s Guide 186 Figure 114 Policy Example...
Страница 210: ...Chapter 25 Multicast OLT2406 User s Guide 210 Figure 126 Advanced Application Multicast Multicast Setting MVR...
Страница 248: ...Chapter 28 Loop Guard OLT2406 User s Guide 248 Figure 151 Advanced Application Loop Guard...
Страница 393: ...393 PART III CLI Commands...
Страница 581: ...Chapter 78 VoIP OLT2406 User s Guide 581...
Страница 725: ...725 PART IV Troubleshooting Specifications Appendices and Index...