With 1 second sampling interval time, you may see Avalanche reports 0 data in your graph or result. This is because the Avalanche misses some data from the chassis due to packet loss in the network. With more ports and cores in used, the chances of getting 0 data every second increases. Hence we recommend to use the default 4 second sampling interval or more.
Note: In the case of MX cards and 3100B with more ports/cores are in used, we recommend increasing the sampling interval time to 10 second or more.