US Telco Support > Verizon > Verizon Online DSL > Need to switch between Interleave and FastPath? Part 2

reply to Smith6612

Re: Need to switch between Interleave and FastPath? Part 2

reply to rci2990
OK. If you're aware of what FastPath does to the line that may cause problems, feel free to ask to get it switched over. I do still believe your upstream margin should be much higher considering your distance.

@jonnejon: You didn't do anything wrong. Lately it seems they've been understaffed. They should get to you sometime soon.

@bma4573: I see no more than 5Mbps coming out of that line without trouble if you were to get ADSL2+ installed onto the line. FastPath is do-able, though you need to see what you can do about improving the statistics first. The attenuation suggests you're beyond the 2 mile mark in wire.

@beths: I'd contact Verizon and ensure you're actually on the 1.1-15Mbps "Enhanced" plan. The speed you're set at falls under the 768kbps-1Mbps plan. You've already got ADSL2+ on the line, so realistically if the line is running clean enough you might be able to squeeze by with 10Mbps. I wouldn't count on it though and would expect to see it max at about 7Mbps. As far as FastPath goes, work on getting the speed increased first since it sounds like that is a higher priority over lower latency.

Thanks for your help.

Do you have any suggestions for contacting Verizon?

When I did the tech support chat I just got the run around.

When I went through customer support they did confirm that I was on the HSI Enhanced plan.

Then I found this web site and you are the only person who is knowledgeable who is responding to questions.

The verizon direct section of this web site seems to have stopped responding to DSL questions.

Thanks again for you help.

reply to BethS

(topic move) Need to switch between Interleave and FastPath? Par

reply to Smith6612

Re: Need to switch between Interleave and FastPath? Part 2

What I pretty much stated was an estimation. If Verizon can move you onto an ADSL2+ DSLAM and set your speed high enough, I see the line getting pretty close to the 5Mbps rates, but don't count on it being 100% there. If the line's attenuation is higher than you expect, you can see if things are better at the NID or see if you can convince Verizon to send a tech out to improve the line, but really there isn't a lot that could be done if the problem is actually with higher gauge cabling.

reply to Smith6612
I hear tell that if one is provisioned on one of the new Adtran DSLAMs, one can only get FastPath if one's download speed is set for 7 Mbs or lower. Very odd as the people who want and need the higher speeds are usually the same who want low latency.
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"Remember, Comrade, people who are willing to destroy an efficient telephone system may not be playing with a full deck."

By any chance, does an option exist for changing Interleaving depth? I'm curious if that would be a workaround. I find it strange that a Fast option would not be available, though I'm curious if it may be a limitation of the DSLAM (>8Mbps = Interleaving) or perhaps Verizon being cautionary.

reply to Smith6612
It's probably Verizon being cautionary, as the Adtran card itself appears to allow it (in fact the card allows download speeds of up to 32 Mbps). When I was on the Alcatel 7300 ASAM, I was doing 15 Mbps on FastPath.
--
"Remember, Comrade, people who are willing to destroy an efficient telephone system may not be playing with a full deck."

reply to Smith6612
No options for interleave. It's just fastpath, interleave and one for the auto optimization.

reply to Smith6612
I was hoping to hear from you guys if you thought it would benefit me to switch to FastPath? Thanks in advance!

DSL Status
VPI: 0

VCI: 35

DSL Mode Setting: Auto

DSL Negotiated Mode: G.DMT

Connection Status: ShowTime

Speed (down/up): 7616/800 kbps

ATM QoS class: UBR

Output Power (Downstream/Upstream): 11.9/19.7 dBm

Attainable Rate (Downstream/Upstream): 9312/920 kbps

HEC Errors (Downstream/Upstream): 3/0

OCD Errors (Downstream/Upstream): 1/1

LCD Errors (Downstream/Upstream): 0/2

SNR Margin (Downstream/Upstream): 10.4/11 dB

Attenuation (Downstream/Upstream): 41.5/16.0 dB

Again, Thank you guys so much for what ever help I get.

If you want to keep 7.1Mbps you'd be best to stay with Interleaved. The line's running fine now but it might develop issues pushing it farther. The upload is missing 64kbps so that might be worth checking into.

Well thanks for your response.

reply to Smith6612
I just had and some line maintenance done. End result was getting my line re-provisioned, and the cap moved from 1.5 to 3.0. Sync is stable and I am getting reliable service at 2.88Mb/s. I am still in Interleaved mode and was wondering if my line could support FastPath. Stats for line with a Westell 6100 modem are as follows:

Transceiver Statistics

Transceiver Revision: 7.2.3.0
Vendor ID Code: 4
Line Mode: G.DMT Mode
Data Path: Interleaved

Transceiver Information Downstream Path Upstream Path
DSL Speed (Kbits/Sec) 3360 800
Margin (dB) 13.5 9.0
Line Attenuation (dB) 47.0 31.0
Transmit Power (dBm) 11.3 11.8

So what do you folks think? Is it Fastpath worth a try?

Thanks for your time.

reply to Smith6612
How do I run my transceiver stats for my Verizon dsl westell 7500 modem?

Try these instructions: »AT&T Southeast Forum FAQ »How do I access the Westell line stats and logs? What do the numbers mean?

reply to mcdonn_3422
I honestly would say that if you can get the upstream running a little better, you should be good to go. Either way it should be fine from the looks of things.