ZyXEL Communications OLT2406, User Manual

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Chapter 14 Spanning Tree Protocol
OLT2406 User’s Guide
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Note: This screen is only available after you activate MSTP on the OLT.
Figure 88 Advanced Application > Spanning Tree Protocol > Status: MSTP
The following table describes the labels in this screen.
Table 43 Advanced Application > Spanning Tree Protocol > Status: MSTP
LABEL DESCRIPTION
Configuration Click Configuration to specify which STP mode you want to activate. Click MSTP to edit MSTP
settings on the OLT.
CST This section describes the Common Spanning Tree settings.
Bridge Root refers to the base of the spanning tree (the root bridge). Our Bridge is this switch. This OLT
may also be the root bridge.
Bridge ID This is the unique identifier for this bridge, consisting of bridge priority plus MAC address. This ID
is the same for
Root and Our Bridge if the OLT is the root switch.
Hello Time
(second) This is the time interval (in seconds) at which the root switch transmits a configuration
message. The root bridge determines Hello Time, Max Age and Forwarding Delay.
Max Age (second) This is the maximum time (in seconds) the OLT can wait without receiving a configuration
message before attempting to reconfigure.
Forwarding Delay
(second) This is the time (in seconds) the root switch will wait before changing states (that is, listening to
learning to forwarding).
Cost to Bridge This is the path cost from the root port on this OLT to the root switch.
Port ID This is the priority and number of the port on the OLT through which this OLT must
communicate with the root of the Spanning Tree.
Configuration
Name This field displays the configuration name for this MST region.