em0                                                                      18:35
  ^                                                     r
  |                                                  r  r
  |                                                  r  r
  |                                                  r  r
  |                                                  r  r
  |                                                  r  r
  |                                                  r  r
  |                                                  r  r
  |                                                  r  r
  |                                                  r  r  r     r  r  r
 -+--------------------------------------------------------------------------->
  |  19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18

 h  rx (MiB)   tx (MiB)  ][  h  rx (MiB)   tx (MiB)  ][  h  rx (MiB)   tx (MiB)
19        5.6        9.3 ][ 03      995.1      627.1 ][ 11    20953.4      752.6
20        4.6       10.2 ][ 04     1402.4      618.9 ][ 12    22101.7      793.9
21        4.6        5.3 ][ 05     1338.1      581.1 ][ 13     3478.6      129.7
22        4.9        6.4 ][ 06        4.5        7.2 ][ 14      946.1      313.6
23        4.8       10.9 ][ 07        4.2        6.3 ][ 15     2566.1      848.4
00        4.6       13.9 ][ 08        4.9       17.7 ][ 16     2546.0      913.4
01        4.1        6.2 ][ 09        4.9        9.9 ][ 17     2576.0      892.0
02     1958.3      146.4 ][ 10        4.9        9.9 ][ 18     1533.8      535.7