So I am trialing Netflow, and set up my Procurve 5406 switch with sflow enabled.
sflow 1 destination 10.2.32.11 2055
sflow 1 polling A1-A2 20
sflow 1 sampling A1-A2 500
When looking at the data, Ingress shows me all kinds of stuff, but when I change to Egress, I get "No data for selected time period". Nor does it matter if I change the polling length (Some other postings I read said sometimes if you switch to 30 minutes you will have results). Mousing over the arrow to change the time says "Sorry, this content could not be loaded."