Latency/speed to international servers varying greatly for the last week or so.
Latencies to west coast US varying between 320 to 560 ms.
Routing also seems to be changing a lot - via chennai/singapore, then via west coast then via london, then via new york.
Peering with AT&T in the US seems to be always pretty awful.
Before anyone suggests ; this isn't a dns issues, nor a line issue [ changing dns servers is irrelevant for routing problems, and my snr/atten/local line quality are all fine ].
In the past the inflated latencies only seemed to happen during the 7:30am - 8am period; recently they keep happening at any time during the day.
Dallas - central US
San Francisco - west coast US
East coast - NJ
London
Australia
ping to cnet.com :
Anyone know what's going on ?Code:Reply from 216.239.122.40: bytes=32 time=497ms TTL=243 Reply from 216.239.122.40: bytes=32 time=501ms TTL=243 Reply from 216.239.122.40: bytes=32 time=511ms TTL=243 Reply from 216.239.122.40: bytes=32 time=513ms TTL=243 Reply from 216.239.122.40: bytes=32 time=512ms TTL=243 Reply from 216.239.122.40: bytes=32 time=513ms TTL=243 Reply from 216.239.122.40: bytes=32 time=513ms TTL=243 Reply from 216.239.122.40: bytes=32 time=520ms TTL=243 Reply from 216.239.122.40: bytes=32 time=522ms TTL=243 Reply from 216.239.122.40: bytes=32 time=519ms TTL=243 Reply from 216.239.122.40: bytes=32 time=516ms TTL=243 Reply from 216.239.122.40: bytes=32 time=515ms TTL=243 Reply from 216.239.122.40: bytes=32 time=518ms TTL=243 Reply from 216.239.122.40: bytes=32 time=506ms TTL=243 Reply from 216.239.122.40: bytes=32 time=506ms TTL=243 Reply from 216.239.122.40: bytes=32 time=514ms TTL=243 Reply from 216.239.122.40: bytes=32 time=516ms TTL=243 Reply from 216.239.122.40: bytes=32 time=523ms TTL=243 Reply from 216.239.122.40: bytes=32 time=532ms TTL=243 Reply from 216.239.122.40: bytes=32 time=539ms TTL=243 Reply from 216.239.122.40: bytes=32 time=546ms TTL=243 Reply from 216.239.122.40: bytes=32 time=541ms TTL=243 Reply from 216.239.122.40: bytes=32 time=528ms TTL=243 Reply from 216.239.122.40: bytes=32 time=533ms TTL=243 Reply from 216.239.122.40: bytes=32 time=543ms TTL=243 Reply from 216.239.122.40: bytes=32 time=544ms TTL=243 Reply from 216.239.122.40: bytes=32 time=544ms TTL=243 Reply from 216.239.122.40: bytes=32 time=505ms TTL=243 Reply from 216.239.122.40: bytes=32 time=501ms TTL=243 Reply from 216.239.122.40: bytes=32 time=519ms TTL=243 Reply from 216.239.122.40: bytes=32 time=530ms TTL=243 Reply from 216.239.122.40: bytes=32 time=541ms TTL=243 Reply from 216.239.122.40: bytes=32 time=544ms TTL=243 Reply from 216.239.122.40: bytes=32 time=549ms TTL=243 Reply from 216.239.122.40: bytes=32 time=539ms TTL=243 Reply from 216.239.122.40: bytes=32 time=535ms TTL=243 Reply from 216.239.122.40: bytes=32 time=536ms TTL=243 Reply from 216.239.122.40: bytes=32 time=544ms TTL=243 Reply from 216.239.122.40: bytes=32 time=552ms TTL=243 Reply from 216.239.122.40: bytes=32 time=533ms TTL=243 Reply from 216.239.122.40: bytes=32 time=513ms TTL=243 Reply from 216.239.122.40: bytes=32 time=515ms TTL=243 Reply from 216.239.122.40: bytes=32 time=525ms TTL=243 Reply from 216.239.122.40: bytes=32 time=537ms TTL=243 Reply from 216.239.122.40: bytes=32 time=544ms TTL=243 Reply from 216.239.122.40: bytes=32 time=547ms TTL=243 Reply from 216.239.122.40: bytes=32 time=545ms TTL=243 Reply from 216.239.122.40: bytes=32 time=541ms TTL=243 Reply from 216.239.122.40: bytes=32 time=542ms TTL=243 Reply from 216.239.122.40: bytes=32 time=540ms TTL=243 Reply from 216.239.122.40: bytes=32 time=527ms TTL=243 Reply from 216.239.122.40: bytes=32 time=532ms TTL=243 Reply from 216.239.122.40: bytes=32 time=533ms TTL=243 Reply from 216.239.122.40: bytes=32 time=540ms TTL=243 Reply from 216.239.122.40: bytes=32 time=540ms TTL=243 Reply from 216.239.122.40: bytes=32 time=542ms TTL=243 Reply from 216.239.122.40: bytes=32 time=544ms TTL=243 Reply from 216.239.122.40: bytes=32 time=543ms TTL=243 Reply from 216.239.122.40: bytes=32 time=529ms TTL=243
Just to add; snr/atten values:
Local Tx Power:6.3 dB
Remote Tx Power:12.5 dB
Local Line Atten.: 9.0 dB
Remote Line Atten.:5.0 dB
Local SNR Margin: 31.5 dB
Remote SNR Margin:18.5 dB
DSL Standard:ADSL2+



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