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24-port NWay Ethernet Switch User’s Guide
Using the Console Interface
69
Line blocking occurs when a packet originating on Port
1, for instance, needs to be forwarded to Ports 2 and 3. If
Port 2 is occupied (causing the packet to be held in
memory until the port is free), the packet destined for
Port 3 will also be delayed, even though the port may be
free. Cumulatively, these delays can have a noticeable
effect on overall network performance. Enabling HOL
Blocking Prevention prevents Head-of-Line blocking
from occurring, meaning that the packet destined for
Port 3 gets delivered immediately.
Configure Ports
The port configuration screen allows you to change the
port state in the case when you would like to partition a
port due to excessive collision, or for observation, device
repair, or security reasons. Great caution, however, must
be observed when partitioning a port; you should make
sure that the partitioned port is not being used as the port
to control or monitor the condition of other devices.
Figure 6-12. Port Configuration screen