NETGEAR GSM7212P User Manual page 118

attempted to be set to any value between 0 and 4095, it will be set to 0. The default
priority is 32768.
Bridge Max Age (secs) - Specifies the bridge maximum age time for the Common
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and Internal Spanning Tree (CST), which indicates the amount of time in seconds a
bridge waits before implementing a topological change. The valid range is 6–40, and
the value must be less than or equal to (2 * Bridge Forward Delay) – 1 and greater
than or equal to 2 * (Bridge Hello Time +1). The default value is 20.
Bridge Hello Time (secs) - Specifies the bridge Hello time for the Common and
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Internal Spanning Tree (CST), which indicates the amount of time in seconds a root
bridge waits between configuration messages. The value is fixed at 2 seconds. The
value must be less than or equal to (Bridge Max Age / 2) - 1. The default hello time
value is 2.
Bridge Forward Delay (secs) - Specifies the bridge forward delay time, which
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indicates the amount of time in seconds a bridge remains in a listening and learning
state before forwarding packets. The value must be greater or equal to (Bridge Max
Age / 2) + 1. The time range is from 4 seconds to 30 seconds. The default value is 15.
Spanning Tree Maximum Hops - Specifies the maximum number of bridge hops the
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information for a particular CST instance can travel before being discarded. The valid
range is 1–127.
Spanning Tree Tx Hold Count - Configures the maximum number of bpdus the bridge
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is allowed to send within the hello time window. The default value is 6.
Field
Bridge identifier
Time since topology change
Topology change count
Topology change
Designated root
Root Path Cost
Root Port Identifier
Max Age(secs)
Forward Delay(secs)
Web Management User Guide
Description
The bridge identifier for the CST. It is made up using
the bridge priority and the base MAC address of the
bridge.
The time in seconds since the topology of the CST
last changed.
Number of times topology has changed for the CST.
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. It takes a value if
True or False.
The bridge identifier of the root bridge. It is made up
from the bridge priority and the base MAC address of
the bridge.
Path Cost to the Designated Root for the CST.
Port to access the Designated Root for the CST.
Path Cost to the Designated Root for the CST.
Derived value of the Root Port Bridge Forward Delay
parameter.
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