Fast Ethernet Switching System User’s Guide
Spanning Tree Algorithm
Spanning Tree Algorithm can be enabled or disabled. Use Spanning Tree to prevent network loops.
Bridge Priority
The Bridge Priority can be from 0 to 65535. Zero is the highest Bridge Priority. The higher the Bridge Priority the greater the chance that the
Root Cost
The Root Cost is the number of times a packet is regenerated before reaching its destination. A source sends a packet to the first device (switch or hub) on the network. When the packet reaches the next hub or switch and is sent out again, the Path Cost becomes two. Each switch and active hub regenerates the packet. To determine the Root Path Cost, count the number of times the packet is regenerated.
The switch with the lowest Path Cost is the Root Bridge. Make the Root Bridge the best switch on the network.
Hello Time
Is the interval between two transmissions of packets sent by the Root Bridge to tell all other switches that it is the Root Bridge. The Hello Time can be set manually, with a range in seconds from 1 to 10. If the Hello Time is set for the switch and the switch is not the Root Bridge then the Hello Time will not take effect until the switch becomes the Root Bridge.
Forward Delay Time
This is the time any port on the
Use the following formula when setting the Hello Time and the Forward Delay Time:
2 x (Forward Delay minus 1 second) > Max Age
2 x (Hello Time plus 1 second) < Max Age
Max Age Time
Is the time a
Managing the | 60 |
