Configuring the Spanning Tree Protocol
Configuring STP Status and Global Settings
Cisco Small Business 200 1.1 Series Smart Switch Administration Guide 184
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Long
—Specifies the range 1 through 200,000,000 for port path costs.
Bridge Settings:
• Priority—Sets the bridge priority value. After exchanging BPDUs, the device
with the lowest priority becomes the Root Bridge. In the case that all bridges
use the same priority, then their MAC addresses are used to determine
which is the Root Bridge. The bridge priority value is provided in increments
of 4096. For example, 4096, 8192, 12288, and so on.
• Hello Time—Set the interval in seconds that a Root Bridge waits between
configuration messages. The range is 1 to 10 seconds.
• Max Age—Set the interval in seconds that the switch can wait without
receiving a configuration message, before attempting to redefine its own
configuration.
• Forward Delay—Set the interval in seconds that a bridge remains in a
learning state before forwarding packets. For more information, refer to
Defining Spanning Tree Interface Settings.
Designated Root:
• Bridge ID—The bridge priority concatenated with the MAC address of the
switch.
• Root Bridge ID—The Root Bridge priority concatenated with the MAC
address of the Root Bridge.
• Root Port—The port that offers the lowest cost path from this bridge to the
Root Bridge. (This is significant when the bridge is not the root.)
• Root Path Cost—The cost of the path from this bridge to the root.
• Topolo gy Changes C ounts—The total number of STP topology changes
that have occurred.
• Last Topology Change—The time interval that elapsed since the last
topology change occurred. The time is displayed in a days/hours/minutes/
seconds format.
STEP 3 Click Apply. The Running Configuration file is updated. with the STP Global
settings.
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