On Oct 15, 2007, at 9:48 AM, Mike Leber wrote:
>
>
> On Mon, 15 Oct 2007, Bradley Urberg Carlson wrote:
>> I have a few customers' customers, who appear at a
local IX. Due to
>> the MLPA-like nature of the IX, I hear their
prefixes both at the IX
>> and via my own transit customers. I normally use
localpref to prefer
>> customer advertisements over peers'
advertisements.
>>
>> There is a customer's customer who is advertising
more-specifics
>> at the
>> IX (and using a different source AS, to boot)
>
> Time to time you will see this.
>
> You could also hear the more specifics from another
peer that is
> one of
> their transit providers or you could hear them via one
of your transit
> providers.
>
>> I can think of a couple ways to prevent hearing
these, but thought I
>> should ask for suggestions first.
>
> You can do all kinds of things to other network's
routes especially
> when
> those routes aren't from your customers and what you
are doing doesn't
> break connectivity (or solves a capacity problem and
improves
> connectivity). However, if you tweak routes of a
paying customer
> then you
> will need to consider what your answer to your customer
will be for
> overriding their traffic engineering.
In this case it's his customer's customer... so no answer
_necessary_
(as I've learnt from experience)
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