Telkom ADSL KPI

davemc said:
Anybody using SAIX to play WoW online care to comment on this figure?
Click to expand...

384k going to Europe with the TCP hack on Windows XP is around 550-690ms. When it's not as busy (usually early mornings) I get around 440ms. I'm sure they're talking unshaped though?
 
AcidRaZor said:
384k going to Europe with the TCP hack on Windows XP is around 550-690ms. When it's not as busy (usually early mornings) I get around 440ms. I'm sure they're talking unshaped though?
Click to expand...

WOW.... I get 290-350ms on my IS accounts on my 384 line.

Average National Round-trip latency (ms) - 16.10
[/quote
How do they manage that? A friend of mine stays right by the Telkom tower and gets 8ms.... I get 25ms on whatever local site. On a 4Mb line I used to get about 20.... so how can one get it down to 16ms average? :eek:
Click to expand...
 
Code: 
root@srv31:~# ping 165.146.136.1
PING 165.146.136.1 (165.146.136.1) 56(84) bytes of data.
64 bytes from 165.146.136.1: icmp_seq=1 ttl=255 time=85.4 ms
64 bytes from 165.146.136.1: icmp_seq=2 ttl=255 time=23.3 ms
64 bytes from 165.146.136.1: icmp_seq=3 ttl=255 time=23.0 ms
64 bytes from 165.146.136.1: icmp_seq=4 ttl=255 time=21.5 ms
64 bytes from 165.146.136.1: icmp_seq=5 ttl=255 time=23.0 ms
64 bytes from 165.146.136.1: icmp_seq=6 ttl=255 time=35.7 ms

--- 165.146.136.1 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5012ms
rtt min/avg/max/mdev = 21.540/35.380/85.460/22.903 ms
root@srv31:~# ifconfig ppp2
ppp2      Link encap:Point-to-Point Protocol
          inet addr:165.146.136.124  P-t-P:165.146.136.1  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1452  Metric:1
          RX packets:127431 errors:0 dropped:0 overruns:0 frame:0
          TX packets:125503 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:170252613 (162.3 MB)  TX bytes:8127649 (7.7 MB)

root@srv31:~#
Am I really supposed to believe that I am one of the few with a round-trip latency of over 21ms to the ADSL gateway?

Their local-latency figures are definitely not based on the ADSL circuit figures.
 
nope, I get 11-13ms to certain local sites like myadsl.co.za and bidorbuy.co.za.
I am on a 4mb IS connection
 
These numbers look about right. Read carefully. Measured from edge server routers. That means the measurements cut out a whole bunch of bottlenecks, local loop, exchange behaviour, etc etc. Basically these are the measurments between two edge routers. Bit like measuring between two switches that are plugged into each other. For one how can you have a higher local packet loss than international if you are doing real world end to end testing. Once again Joe Public is having the wool pulled over his eyes. :mad:
 
MadMailMan said:
These numbers look about right. Read carefully. Measured from edge server routers. That means the measurements cut out a whole bunch of bottlenecks, local loop, exchange behaviour, etc etc. Basically these are the measurments between two edge routers. Bit like measuring between two switches that are plugged into each other. For one how can you have a higher local packet loss than international if you are doing real world end to end testing. Once again Joe Public is having the wool pulled over his eyes. :mad:
Click to expand...

Thank you.
 
I don't know if saix uses the same performance measurement, but on the telkom isp gateway they have the live national data with the following proviso...

System Description

Several clients are installed in the IPNet Access layer at main centres, to simulate DSL users connecting to SAIX. These clients are connected using Gigabit Ethernet and are shaped to simulate a 1Meg DSL connection. These statistics reflect the average performance across all these clients and serve as an indication of the expected DSL customer experience if the overheads produced by the DSLAM access network were to be excluded.

D
 
davemc said:
Anybody using SAIX to play WoW online care to comment on this figure?
Click to expand...

On Mal'Ganis (German server) I get around 450 ms. In the last few days it went up to around 610-625 ms.
 
No one knows how they measure these performance indicators. As far as we know it could be between their routers and dslam and not actual internet sites. That's what I suspect anyway.
 
Kosmik said:
Even the local looks unlikely - 16ms?
Click to expand...
Yeah that caught my eye too no ways, as well as those international where did they dream those figures up for an average. :confused::confused:
 
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