Broadband: Beyond Thunderstorm

My ISP very kindly makes traffic graphs available for my ADSL line, which is mostly carried overhead on telegraph poles, over the tops of the hills to the exchange about 3km away (as the phone line flies).

On the last Saturday of May we (and most of the south of England by all reports) had some impressive electrical storms. I sat outside in the small hours and watched for quite some time. Here’s my traffic graphs for the period. The red areas show packet loss. The deeper the red, the more packet loss.

I think it’s pretty obvious when the storms were occuring. At 3:30am it appears my line dropped completely and retrained downwards to cope. Fortunately it has now retrained upwards again. I’m amazed by the large effect the storms had.

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