ZyXEL NetAtlas User Guide - Page 180

Switch Configuration > STP: MSTP continued

Page 180 highlights

Chapter 14 Switch Configuration Table 87 Switch Configuration > STP: MSTP (continued) LABEL DESCRIPTION Max Age (sec) This is the maximum time (in seconds) a device can wait without receiving a BPDU before attempting to reconfigure. All device 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 device ports attached to the network. The allowed range is 6 to 40 seconds (20 is the default). Forward Delay (sec) This is the maximum time (in seconds) a device will wait before changing states. This delay is required because every device 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 (15 is the default). Config 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. Max 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. Apply Click Apply to save your changes. Copy to... Click the Copy to.. button to copy the configuration from the device that you are currently configuring to other device(s) of the same model. MST ID This field displays the ID of an MST instance. Priority This field displays the priority of the device for the MST instance. VLAN This field displays the VID (or VID ranges) to which the MST instance is mapped. New... Click New... to create a new MST instance. Modify... Select an MST instance and click the Modify... button to open a screen where you can change the settings. Delete Select an MST instance and then click the Delete button to remove it. Copy to... Click the Copy to.. button to copy the configuration from the device that you are currently configuring to other device(s) of the same model. Close Click Close to exit this screen. 180 NetAtlas EPON Manager User's Guide

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Chapter 14 Switch Configuration
NetAtlas EPON Manager User’s Guide
180
Max Age
(sec)
This is the maximum time (in seconds) a device can wait without receiving
a BPDU before attempting to reconfigure. All device 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 device ports attached to the network. The
allowed range is 6 to 40 seconds (20 is the default).
Forward
Delay (sec)
This is the maximum time (in seconds) a device will wait before changing
states. This delay is required because every device 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 (15 is the default).
Config 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.
Max 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.
Apply
Click
Apply
to save your changes.
Copy to...
Click the
Copy to..
button to copy the configuration from the device that
you are currently configuring to other device(s) of the same model.
MST ID
This field displays the ID of an MST instance.
Priority
This field displays the priority of the device for the MST instance.
VLAN
This field displays the VID (or VID ranges) to which the MST instance is
mapped.
New...
Click
New...
to create a new MST instance.
Modify...
Select an MST instance and click the
Modify...
button to open a screen
where you can change the settings.
Delete
Select an MST instance and then click the
Delete
button to remove it.
Copy to...
Click the
Copy to..
button to copy the configuration from the device that
you are currently configuring to other device(s) of the same model.
Close
Click
Close
to exit this screen.
Table 87
Switch Configuration > STP: MSTP (continued)
LABEL
DESCRIPTION