Implementing link aggregation, When is lag needed, Example 1 – ALLIED Vision Technologies Bigeye G-1100 Cool User Manual
Page 42
AVT GigE Cameras Installation Manual V1.0.0
42
Implementing link aggregation
Implementing link aggregation
The Prosilica GX series cameras offer two Gigabit Ethernet ports for image data
transfer and control. Users can connect one or both ports on the Prosilica GX to
Ethernet adapter ports on a host computer. The dual port approach requires the
host computer to configure a Link Aggregate Group (LAG). A LAG configuration
combines multiple Ethernet ports into a single data channel.
When is LAG needed?
Connecting both ports increases the available bandwidth to 240 MB/sec. This is
beneficial for the following cases.
•
Need to use high(> 8 bits) bit depth pixel formats.
•
Highest frame rate is needed.
The following examples show how to determine bandwidth consumption. If the
value is greater than 125 MB, LAG is required.
Example 1:
GX1050 camera using Mono8 pixel format and outputting 100 fps
Bandwidth usage = Resolution x Pixel format x Frame rate
= 1024 x 1024 x 1 (1 byte for Mono8) x 100
~ 105 MBps
Figure 32: Prosilica GX camera network configuration using multiple Ethernet ports
www
See AVT Prosilica GX Technical Manual for resolution and ROI
frame rate performance.
www
For more information on camera pixel format, see:
PvAPI users:
cument
VIMBA users
cument