Cisco 500 series Administration Manual page 245

Configuring the Spanning Tree Protocol
Configuring Rapid Spanning Tree Settings
STEP 7
Cisco 500 Series Stackable Managed Switch Administration Guide
Designated
-
LAN, which provides the lowest cost path from the LAN to the Root
Bridge.
Alternate
- —Provides an alternate path to the Root Bridge from the root
interface.
Backup
- —Provides a backup path to the designated port path toward the
Spanning Tree leaves. This provides a configuration in which two ports
are connected in a loop by a point-to-point link. Backup ports are also
used when a LAN has two or more established connections to a shared
segment.
Disabled
- —The port is not participating in Spanning Tree.
• Mode—Displays the current Spanning Tree mode: Classic STP or RSTP.
• Fast Link Operational Status—Displays whether the Fast Link (Edge Port) is
enabled, disabled, or automatic for the interface. The values are:
- Enabled —Fast Link is enabled.
Disabled
- —Fast Link is disabled.
Auto
- —Fast Link mode is enabled a few seconds after the interface
becomes active.
• Port Status—Displays the RSTP status on the specific port.
Disabled
- —STP is currently disabled on the port.
Blocking
- —The port is currently blocked, and it cannot forward traffic or
learn MAC addresses.
Listening
- —The port is in Listening mode. The port cannot forward traffic,
and cannot learn MAC addresses.
Learning
- —The port is in Learning mode. The port cannot forward traffic,
however it can learn new MAC addresses.
- Forwarding
traffic and learn new MAC addresses.
Click Apply. The Running Configuration file is updated.
—The interface through which the bridge is connected to the
—The port is in Forwarding mode. The port can forward
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