Cable Forum - View Single Post - 50M Think Broadband Ping Monitor Results (POST YOURS)

Chrysalis · 29-05-2011, 17:33

I am wondering how infinity can get that kind of jitter tho, docsis is not symmetrical up and down so upstream often gets congestion hence the jitter. But the way dsl works is as far as I know once you out of the local loop its fully symmetrical so traditonally adsl isps have not even come close to saturating upload capacity its always been downstream issues for them. vdsl gets much more generous on the upload tho but I would have thought there would still be no upstream congestion. So I am guessing downstream congestion is able to cause the same symptons.

29-05-2011, 17:33	#491
Chrysalis cf.mega poster Join Date: Sep 2003 Posts: 12,047	Re: Think Broadband Ping Monitor Results (POST YOURS) I am wondering how infinity can get that kind of jitter tho, docsis is not symmetrical up and down so upstream often gets congestion hence the jitter. But the way dsl works is as far as I know once you out of the local loop its fully symmetrical so traditonally adsl isps have not even come close to saturating upload capacity its always been downstream issues for them. vdsl gets much more generous on the upload tho but I would have thought there would still be no upstream congestion. So I am guessing downstream congestion is able to cause the same symptons.