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[WWWombat]

Not too sure if this makes a difference but the InpREIN on the bearer 0 and bearer 1 are very different.

                      Bearer 0
INP:            49.00           47.00
INPRein:        0.00            0.00
delay:          0               0
PER:            0.00            0.00
OR:             0.01            0.01
AgR:            74132.27        20102.08

                        Bearer 1
INP:            4.50            4.00
INPRein:        4.50            4.00
delay:          3               0
PER:            16.06           16.06
OR:             79.68           31.87
AgR:            79.68   31.87

Bearer 1 is a low bandwidth channel that only contains control information passing between the modems. DLM chooses better protection for that data, doesn't want re-transmission, and is willing to put up with the overheads. Bearer 0 still carries all your data - and that is protected by re-transmission.

The configuration that DLM has chosen for bearer 0 on your line is as close to minimal as possible, and that demonstrates the problem with (simplistically) referring to a path as fastpath or interleaved.

In the modern setup, *every* line is interleaved, and none are fastpath (and that would be strictly true even if D=1). However, where the pre-G.INP interleaved configuration would have a minimum delay of 8ms, the smallest G.INP versions of interleaving have delays of around 0.2ms. Multiply the interleaving depth by the interleaver block size for both cases, and you can see the difference.

Presumably BT's tests have shown that this minimal level of interleaving+FEC helps reduce superficial re-transmissions that would come without it, reducing the jitter that would come from retransmission.

[Dray]

Presumably BT's tests have shown that this minimal level of interleaving+FEC helps

the HH5A to function.

[N0STIE]

Ok the HG612 3B has arrived although I have a problem with it.

I have unlocked it using this guide http://www.kitz.co.uk/routers/hg612unlock.htm and firmware B030SP08 webgui but I can't connection to the internet via LAN2 on my PC, LAN1 works fine but without dsl stats. When I connect my HH5 Type B via LAN1 wifi also works, just LAN2 won't let me connect to the internet. Based on the lights it appears to be connected. I have access to web gui @ 192.168.1.1 via LAN2 but there are not any stats beside sync and max sync attainable and no internet connection too.

What do I do?

[loonylion]

Ok the HG612 3B has arrived although I have a problem with it.

I have unlocked it using this guide http://www.kitz.co.uk/routers/hg612unlock.htm and firmware B030SP08 webgui but I can't connection to the internet via LAN2 on my PC, LAN1 works fine but without dsl stats. When I connect my HH5 Type B via LAN1 wifi also works, just LAN2 won't let me connect to the internet. Based on the lights it appears to be connected. I have access to web gui @ 192.168.1.1 via LAN2 but there are not any stats beside sync and max sync attainable and no internet connection too.

What do I do?

LAN2 does not have internet connectivity by design, it's for stats only. Plug LAN1 into your HH5 ethernet WAN port, and LAN2 into one of the LAN ports on the HH5.

[N0STIE]

What about my PC ethernet cable? I would like to have internet connection and web gui /telnet stats at the same time.

[loonylion]

your PC plugs into another LAN port on the HH5.

[N0STIE]

won't work, just connected as you said, no connection. Only works when I connect LAN1 on the HG612 to my PC but no line stats.

[valleysboy]

Here you go -

Ethernet connection from LAN 1 on HG612 to WAN port on HH5 - this gives you your internet connection via HH5.

EThernet cable from LAN 2 on HG612 to spare LAN port on HH5- this gives DSL Stats connectivity to HG612 from anywhere on your network.

Ethernet cable from any other spare LAN port on HH5 to a PC/Laptop of your choice - wired internet connection.

I think the above works assuming you haven't changed any standard IP addresses - 192.168.1.1 for the HG612, 192.168.1.254 for HH5 (?). Seems to work OK for me.

Picture attached (hopefully)

[N0STIE]

Yeah all cables connected exactly as on the picture attached, still no connection on my PC, wifi works fine on laptop tho. Can't even acces 192.168.1.1 now, the IPs in NIC are 192.168.1.100 as IPv4 and 255.255.255.0 as subnet mask.

[michty_me]

Bearer 1 is a low bandwidth channel that only contains control information passing between the modems. DLM chooses better protection for that data, doesn't want re-transmission, and is willing to put up with the overheads. Bearer 0 still carries all your data - and that is protected by re-transmission.

The configuration that DLM has chosen for bearer 0 on your line is as close to minimal as possible, and that demonstrates the problem with (simplistically) referring to a path as fastpath or interleaved.

In the modern setup, *every* line is interleaved, and none are fastpath (and that would be strictly true even if D=1). However, where the pre-G.INP interleaved configuration would have a minimum delay of 8ms, the smallest G.INP versions of interleaving have delays of around 0.2ms. Multiply the interleaving depth by the interleaver block size for both cases, and you can see the difference.

Presumably BT's tests have shown that this minimal level of interleaving+FEC helps reduce superficial re-transmissions that would come without it, reducing the jitter that would come from retransmission.

Thanks for the detailed description. That makes a lot more sense to me.
A different Zen support member came back to me yesterday stating the following about my line.

Synch Speeds:
Downstream: 73.9mbps
Upstream: 20.0mbps

Profile: 0.128M-74M Downstream, Retransmission Low - 0.128M-20M Upstream, Retransmission Low

The DSLAM is reporting your circuit is using a different type of protection known as G.INP / Retransmission, this is essentially that whenever an error is detected on the circuit this will be corrected on demand & in real-time; any other time the circuit is not erroring, then it's literally like interleaving is turned off.

It may simply be that your modem is reporting that the connection is being interleaved when in reality G.INP is actually in play.

I'm happy enough with my line as it is solid and gaming is fine. I was just more interested to learn more about it and trying to understand G.INP a bit better.

[michty_me]

Have you set the settings in the HH5 to use WAN?
When I have been checking stats, I have one cable from LAN1 on HG612 to Wan port on my Asus router.
Second cable from LAn 2 on HG612 to LAN1 on the Asus. This allows me to view stats on my main PC. I could never get HG612 stats to work so just used DSLstats.

[N0STIE]

Ok rebooted my PC and it seems its working now LOL.

Having access to 192.168.1.1 and to 192.168.1.254 (HH5)

But I didnt have to set up PPPoE connection on my PC why is that? The connection normally goes HH5->PC via ethernet. The modem didnt change anything to be honest. Latency is basically the same, bandwith as well.

How can I access stats via telnet?

[burakkucat]

But I didnt have to set up PPPoE connection on my PC why is that?

Because the HH5 manages the PPP session.

How can I access stats via telnet?

From your web-browser:

• Entering 192.168.1.254 into the address bar will take you to the GUI of the HH5
• Entering 192.168.1.1 into the address bar will take you to the GUI of the HG612

From your computer's command line telnet 192.168.1.1 will connect you to the HG612's command line interface. Login to the HG612 with admin, password admin and then, at the ATP> prompt, enter sh. At the busybox shell prompt, enter xdslcmd --help.

[N0STIE]

When I type xdslcmd --help I am getting this:

Welcome Visiting Huawei  Home Gateway
Copyright by Huawei Technologies Co., Ltd.
Login:admin
Password:
ATP>sh


BusyBox v1.9.1 (2014-01-21 16:44:38 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.


# xdslcmd --help
Usage: xdslcmd start [--up] <configure command options>
       xdslcmd stop
       xdslcmd connection [--up] [--down] [--loopback] [--reverb]
           [--medley] [--noretrain] [--L3] [--diagmode] [--L0]
           [--tones <r1-r2,r3-r4,...>] [--normal] [--freezeReverb] [--freezeMedl
ey]
       xdslcmd configure/configure1 [--mod <a|d|l|t|2|p|e|m|M3|M5|v>] [--lpair <
(i)nner|(o)uter>]
           [--trellis <on|off>] [--snr <snrQ4>] [--bitswap <on|off>] [--sesdrop
<on|off>]
           [--sra <on|off>] [--CoMinMgn <on|off>] [--i24k <on|off>] [--phyReXmt
<0xBitMap-UsDs>]
           [--Ginp <0xBitMap-UsDs>] [--TpsTc <0xBitMap-AvPvAaPa>] [--monitorTone
 <on|off>]
           [--profile <0x00 - 0xFF>|<"8a |8b |8c |8d |12a |12b |17a |30a">] [--u
s0 <on|off>]
           [--dynamicD <on|off>] [--dynamicF <on|off>] [--SOS <on|off>] [--maxDa
taRate <maxDsDataRateKbps maxUsDataRateKbps maxAggrDataRateKbps>]
           [--forceJ43 <on|off>] [--toggleJ43B43 <on|off>]
       xdslcmd bert [--start <#seconds>] [--stop] [--show]
       xdslcmd afelb [--time <sec>] [--tones] [--signal <1/2/8>]
       xdslcmd qlnmntr [--time <sec>] [--freq <msec>]
       xdslcmd inm [--start <INMIATO> <INMIATS><INMCC><INM_INPEQ_MODE><INM_INPEQ
_FORMAT>] [--show]
       xdslcmd snrclamp [--shape <shapeId>] [--bpshape [bpIndex-bpLevel,]]
       xdslcmd nlnm [--show ] [--setThld <Thld_Num_Tones>]
       xdslcmd diag [--logstart <nBytes>] [--logpause] [--logstop] [--loguntilbu
fferfull <nBytes>] [--loguntilretrain <nBytes>] [--dumpBuf <sizeKb>]
       xdslcmd info [--state] [--show] [--stats] [--SNR] [--QLN] [--Hlog] [--Hli
n] [--HlinS] [--Bits]
           [--pbParams] [--linediag] [--linediag1] [--reset] [--vendor] [--cfg]
       xdslcmd profile [--show] [--save] [--restore]
       xdslcmd --version
       xdslcmd --help
#
#

[N0STIE]

just woke up and checked my latency if something changed and shocked at the same time. DLM has kick in and added massive amount of interleaving to my line and destroyed my line  - ping to bbc.co.uk went up to 35ms from 21ms and upload speed dropped from 8mbps to 6mbps. You can check my stats on mydslwebstats.co.uk nickname: N0STIE
I think I am gonna swap it back to eci/r as this is unnacceptable.

Attached a picture aswell.

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   1
Last initialization procedure status:   0
Max:   Upstream rate = 6056 Kbps, Downstream rate = 49740 Kbps
Bearer:   0, Upstream rate = 6928 Kbps, Downstream rate = 42833 Kbps

Link Power State:   L0
Mode:         VDSL2 Annex B
VDSL2 Profile:      Profile 17a
TPS-TC:         PTM Mode(0x0)
Trellis:      U:ON /D:ON
Line Status:      No Defect
Training Status:   Showtime
      Down      Up
SNR (dB):    6.1       6.0
Attn(dB):    22.2       0.0
Pwr(dBm):    12.6       5.8
         VDSL2 framing
         Bearer 0
MSGc:      18      33
B:      63      80
M:      1      1
T:      64      58
R:      16      16
S:      0.0475      0.3716
L:      13464      2088
D:      1137      87
I:      80      97
N:      80      97
         Counters
         Bearer 0
OHF:      4238272      600654
OHFErr:      0      0
RS:      813665662      1409258
RSCorr:      34172      3
RSUnCorr:   0      0

         Bearer 0
HEC:      0      0
OCD:      0      0
LCD:      0      0
Total Cells:   799048578      0
Data Cells:   1451085      0
Drop Cells:   0
Bit Errors:   0      0

ES:      31      3
SES:      11      0
UAS:      91      80
AS:      9709

         Bearer 0
INP:      5.00      2.50
INPRein:   0.00      0.00
delay:      13      8
PER:      2.29      16.22
OR:      83.82      19.22
AgR:      42917.15   6947.21

Bitswap:   4627/4627      0/0

Total time = 9 hours 59 min 40 sec
FEC:      235711      24
CRC:      3898      4
ES:      31      3
SES:      11      0
UAS:      91      80
LOS:      1      0
LOF:      6      0
LOM:      0      0
Latest 15 minutes time = 14 min 40 sec
FEC:      3285      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Previous 15 minutes time = 15 min 0 sec
FEC:      3629      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Latest 1 day time = 9 hours 59 min 40 sec
FEC:      235711      24
CRC:      3898      4
ES:      31      3
SES:      11      0
UAS:      91      80
LOS:      1      0
LOF:      6      0
LOM:      0      0
Previous 1 day time = 0 sec
FEC:      0      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Since Link time = 2 hours 41 min 49 sec
FEC:      34172      3
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
#

Stats recorded 25 jun 2015 09:00:01

DSLAM/MSAN type:           IFTN:0xb204 / v0xb204
Modem/router firmware:     AnnexA version - A2pv6C038m.d24j
DSL mode:                  VDSL2 Profile 17a
Status:                    Showtime
Uptime:                    2 hours 44 min 49 sec
Resyncs:                   0 (since 25 jun 2015 08:51:47)
         
            Downstream   Upstream
Line attenuation (dB):     22,2      0,0
Signal attenuation (dB):   Not available on VDSL2      
Connection speed (kbps):   42833      6928
SNR margin (dB):           6,0      6,0
Power (dBm):               12,6      5,8
Interleave depth:          1137      87
INP:                       5,00      2,50
G.INP:                     Not enabled      

RSCorr/RS (%):             0,0041      0,0001
RSUnCorr/RS (%):           0,0000      0,0000
ES/hour:                   2,73      0,12