I think the issue, touched upon by others, is that you don't know whether the loss is path specific (although loss to Aussi mirroring local is a small data point to add) and mostly whether it's protocol specific. Find a remote host (close to start with) and run the low bandwidth udp iperf tests, looking for loss there. If you see loss there, then it's likely that there is congestion somewhere along the path. If you start seeing loss as UDP test speeds increase but before line rate then it might be congestion and it might be some schedulers not being set appropriately for your access type. But pinging DNS servers doesn't give a good enough set of metrics to chase this down. Cheers - N On 21 January 2014 16:42, Matthew Poole <matt(a)p00le.net> wrote:
No SLA, hence the question. Subjectively I expect that a fibre circuit to a major provider will be delivering very low levels of loss, and very low levels of jitter. I just don't have enough knowledge of what's actually normal for a standard business fibre connection in central Auckland to quantify my "low levels".
As an indication, for this month I've got peak loss of 3.5-4.5% and average ~0.08% to two different DNS servers on the provider's network. Off to an Australian host it's a similar level, but at 26ms median rtt instead of a mere 1.5ms.