level3.net in Chicago - high packet loss?!?
Network Fortius
netfortius at gmail.com
Tue Sep 6 14:25:28 UTC 2005
And how exactly would you interpret the number returned by net_loss
(int), in a column called "LOSS", in reference to reachability of a
"hop" between two end points:
int net_loss(int at)
{
if ((host[at].xmit - host[at].transit) == 0)
return 0;
/* times extra 1000 */
return 1000*(100 - (100.0 * host[at].returned / (host[at].xmit -
host[at].transit)) );
} ?
Thanks,
Stef
Network Fortius, LLC
On Sep 6, 2005, at 7:45 AM, Robert E.Seastrom wrote:
>
> Network Fortius <netfortius at gmail.com> writes:
>
>
>> Anybody having any idea why such a high packet loss on lever3's
>> network, in Chicago?
>>
>
> End-user misinterpreting output from MTR. This network does not
> appear to have any packet loss end-to-end.
>
> ---Rob
>
>
>
>> Stef:~ scm$ mtr -r www.yahoo.com
>> ...
>> tbr1-p010802.cgcil.ip.att.net 0% 16 16 15.12
>> 24.21 49.26
>> ggr2-p310.cgcil.ip.att.net 0% 16 16 13.18
>> 42.66 118.99
>> so-1-1-0.edge1.chicago1.level3.net 0% 16 16 14.48
>> 35.84 126.48
>> so-2-1-0.bbr1.chicago1.level3.net 63% 6 16 14.44
>> 43.74 79.97
>>
>> ^^^^^^^
>> as-1-0.bbr2.sanjose1.level3.net 0% 16 16 61.95
>> 80.64 176.01
>> ge-10-2.ipcolo3.sanjose1.level3.net 0% 16 16 63.37
>> 95.61 148.46
>> unknown.level3.net 0% 16 16 63.34
>> 86.46 168.62
>> unknown-66-218-82-217.yahoo.com 0% 16 16 62.09
>> 88.91 127.58
>> p4.www.scd.yahoo.com 0% 16 16 64.51
>> 89.96 183.79
>>
>> TIA,
>> Stef
>> Network Fortius, LLC
>
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