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The field you can set is:
Head Of Line (HOL) Blocking Prevention If Enabled, this function is designed to prevent forwarding
a packet to a "blocking" port, that is, a port where an excess of packets are queued up. Note that when a
multicast packet or a packet with an unknown destination address needs to be forwarded to several ports,
and if some of them are "blocking", the packet will not be discarded, rather it will be forwarded only to the
ports that are not "blocking."
Configure Ports
The Port Configuration screen allows you to change the port state in the case when you would like to
partition a port, 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.
To change the configuration of a port:
1. Select System Configuration from the main menu and then choose Configure Ports. The following
screen appears:
Figure 6-12. Configure Advanced Switch Features screen
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Gigabit Ethernet Switch User's Guide
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