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Stackable NWay Ethernet Switch User’s Guide
104 Web-Based Network Management
Advanced
Figure 7-3. Configure Switch Stack – Advanced window
The first setting allows you to enable or disable port auto-partitioning by the
Port’s Auto-Partition
Capability on All Ports
function. If you enable auto-partitioning on all ports, when more than 62 collisions
occur while a port is transmitting data, the port automatically stops transmissions. The second setting allows
you to enable or disable the
Head of Line (HOL) Blocking Prevention
function, which is designed to
prevent forwarding a packet to a “blocking” port. Click
Apply
to let your changes take effect.
The information above is described as follows:
♦
Port’s Auto-Partition Capability on All Ports
This option offers
Enabled
or
Disabled
to decide
whether to auto-partition a selected port and take it offline or not.
♦
Head of Line (HOL) Blocking Prevention
This option prevents forwarding a packet to 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.”