[84125] in North American Network Operators' Group

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Re: level3.net in Chicago - high packet loss?!?

daemon@ATHENA.MIT.EDU (Network Fortius)
Tue Sep 6 11:09:24 2005

In-Reply-To: <20050906143645.67FB73BFDDA@berkshire.machshav.com>
From: Network Fortius <netfortius@gmail.com>
Date: Tue, 6 Sep 2005 10:09:17 -0500
To: nanog@merit.edu
Errors-To: owner-nanog@merit.edu



On Sep 6, 2005, at 9:36 AM, Steven M. Bellovin wrote:

> In message <38D1AE7F-52FA-4BCF-A32F-CF40FA958DC6@gmail.com>,  
> Network Fortius wr
> ites:
>
>>
>> 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:
>>
>>
> The hop not sending out the ICMP message for those packets, either
> because its CPU is overloaded or because of a configuration option to
> rate-limit them.
>
>         --Steven M. Bellovin, http://www.cs.columbia.edu/~smb

Thank you. The former seems close to what may have happened, with a  
possible impact beyond ICMP, as once having moved my client over to  
their Broadwing connection, their processing from Yahoo's site seems  
to have come back to where it was a few days ago.

Thanks again,
Stef
Network Fortius, LLC


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