User`s manual

Preliminary
64 • Operational Reference Genie Monochrome Series-GigE Vision Camera
Maximum Packet Resend Sets the percentage of packets that can be resent for each frame. This is used to
ensure the streaming data (including resends) does not exceed the Ethernet link
capacity. As an example, a system capturing at 80 MB/s can allow 25% of
packet resends without exceeding 100 MB/s (about the maximum capacity of a
gigabit Ethernet link).
Increasing Network Adapter Buffers
Under certain conditions the host PC system CPU may be very busy with tasks other than the imaging
application. Incoming image packets remain in the PC memory allocated to store packets instead of
immediately being copied into the image buffer. By increasing the NIC host buffers, more incoming
image packets can be stored by the NIC before it must start discarding them. This provides more time
for the PC to switch tasks and move image packets to the image buffer. Note the Network
Configuration tool provides a field to configure the number of adapter buffers for most popular NIC.
Not all network boards allow increasing their buffer count and even among those that do, such as the
Intel NIC, different versions will have different maximum receive descriptor values. Refer to the NIC
user documentation for details on configuring this parameter. The following screen shots show the
procedure to increase the number of packet buffers for one version of Intel network adapter.
• Open the properties for the Ethernet GigE NIC used with the Genie.
• Click the Configure button.
GigE NIC Configuration
• Click on the Advanced tab.