D-Link DES-3225G Series User Manual page 111

24-port NWay Ethernet Switch User's Guide
♦ Firmware version Version number of the firmware installed on the Switch. This can be updated by
using the Update Firmware window in the Reset and Update section.
♦ Hardware version Version number of the Switch's hardware.
♦ Slot 1 Description of module plugged into slot 1, located on the front-of the Switch.
♦ Slot 2 Description of module plugged into slot 2, located on the rear of the Switch.
Advanced
The first setting allows you to enable or disable port auto-partitioning by the Port Auto-Partition
Capability on All ports function. If you enable auto-partitioning on all ports, when more than 16 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 in the window is described as follows:
♦ Port 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
Web-Based Network Management
Figure 7-5. Switch Settings - Advanced window
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