Why do some companies get depeered and some don't?

[blakjak at blakjak.net (Mark Foster)]

I'm sure someone else must've seen it before.

Surely even assymetric peering agreements are mutually beneficial... ISPs 
are also content providers, either directly or through their customers... 
peering is going to have a flow-on effect in terms of reducing the cost of 
offering content to the people you peer with too, right?

Why all the focus on even or non-even-ness of up/down ratios in the first 
place?

Mark.

On Tue, 4 Nov 2008, Mike Lyon wrote:

> Those with bad or uneven ratios then purchase transit and don't let
> themselves get depeered...
>
> On 11/1/08, Nelson Lai <nelson.lai at indiatimes.com> wrote:
>> What I mean is, how come networks like Teleglobe, Limelight, etc. don't get
>> depeered by others, but Cogent does? I'm sure Cogent isn't the only one with
>> bad ratios.
>>
>>
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