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taz291819

join:2002-08-31
Huntsville, AL

1 edit

It seems we lost upstream channel bonding in Huntsville, AL

It seems we lost upstream channel bonding in Huntsville, Al. Rebooted my modem, and now it's back to just one channel. Rebooted twice (and reset defaults) just to make sure.

Will check on our modem in Florence, Al later this week to see if the same happened there.


andyross
Premium,MVM
join:2003-05-04
Schaumburg, IL

Re: Evidence of Upstream Channel Bonding - Post Here

What are you upstream levels? If they are too high, it may not negotiate bonded channels.


taz291819

join:2002-08-31
Huntsville, AL

said by andyross:

What are you upstream levels? If they are too high, it may not negotiate bonded channels.

My upstream levels are 43dBmV.

sammydad1

join:2002-06-28
Lake Worth, FL
reply to taz291819

Re: It seems we lost upstream channel bonding in Huntsville, AL

same thing here in Western Lake Worth, FL...

SB6120 had Bonded upstream for a few months, now its back to single channel....

Whats up with that ?


Oedipus

join:2005-05-09
kudos:1
reply to taz291819

A lot of people have seen it come and go and then come back. Give it time.


rendrenner

join:2005-09-03
Grandville, MI
reply to taz291819

Up here in the mitten we had U/S bonding turned on at the end of May. It was turned back off sometime in October. (cant remember date).
It was causing too many issues with modems flaking out. It was turned off to eliminate the increase in trouble calls. We havent heard much as to what is being worked on. It is not RF or plant related.
Possibly a CMTS config issue


nysports4evr
Premium
join:2010-01-23
kudos:1
reply to taz291819

Had it for months here and lost mine now as well... back to one channel in Jensen Beach, FL.


travelguy

join:1999-09-03
Santa Fe, NM

Interesting. Six months ago we had single channel upstream and I was getting a solid 10 mbps. Shortly after, we went to bonded upstreams, I was seeing 3 channels, but the middle one was missing and uplink speeds that varied all over the place from 1.5 to 7 mbps. Lately pretty solid at 9 mbps, but still missing the middle channel.

Interestingly enough, right about the time we went to bonded upstreams, the CMTS went from Moto to Cisco. Don't have IP6 though.


nysports4evr
Premium
join:2010-01-23
kudos:1

Back now. Looks like they switched my area to dual 64QAM carriers, previously it was one 64QAM and one 16QAM channel.


taz291819

join:2002-08-31
Huntsville, AL
reply to taz291819

Yeah, ours was one 64QAM one 16QAM as well. Will give it a reboot in a few days.



Ripper
Premium
join:2002-02-07
West Palm Beach, FL
reply to sammydad1

Yeah i'm in Greenacres, and I am back to one up also, about two weeks ago.


taz291819

join:2002-08-31
Huntsville, AL

Still on a single upstream channel. I'm worried that with the speeds doubling (I'm on 50/10), that I won't actually see a difference in upload.

I know a single 6.4Mhz channel can handle 32Mbps, but I can't determine if it's a 6.4Mhz or 3.2Mhz channel, since the Motorola SB doesn't give you that information.



beachintech
There's sand in my tool bag
Premium
join:2008-01-06
kudos:5

They are most likely working through an issue in your area. You will still get your provisioned speeds.



Oregonian
Premium
join:2000-12-21
West Linn, OR
reply to taz291819

My modem (SB6120) rebooted earlyh this morning and I have now lost both upstream and downstream bonding that I had for many months.

I'm going to try a power cycle and see if it comes back.



EG
The wings of love
Premium
join:2006-11-18
Union, NJ
kudos:9
reply to taz291819

said by taz291819:

I know a single 6.4Mhz channel can handle 32Mbps, but I can't determine if it's a 6.4Mhz or 3.2Mhz channel, since the Motorola SB doesn't give you that information.

A single upstream carrier does not provide that much capacity. It's 3.2 for the upstream. And it depends on the modulation scheme that is being used.


Oregonian
Premium
join:2000-12-21
West Linn, OR
Reviews:
·Comcast
reply to Oregonian

Power cycling fixed my issue. I'm again bonded on 4 downstream and 2 upstream channels.