Interleaving on line
Hey,
That's not quite "through the roof"
You won't be "though the roof" until you're in the 4 digit numbers
That's not quite "through the roof"
You won't be "though the roof" until you're in the 4 digit numbers
You're seriously suggesting that the shortest interval the human eye-brain combination can detect is a blink? 
I think you'll find it's a little more complicated than that. And that context and application matters too. A single frame of standard rate cinema film is 42ms. Add 10ms to that, taking you down to 19fps, and you'll notice.
It's that kind of display of poverty of insight and logic, combined with disdain for customers deemed a priori to have a trifling problem, which gives ISP tech support a bad name.
Your customer is legitimately enquiring as to why latency has doubled for him. Not why it is 30ms. But why it was 16ms and has now doubled.
So you have:
1. It may be interleaving (about which nothing much can be done on FTTC if it is);
2. This shouldn't be causing an issue (which may or may not be the case, in fact).
Then you have:
3. Is it causing an issue (or, indeed, a sign of something which may begin to cause an issue)? If the customer says it is an issue, then at least take that as the starting point;
4. Can anything be done about it? (It is not impossible, or even unlikely, that a good component of the increase is not last mile but core routing).
Disappointing.
I think you'll find it's a little more complicated than that. And that context and application matters too. A single frame of standard rate cinema film is 42ms. Add 10ms to that, taking you down to 19fps, and you'll notice.
It's that kind of display of poverty of insight and logic, combined with disdain for customers deemed a priori to have a trifling problem, which gives ISP tech support a bad name.
Your customer is legitimately enquiring as to why latency has doubled for him. Not why it is 30ms. But why it was 16ms and has now doubled.
So you have:
1. It may be interleaving (about which nothing much can be done on FTTC if it is);
2. This shouldn't be causing an issue (which may or may not be the case, in fact).
Then you have:
3. Is it causing an issue (or, indeed, a sign of something which may begin to cause an issue)? If the customer says it is an issue, then at least take that as the starting point;
4. Can anything be done about it? (It is not impossible, or even unlikely, that a good component of the increase is not last mile but core routing).
Disappointing.
Quote from: James I think you've misunderstood me! I was trying to put into perspective how tiny and interval it is from 16->30ms. I certainly wouldn't be able to tell the difference!
Nope: I understood perfectly, and you've failed to acknowledge the thinking error. Unless there's something wrong with my maths, 10ms is less than 14ms. But by all means watch your films slowed down if you prefer, or feel free to shun the 60fps revolution. I must say I don't like the hyper-real look myself.
Not seeing the 7 disconnections in 1.5 hours, but agree that stability should lead to less DLM intervention.
I don't think I'll be helping by contributing further, though, as the OP probably didn't envisage a thread about cinema and human reaction/perception times, so time for me to
Blink and I'm gone!
Thanks everyone for the replies and thanks James for that graph,
All the disconnections have been because I've been trying to get onto a particular gateway, would this trigger the DLM with interleaving?
I'll leave my line alone I know through the roof is exaggerated but my latency has doubled what it previously was.
Any previous experience how long it can take for the DLM to reset and turn interleaving off?
Once again cheers for advice a lot more helpful on here than when I was with BE
All the disconnections have been because I've been trying to get onto a particular gateway, would this trigger the DLM with interleaving?
I'll leave my line alone
I know through the roof is exaggerated but my latency has doubled what it previously was.Any previous experience how long it can take for the DLM to reset and turn interleaving off?
Once again cheers for advice a lot more helpful on here than when I was with BE
Quote from: Oldjim How were you trying to change gateways - resunching the modem or just disconnecting/connecting the router
If the latter it really should affect the DLM
Yeah was doing it from here
