Kitz Forum

Broadband Related => ADSL Issues => Topic started by: snadge on May 08, 2013, 03:05:42 AM

Title: odd ping result? ...rizla?
Post by: snadge on May 08, 2013, 03:05:42 AM

I was running JD Speedtester and noticed it was giving 36-38ms pings... hang on! I thought? I normally get 28-30ms so im up by 8ms - yet my Interleave Depth (96) and INP (1.04) are the same as before so hows this? - Iam sure i tested it since my last re-sync and I got my usual 28-30ms..?

any ideas whats causing this?

I forgot too tell Rizla (if your reading) after my last manual re-sync when I wanted to go back to DLM's TSNRM that my IP is now 2.120 :) as you said this showed I was on the new gateway or something??

stats:

Status: ShowtimeRetrain Reason: 8000
Channel: FAST, Upstream rate = 1204 Kbps, Downstream rate = 17600 Kbps
Link Power State: L0
Mode:                   ADSL2+
Channel:                Fast
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):       6.9             8.4
Attn(dB):       27.5            13.6
Pwr(dBm):       18.6            12.3
Max(Kbps):      21191           1256
Rate (Kbps):    17600           1204
                        G.dmt framing
K:              145(0)          16
R:              12              16
S:              1               8
D:              96              8
                        ADSL2 framing
MSGc:           51              15
B:              144             15
M:              1               8
T:              4               7
R:              12              16
S:              0.2846          3.6455
L:              4412            316
D:              96              8
                        Counters
SF:             27717929                28110721
SFErr(CRCErr):  235             7
RS:             2024720588              3773107
RSCorr:         357715          3015
RSUnCorr:       11529           0

HEC:            204             12
OCD:            0               0
LCD:            0               0
Total Cells:    1488539298              1502748459
Data Cells:     147054009               11892750
Drop Cells:     0
Bit Errors:     0               1373

ES:             271             105
SES:            2               277
UAS:            152             0
AS(Uptime):     449773

INP:            1.04            1.62
PER:            16.22           16.74
delay:          6.83            7.29
OR:             28.10           10.03

Bitswap:        37109   

Title: Re: odd ping result? ...rizla?
Post by: kitz on May 08, 2013, 06:57:48 AM

>>> I normally get 28-30ms so im up by 8ms - yet my Interleave Depth (96) and INP (1.04) are the same as before so hows this?

It may be something to do with your routing, or even how busy the link is.

Its not just interleaving that can affect latency. 
~ One of the hops may be experiencing some congestion.
~ You may be going via a different route, which may take a longer. You have no control over the routing.
   Ive known this happen many times in the past for eg when on BTw Ive seen my latency go up from 15ms to 28ms on a non-interleaved line purely down to a re-route of the exchange backhaul.   

Title: Re: odd ping result? ...rizla?
Post by: guest on May 08, 2013, 07:43:55 AM

Yeah my latency increased by 5ms or so when Sky moved my PPP session to the new (to me anyway) gateways.

Title: Re: odd ping result? ...rizla?
Post by: snadge on May 08, 2013, 07:15:12 PM

must be routing... back to 28ms now

cheers