I jumped the gun my first time around troubleshooting this. After fixing the pollers, etc, I found the issue in my rrd file.
rrd_version = "0003"
step = 60
last_update = 1315414141
ds[traffic_in].type = "COUNTER"
ds[traffic_in].minimal_heartbeat = 600
ds[traffic_in].min = 0.0000000000e+00
ds[traffic_in].max = 1.0000000000e+00
ds[traffic_in].last_ds = "862011483"
ds[traffic_in].value = 9.8231864407e+03
ds[traffic_in].unknown_sec = 0
ds[traffic_out].type = "COUNTER"
ds[traffic_out].minimal_heartbeat = 600
ds[traffic_out].min = 0.0000000000e+00
ds[traffic_out].max = 1.0000000000e+00
ds[traffic_out].last_ds = "486569242"
ds[traffic_out].value = 1.3458022034e+05
ds[traffic_out].unknown_sec = 0
What does that exactly equal? I changed them to 1.0000000000e+09
sudo rrdtool tune ../rra/itdcrr1_traffic_in_2395.rrd --maximum traffic_in:1.0000000000e+09
and the graph started working properly.
But I have 1000+ rrd files that need to be modified. There must be an easier way. Any helpers?