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Chrysalis · 31-12-2010, 19:27

Its LLU, but the behaviour is odd for sure.

I swapped my router twice this morning as I wanted to compare sync speeds and both other routers have higher latency (at first I thought was DLM also). But when the original router goes back in the latency reverts.

So

billion 7402nx original router - reports fast path, low downstream INP, the router can tune both INP and interleaving, however when I tried tuning INP it had no affect.
billion 7402r2 - tried this one out, same chipser but lower model, latency almost doubled, showed FEC errors which indicates interleaving.
speedtouch 585, old broadcom based router, like the 7402r2 higher latency and has fEC stats, in addition it specifically does say its in interleaving mode.

So currently 2 issues, a line mode that changes depending on what router is plugged in (so could be a weird DLM but isp says it isnt) and my exchange does have tiscali LLU. Also there is no BRAS profiling as I have experimented with low and high sync speeds with throughput changes been immediate (wouldnt happen on BTw). 2nd issue is the high base line latency of 25ms even on the fastpath router. Xilo will be playing with my line profile next week.

End of the day a steady 25ms is far better than a 15ms-XXXXms that I get on VM. But it seems unless I pay 100 notes a month to easynet connect I wont ever get the quality of service again I had with ukonline.

I am plugging the original router back in soon so the latency should drop again on that.

31-12-2010, 19:27	#176
Chrysalis Inactive Join Date: Sep 2003 Posts: 12,047	Re: Terrible performance Leicester (LE3) Its LLU, but the behaviour is odd for sure. I swapped my router twice this morning as I wanted to compare sync speeds and both other routers have higher latency (at first I thought was DLM also). But when the original router goes back in the latency reverts. So billion 7402nx original router - reports fast path, low downstream INP, the router can tune both INP and interleaving, however when I tried tuning INP it had no affect. billion 7402r2 - tried this one out, same chipser but lower model, latency almost doubled, showed FEC errors which indicates interleaving. speedtouch 585, old broadcom based router, like the 7402r2 higher latency and has fEC stats, in addition it specifically does say its in interleaving mode. So currently 2 issues, a line mode that changes depending on what router is plugged in (so could be a weird DLM but isp says it isnt) and my exchange does have tiscali LLU. Also there is no BRAS profiling as I have experimented with low and high sync speeds with throughput changes been immediate (wouldnt happen on BTw). 2nd issue is the high base line latency of 25ms even on the fastpath router. Xilo will be playing with my line profile next week. End of the day a steady 25ms is far better than a 15ms-XXXXms that I get on VM. But it seems unless I pay 100 notes a month to easynet connect I wont ever get the quality of service again I had with ukonline. I am plugging the original router back in soon so the latency should drop again on that.