e94mli
join:2009-04-07
 ·Acanac
 ·Videotron
| reply to Acanac PN
Re: PPPoE session from Montreal terminating in Toronto???
The profile has been changed. Delay has been reduced with about 30ms. First hop ping is now a much nicer 20ms instead of 50ms.
Downlink was reduced, as you suggested, measured is almost down 1Mb/s to 4.5Mb/s. I must say I'm a bit surprised I didn't expect that much of an impact. More surprising is the uplink which increased quite significantly. Measured uplink was before only about 350kb/s and now it is up to 600kb/s. Overall a good change. |
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Acanac PN
Acanac Support
Premium
join:2008-10-27
Montreal, QC
1 edit | Yes, I see the AL2 to AL1 change
My DSL is similar. Upstream could not sync at 800 but keeps stable 700 regardless the fact that noise margin is displayed too low. In your case, it is 5dB now.
Downstream is decreased from 6 to 5M.
I am glad you feel these changes match better for your needs and you are happy with them.
BTW what model is your modem?
Thanks.
--
We Rock |
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e94mli
join:2009-04-07 | The modem is the one that came with the service Aztech 605EU.
Sounds like a DSLAM - modem incompatibility that gives the strange readings. |
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Acanac PN
Acanac Support
Premium
join:2008-10-27
Montreal, QC
| Your modem is good, actually.
I tried many other modems on same scenario(My DSL) and some (old ones) don't work at all or hardly sync at 1-2M
The Bell technician's yellow diagnostics tool didn't sync at all, either.
Otherwise, my and your DSL is considered as good ones 
And they are!
Thanks. |
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planiwa
join:2009-02-19
Toronto M5S
| reply to e94mli
said by e94mli  :The modem is the one that came with the service Aztech 605EU. Sounds like a DSLAM - modem incompatibility that gives the strange readings. Could you please post your modem's line stats?
In fact, since you sound like you are able to do it, could you please post the more complete stats:
telnet, then:
cat /proc/*/*m_s*
Thanks! |
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e94mli
join:2009-04-07
·Acanac
·Videotron
| Here you go:
AR7 DSL Modem Statistics:
--------------------------------
[DSL Modem Stats]
US Connection Rate: 736 DS Connection Rate: 5056
DS Line Attenuation: 9 DS Margin: 24
US Line Attenuation: 20 US Margin: 6
US Payload : 876087840 DS Payload: 2706042272
US Superframe Cnt : 34897832 DS Superframe Cnt: 34897832
US Transmit Power : 12 DS Transmit Power: 3
LOS errors: 0 SEF errors: 0
Errored Seconds: 0 Severely Err Secs: 0
Frame mode: 3 Max Frame mode: 0
Trained Path: 1 US Peak Cell Rate: 1735
Trained Mode: 2 Selected Mode: 65535
ATUC Vendor Code: 494B4E53 ATUC Revision: 2
Hybrid Selected: 3 Trellis: 1
Showtime Count: 2 DS Max Attainable Bit Rate: 11296 kbps
BitSwap: 1 US Max Attainable Bit Rate: n/a
Annex: AnxA psd_mask_qualifier: 0x0000
Power Management Status: L0 DS HLINSC: 0
US ACTPSD: -345 DS ACTPSD: -425
Total init. errors: 0 Total init. timeouts: 0
Showtime init. errors: 0 Showtime init. timeouts: 0
Last showtime init. errors: 0 Last showtime init. timeouts: 0
ATUC ghsVid: b5 00 49 4b 4e 53 01 00
T1413Vid: 00 00 T1413Rev: 00 VendorRev: 00
ATUR ghsVid: b5 00 54 53 54 43 00 00
T1413Vid: 00 00 T1413Rev: 00 VendorRev: 00
[Upstream (TX) Interleave path]
CRC: 2 FEC: 3746 NCD: 0
LCD: 0 HEC: 68
[Downstream (RX) Interleave path]
CRC: 0 FEC: 0 NCD: 0
LCD: 0 HEC: 0
[Upstream (TX) Fast path]
CRC: 0 FEC: 0 NCD: 1
LCD: 0 HEC: 0
[Downstream (RX) Fast path]
CRC: 0 FEC: 0 NCD: 0
LCD: 0 HEC: 0
[ATM Stats]
[Upstream/TX]
Good Cell Cnt: 18251830
Idle Cell Cnt: 1011563439
Tx Packets Dropped Count: 0
Tx Bad Packets Count: 24
[Downstream/RX)]
Good Cell Cnt: 145854366
Idle Cell Cnt: 2633561468
Bad Hec Cell Cnt: 0
Overflow Dropped Cell Cnt: 0
Rx Packets Dropped Count: 0
Rx Bad Packets Count: 0
[SAR AAL5 Stats]
Tx PDU's: 8473300
Rx PDU's: 10840400
Tx Total Bytes: 1237212299
Rx Total Bytes: 3087032143
Tx Total Error Counts: 0
Rx Total Error Counts: 0
[OAM Stats]
Near End F5 Loop Back Count: 0
Near End F4 Loop Back Count: 0
Far End F5 Loop Back Count: 0
Far End F4 Loop Back Count: 0
SAR OAM Ping Response Drop Count=15 |
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planiwa
join:2009-02-19
Toronto M5S
| IKNS identified -- PPPoE session from MTL terminating in To?
said by e94mli : US Connection Rate: 736 DS Connection Rate: 5056 DS Line Attenuation: 9 DS Margin: 24 US Line Attenuation: 20 US Margin: 6 US Transmit Power : 12 DS Transmit Power: 3 ATUC Vendor Code: 494B4E53 ATUC Revision: 2 Showtime Count: 2 DS Max Attainable Bit Rate: 11296 kbps ATUC ghsVid: b5 00 49 4b 4e 53 01 00 [Upstream (TX) Interleave path] CRC: 2 FEC: 3746 NCD: 0 LCD: 0 HEC: 68 YES!!!!!
494B4E53
You are the first to confirm what looks like a way for Aztech modem users to identity IKNS DSLAM devices.
Thank you! |
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Acanac PN
Acanac Support
Premium
join:2008-10-27
Montreal, QC | clarification
49=I
4B=K
4E=N
53=S
494B4E53=IKNS |
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e94mli
join:2009-04-07
·Acanac
·Videotron
| And now explain IKNS... I've seen IKNS mentioned in the forum a couple of times but I don't know of any DSLAM called IKNS, although I only know Alcatel and Ericsson so I might be lost. |
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Acanac PN
Acanac Support
Premium
join:2008-10-27
Montreal, QC
| It should be some abbreviation but the meaning is type (brand) of CO equipment used in DSL . I think, it is Canadian made
For some reason, it behaves different than classic ones and creates some support troubles, as you see.
I am trying to find any official information on that as many people do.
On Bell site I've seen discussions where they claim that all IKNS-reported problems were minor and fixable by other means (something like this).
In two words:
The user is very close to CO but upstream is not synchronizing at full 800 and/or NM is shown very low, say 6dB.
Some strange interleave modem reporting on AL1 profiles and/or higher pings.
Unfortunately, 70% of cases I open recently seem to be in this category.
Best regards.
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