Downstream channels
 

Hello,

My Internet had to be rebooted this morning and upon looking at my modem pages it all kicked off around 0500hrs this morning.

However after the reboot all is working and back to 50/5 speed and no issues.

However my downstream channels have gone from 3 to 4. Occasionally I use to get a ghost 4th downstream channel but this time it's definitely there.

Can anybody confirm why this is? Is it the network being upgraded for 100Mbps in my area?

Thanks for taking the time to read.

Re: Downstream channels
 

probably, 50mbit ran on 4 channels in some areas and 3 in others. If you had 100mbit and kept your vmng300 you would defo need to run 4 channels and if they gave you a not superhub, that has the ability to run on 8 channels

Re: Downstream channels
 

I've had 50Mbps for ages now and it's always been 3 downstream channels with no problems so I was aware some areas ran with 3 and some with 4. Was just wondering why Ipswich has been changed to 4.

Thankfully I do have vmng300 however over the last couple of weeks my Sam knows kit has been picking up a small percentage of packet loss at peak times. I'll keep an eye on it now I have four downstream channels.

Re: Downstream channels
 

All areas are being upgraded to between 5 and 8 - though to get 5 you have to have 4 first...

Re: Downstream channels
 

Hmmm...

Sounds like it might be worth using the hub again even if only as a modem then once that happens.

Re: Downstream channels
 

Meh, VM will just use it as an excuse to push oversubscription even further.

Re: Downstream channels
 

You went up to 4 channels because VM have put the new Cisco Line Cards (MC3GX60V) into the UBR. These replace the old MC20X20vs.

This is indeed preparation for 100 meg (but don't read a short timescale into this), but more to the point, it is a significant increase in capacity.

Re: Downstream channels
 

You could tell which kit a area had by the down streams 3 for cisco 4 for Motorola :)

Re: Downstream channels
 

Thanks for that Seph, I think Ipswich is scheduled for 100 meg for December but I'll take that with a pinch of salt as our upload increase was put back from the original planned date. However as with these things the unexpected can always happen so totally appreciate Virgin Media's problem with providing dates and being able to stick to them!

Thanks once again Seph.

Re: Downstream channels
 

You can tell by CMTS MAC in event logs :)

Re: Downstream channels
 

eg 00:21:d8 = Cisco
eg 00:30:b8 = RiverDelta(aka Motorola)?
> http://www.coffer.com/mac_find/

Re: Downstream channels
 

Thanks for the handy site.

Another Cisco from my event log - 00:06:2A

Apparently my VMNG300 uses a Hon Hai Precision Ind. Co., Ltd. component.

Re: Downstream channels
 

That is who manufactures Ambit.

I use that site every day in work.

Re: Downstream channels
 

Thanks Tony for the link, same for me as kwikbreaks with my Ambit modem, 00:24:c4 = Cisco and now on 4 downstream channels.

Re: Downstream channels
 

My net was off again this morning, rebooted and I still have 4 DS channels however my upload has changed to mini slot size 1. Sam knows now shows my upload is struggling to get above 3.75. I know Seph had this problem in the past. Since the upload upgrade we have been on mini slot size 4 and were prior to the upgrade and always hit 5Mbps as shown on my Sam Knows data.

Any body have any idea what/why this has happened.

There is a service ticket listed for my area stating my broadband is down but for me it isn't, it is very flakey though. I got disconnected from Xbox live earlier for no reason.