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Fast Ethernet Switching System User's Guide
Switch Control
The Switch Control panel, displayed in Figure 59, enables you to set the packet
forwarding rate on the DES-5200.
Figure 59: Switch Control
Rate Control
Store and Forward means that when the DES-5200 receives an incoming packet it
"stores" the packet until the entire data packet has been received before it
"forwards" the packet to a destination.
Advantages of Store and Forward
Store and Forward only sends out valid data packets. Bad packets created by
collisions on the network or damaged packets are filtered out.
Always us Store and Forward when some devices on the network run at 10 Mbps
and others run at 100 Mbps.
Disadvantages of Store and Forward
Store and Forward requires more time because it receives the whole packet before
sending it out. Every byte buffered is an additional eight microseconds of delay.
Web Management
107
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