Rapid Spanning Tree Settings - Cisco Small Business 200 Series Administration Manual

Spanning Tree

Rapid Spanning Tree Settings

• LAG—Displays the LAG to which the port belongs. If a port is a member of a LAG, the LAG settings
override the port settings.
STEP 4
Rapid Spanning Tree Settings
Rapid Spanning Tree Protocol (RSTP) enables a faster STP convergence without creating forwarding loops.
The RSTP Interface Settings page enables you to configure RSTP per port. Any configuration that is done
on this page is active when the global STP mode is set to RSTP .
To enter RSTP settings:
STEP 1
STEP 2
STEP 3
Activate Protocol Migration is only available after selecting the port that is connected to the
NOTE
bridge partner being tested.
STEP 4
STEP 5
STEP 6
• Interface—Set the interface, and specify the port or LAG where RSTP is to be configured.
• Point to Point Administrative Status—Define the point-to-point link status. Ports defined as Full
Duplex are considered Point-to-Point port links.
Enable
- —This port is an RSTP edge port when this feature is enabled, and is brought to Forwarding
mode quickly (usually within 2 seconds).
Disable
- —The port is not considered point-to-point for RSTP purposes, which means that STP
works on it at regular speed, as opposed to high speed.
Cisco Small Business 200 Series Smart Switch Administration Guide
Click Apply. The interface settings are written to the Running Configuration file.
Click Spanning Tree > STP Status and Global Settings. Enable RSTP.
Click Spanning Tree > RSTP Interface Settings. The RSTP Interface Settings
page appears:
Select a port.
If a link partner is discovered by using STP, click Activate Protocol Migration to
run a Protocol Migration test. This discovers whether the link partner using STP
still exists, and if so whether it has migrated to RSTP. If it still exists as an STP link,
the device continues to communicate with it by using STP. Otherwise, if it has been
migrated to RSTP, the device communicates with it using RSTP.
Select an interface, and click Edit.
Enter the parameters:
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