Forwarding And Filtering - D-Link DES-6000 User Manual

Modular Ethernet Switch User's Guide
STP Port Settings
Enter the desired Spanning Tree custom settings on this screen and then click Apply.
The information above is described as follows:
♦ STP Status The Spanning Tree Protocol state for a selected port can either be Enabled or Disabled.
♦ Cost The Path Cost is a read-only parameter which is the first consideration when deciding on a
designated port for switch to switch connections. Each 10Mbps port has a predefined cost of 100. Each
100Mbps port has an assigned Path Cost of 19. Gigabit ports have a cost of 4. Trunked ports have a
cost of (base cost) minus (no. of ports in the group).
♦ Priority Port Priority is a read-write object that can be set from 0 to 255. The priority is used to
determine the designated port if the Path costs of redundant switch to switch connections are the
same. The higher the port priority, the more chance the port has of becoming the designated port.
Zero is the highest priority.

Forwarding and Filtering

When a packet hits the Switch, it looks in the filtering and forwarding tables to decide what to do with the
packet; either to filter it off the network, or to forward it through the port on which its destination lies.
Web-Based Network Management
Figure 7-9. STP Port Settings window
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