moved to overlay network

[Chrysalis]

Ok so I am now connected to the overlay network and performance for the most part seems to be fine.

I have had no confirmation yet of work done tho so my question is this.

If I am now on a new ubr port using the overlay network (which seems to be the case) is this now permanent and someone has physically moved me, or is this something modems can do by themselves and there is a risk of me connecting back to the congested legacy port I was on before?

[Ignitionnet]

If I am now on a new ubr port using the overlay network (which seems to be the case) is this now permanent

No

and someone has physically moved me,

No

or is this something modems can do by themselves and there is a risk of me connecting back to the congested legacy port I was on before?

It's a configuration change that applies to everyone in your area, yes there is a 'risk' of you connecting to the legacy network depending on how things have been configured.

[Chrysalis]

not so good then :(

so I guess it could mean this configuration was already in place just I never got this channel before?
or they changed it as a result of my complaint but I could flip flop between the new and old channels?
or if I am lucky they changed it and I am tied to this new channel?

[pip08456]

If I recall correctly, you've downgraded to 20Mb which can use both the overlay and legacy network. For upstream purposes you may be better off on the legacy.

[Chrysalis]

no I was on 20meg at the start.

all the legacy channels on my port are very congested.

I had my modem turned off for a while then when I turned it back I found myself on this new channel, new ip range.

Whilst my upstream gets worser results on tests, the downstream is just about perfect and jitter is much less. So in my case the overlay network is a massive improvement.

You can read my story on the link below, and the reason I am asking the question is I was told I would be moved, and I am wondering if this config change is a result of that or this is just a fluke.

http://www.cableforum.co.uk/board/12/33663376-looks-like-vm-taken-congestion-new.html

It would appear from where I sit some kind of prioritisation exists on the overlay network where they dont let upstream congestion affect ack packets.

---------- Post added at 22:50 ---------- Previous post was at 22:45 ----------

pingtest evening

http://www.pingtest.net/result/17155720.png (http://www.pingtest.net)

pingtest morning

http://www.pingtest.net/result/17110684.png (http://www.pingtest.net)


evening speedtest

https://www.cableforum.co.uk/images/local/2010/05/17.png (http://www.speedtest.net)

here is a speedtest where upload was slower but no affect at all on downstream.

https://www.cableforum.co.uk/images/local/2010/05/18.png (http://www.speedtest.net)

[pip08456]

Remember you post now Chrys. Quite a few 20Mb users have been switched to the overlay to relieve congestion on the legacy.

How long though before the overlay gets congested?

[Chrysalis]

so you think its a move that means I will stay there?

I think the answer to your question all depends on if they move more users over, or if they have moved everyone over already they plan to move. If this is it then I guess the utilisation will increase with 50mbit orders which I expect are only a tiny % of new orders but if they put new 20mbit customers on it as well I dont think it will stay very good for long.

[pip08456]

I would think so but by no means guaranteed. Igni or Seph will no doubt correct me if I'm wrong.

[Sephiroth]

Igni's the expert on this kind of configurational thing. Still an honour to be mentioned in the same sentence. :nworthy:

I'll confirm though that on the overlay network (done cheaply) you have 9 Mbps bandwidth upstream on a single channel per optical node; on the legacy network, depending on when built, you'd be assigned an upstream frequency from 4 channels at either 4½ Mbps or 9 Mbps. So upstream contention grows with takeup to your street cabinet or optical node.

[Chrysalis]

yes I came from 4x4.5 to 1x9 (was on qpsk now on 16qam)

so is half of total upstream capacity, however I suspect there is a 'lot' less users on this new channel.

I been told now officially my move was deliberate and I will stay where I am. On my ping monitoring, packet loss is almost non existant and the latency variance between peak and off peak is there but small.

Also we know (from ignition) on my old channel I had downstream congestion as well as upstream congestion.