On Mon, Mar 8, 2010 at 2:12 PM, Benjamin Scott <dragonh...@gmail.com> wrote: > On Mon, Mar 8, 2010 at 10:48 AM, Greg <g...@kettmann.com> wrote: >> What's the best approach to isolating or identifying the details of this >> problem? One obvious solution is to log some pings for a day or two. > > This is tricky because what you're looking for is not throughput, > and not even latency (Round Trip Time), but rather, Packet Delay > Variation, AKA jitter. That is, you don't care how long it takes a > packet to transit, but you need to characterize *variation* in how > long it takes a packet to transit.
Before you try to characterize jitter/latency/etc, you need to figure out if there is any packet loss. Jitter will hurt your connection but packet loss will kill it. You mentioned QoS settings. These are probably ignored by your provider and thus only have an effect inside your local network. You also mentioned that you have problems just with web surfing. How frequently does this occur? You likely have some problem either on the wiring to your house, or inside your house, or possibly with your ISPs local network. If you can characterize the issue from stats on your modem you may be able to get some help from the ISP. -Brian _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
