Logs connection quality metrics from the Motorola NVG510 DSL Modem.
$ php logdsl.php
| 160630 17:59:16 | il 30 | sn↓ 6.2 | sn↑ 7.4 | la↓ 39.5 | la↑ 23.3 | sr↓ 11182 | sr↑ 1020 | cr↓ 32 (0) | cr↑ 0 (0) | fr↓ 15541 (0.3) | fr↑ 22 (0) | bc Up | ls Up | gg 93.830
| 160630 17:59:47 | il 31 | sn↓ 6.2 | sn↑ 7.4 | la↓ 39.5 | la↑ 23.3 | sr↓ 11182 | sr↑ 1020 | cr↓ 32 (0) | cr↑ 0 (0) | fr↓ 15571 (0.97) | fr↑ 22 (0) | bc Up | ls Up | gg 94.220
| 160630 18:00:17 | il 30 | sn↓ 6.2 | sn↑ 7.4 | la↓ 39.5 | la↑ 23.3 | sr↓ 11182 | sr↑ 1020 | cr↓ 32 (0) | cr↑ 0 (0) | fr↓ 15602 (1.03) | fr↑ 22 (0) | bc Up | ls Up | gg 93.980
| 160630 18:00:48 | il 31 | sn↓ 6.2 | sn↑ 7.5 | la↓ 39.5 | la↑ 23.3 | sr↓ 11182 | sr↑ 1020 | cr↓ 32 (0) | cr↑ 0 (0) | fr↓ 15624 (0.71) | fr↑ 22 (0) | bc Up | ls Up | gg 93.085