Cisco Systems SLM2008PTNA Manual De Usuario

RSTP Interface Settings

Cisco Small Business SG200 Series 8-port Smart Switch

123

 

•

Port State—Current STP state of a port. If enabled, the port state 
determines the forwarding action that is taken on traffic. Possible port states 
are: 

-

Disabled—STP is currently disabled on the port. The port does not 
participate in the spanning tree, but is in an operational state to learn 
MAC addresses and forward traffic.

-

Discarding—Port is currently blocked and cannot be used to forward 
traffic or learn MAC addresses.

-

Learning—Port is currently in the learning mode. The port cannot 
forward traffic, however, it can learn new MAC addresses.

-

Forwarding—Port is currently in the forwarding mode. The port can 
forward traffic and learn new MAC addresses.

•

Designated Bridge ID—Bridge identifier of the bridge that offers the 
lowest root path cost to a LAN. The ID is a concatenation of the bridge 
priority and the base MAC address of the bridge.

•

Designated Port ID—Port identifier on the Designated Bridge that offers 
the lowest root path cost to the LAN. The ID is a concatenation of the port 
priority and the interface number of the port.

•

Designated Cost—The root path cost from the designated bridge to the 
root bridge. Ports with lower designated cost are less likely to be blocked 
when STP detects loops.

•

Speed—Port speed.

•

LAG—LAG that the port is a member of, if any.

Rapid Spanning Tree Protocol (RSTP) ensures a faster convergence of a loop-free 
spanning tree for any bridged LAN. To display the RSTP Interface Settings page, 
click Spanning Tree > RSTP Interface Settings in the navigation window.

A rapid spanning tree topology is formed automatically when RSTP is selected as 
the spanning tree mode. Use the STP Status & Global Settings page to enable 
RSTP mode.