Hello ITgustl
and welcome to ask.wireshark.org.
To visualize the broadcast load per VLAN I highly recommend the I/O graphs. The feature is available though the menu Statistics -> I/O Graphs.
- You probably want to disable the default graphs by removing the checkmarks in the first column.
- Next, add a filter for each VLAN in your trace, like vlan.id == 1 and eth.dst.ig == 1
- Depending on your needs, selects packets per second or bit per second
- Fiddle around with the style settings per line / graph name
A few hints for the graphs:
- Use strong, distinct colors. Red, blue and green work great on screen
- Check if the lines are visible on a monochrome print-out
- Fiddle around with the graph style. I like a line pattern for the most frequent values and impulse or bars for less frequent numbers.
Good luck
Eddi
