User manual

C HAPTER 8 | Spanning Tree Algorithm
Configuring Interface Settings for STA
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ES-2000 Series
WEB INTERFACE
To display global STA settings:
1. Click Spanning Tree, STA.
2. Select Configure Global from the Step list.
3. Select Show Information from the Action list.
Figure 59: Displaying Global Settings for STA
CONFIGURING INTERFACE SETTINGS FOR STA
Use the Spanning Tree > STA (Configure Interface - Configure) page to
configure RSTP attributes for specific interfaces, including port priority,
path cost, link type, and edge port. You may use a different priority or path
cost for ports of the same media type to indicate the preferred path, link
type to indicate a point-to-point connection or shared-media connection,
and edge port to indicate if the attached device can support fast
forwarding. (References to “ports” in this section means “interfaces,” which
includes both ports and trunks.)
PARAMETERS
These parameters are displayed:
◆ Interface – Displays a list of ports or trunks.
◆ Admin Edge Status for all ports – Since end nodes cannot cause
forwarding loops, they can pass directly through to the spanning tree
forwarding state. Specifying Edge Ports provides quicker convergence
for devices such as workstations or servers, retains the current
forwarding database to reduce the amount of frame flooding required
to rebuild address tables during reconfiguration events, does not cause
the spanning tree to initiate reconfiguration when the interface changes
state, and also overcomes other STA-related timeout problems.
However, remember that Edge Port should only be enabled for ports
connected to an end-node device. (Default: Enabled)
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Enabled – Manually configures a port as an Edge Port.