Linksys SRW2008 User Manual page 78

WebView Switches
Role. Indicates the port role assigned by the STP algorithm in order to provide to STP paths. The possible field
values are:
• Root. Provides the lowest cost path to forward packets to root switch.
• Designated. Indicates that the port or LAG via which the designated switch is attached to the LAN.
• Alternate. Provides an alternate path to the root switch from the root interface.
• Backup. Provides a backup path to the designated port path toward the Spanning Tree leaves. Backup
ports occur only when two ports are connected in a loop by a point-to-point link. Backup ports also occur
when a LAN has two or more connections connected to a shared segment.
• Disabled. Indicates the port is not participating in the Spanning Tree.
Mode. Indicates the current Spanning Tree mode. The Spanning Tree mode is selected in the Global STP screen.
The possible field values are:
• Classic STP. Indicates that Classic STP is enabled on the device.
• Rapid STP. Indicates that Rapid STP is enabled on the device.
• Multiple STP. Indicates that Multiple STP is enabled on the device.
Fast Link. Indicates if Fast Link is enabled or disabled for the port or LAG. If Fast Link is enabled for a port, the
port is automatically placed in the forwarding state.
Port State. Indicates if RSTP is enabled on the interface.
Point-to-Point Admin Status. Indicates if a point-to-point links are established, or permits the device to
establish a point-to-point link. The possible field values are:
• Auto. Point-to-point links are automatically established by the device.
• Enabled. Enables the device to establish a point-to-point link. To establish communications over a point-
to-point link, the originating PPP first sends Link Control Protocol (LCP) packets to configure and test the
data link. After a link is established and optional facilities are negotiated as needed by the LCP, the
originating PPP sends Network Control Protocols (NCP) packets to select and configure one or more
network layer protocols. When each of the chosen network layer protocols has been configured, packets
from each network layer protocol can be sent over the link. The link remains configured for
communications until explicit LCP or NCP packets close the link, or until some external event occurs. This
is the actual switch port link type. It may differ from the administrative state.
Chapter 5: Using the Web-based Utility for Configuration
Spanning Tree Tab - RSTP Port Settings
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