User Manual

Configuring Switching Information
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M6100 Web Management User Guide
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
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
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
seconds.
• Spanning Tree Maximum Hops - Specifies the maximum number of bridge hops the
information for a particular CST instance can travel before being discarded. The valid
range is 6–40. The default is 20 hops.
• Spanning Tree Tx Hold Count - Configures the maximum number of bpdus the bridge
is allowed to send within the hello time window. The valid range is 1–10. The default
value is 6.
2. Click Apply to send the updated configuration to the switch. Configuration changes take
effect immediately.
3. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
4. Click Update to update the page with the latest information on the switch.
Field Description
Bridge identifier The bridge identifier for the CST. It is made up using
the bridge priority and the base MAC address of the
bridge.
Time since topology change The time in seconds since the topology of the CST
last changed.
Topology change count Number of times topology has changed for the CST.
Topology change 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.
Designated root The bridge identifier of the root bridge. It is made up
from the bridge priority and the base MAC address of
the bridge.
Root Path Cost Path Cost to the Designated Root for the CST.
Root Port Identifier Port to access the Designated Root for the CST.
Max Age(secs) Path Cost to the Designated Root for the CST.