[ixpmanager] ixpmanager Digest, Vol 79, Issue 6

[Haider Ali]

Then what is the significance of selecting policy in the IXP manager if IXP
manager doesnt interfere for any behavior ISP will do? I mean if ISP is
independent then how is the open or selective peering handled?

Like, If an ISP selects peering policy: open instead of selective and do
opposite that is it still use communities for selective advertisements then
is it possible for an ISP?


-Haider


On Sun, Aug 4, 2019 at 4:00 PM <ixpmanager-request at inex.ie> wrote:

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> Today's Topics:
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>    1. How is Peering policy handled in the backend? (Haider Ali)
>    2. Re: How is Peering policy handled in the backend?
>       (Nick Hilliard (INEX))
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 3 Aug 2019 16:06:29 +0500
> From: Haider Ali <haiderrana45 at gmail.com>
> To: INEX IXP Manager Users Mailing List <ixpmanager at inex.ie>
> Subject: [ixpmanager] How is Peering policy handled in the backend?
> Message-ID:
>         <CADKV7BR4aGtmqOEn7DCEtBHhwUwi=
> To7YyxkNdLYPwOSzxEbrg at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Dear Community,
>                            How is the peering policy implemented in the IXP
> manager at the backend? Is it done by route server? If the route server is
> not used then will the selective peering still can occur? If yes then how?
>
> Also, if the route server is handling all the peering policies such as open
> or selective then how is it handling?  Explaining the question through an
> example. Suppose there are two ISPs: ISP A and ISP B. Can an ISP A provide
> the prefixes in selective peering through its customer portal that I want
> these prefixes to go to ISP B and vice versa. If yes, then how is this
> thing implemented? Is it implemented through route server or what? If it is
> implemented through route server then how? Can you share any link for such
> configurations?
>
> So, the basic question is:
> How is selective peering being handled at the backend?
>
> -----------
> One more question is that is there any specific application we should use
> for route server? I am using quagga for route server.
>
> Thanks for always helping the deployment of IXP manager in Pakistan
> Sincerely,
> Haider
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> ------------------------------
>
> Message: 2
> Date: Sat, 3 Aug 2019 15:36:05 +0100
> From: "Nick Hilliard (INEX)" <nick at inex.ie>
> To: INEX IXP Manager Users Mailing List <ixpmanager at inex.ie>, Haider
>         Ali <haiderrana45 at gmail.com>
> Subject: Re: [ixpmanager] How is Peering policy handled in the
>         backend?
> Message-ID: <8d30b101-3a98-5888-7ecf-8a70d5e64826 at inex.ie>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Haider Ali wrote on 03/08/2019 12:06:
> > How is selective peering being handled at the backend?
>
> It isn't.  The participants at the IXP determine how they want their
> prefixes to be exchanged.
>
> If they have bilateral BGP sessions, then this is entirely a matter for
> them, and the IXP has no way of interfering with this.  If they choose
> to use the route servers, then:
>
> outgoing prefixes: they can use the standard community tags if they want
> their prefixes to be sent or blocked for other RS clients.
>
> incoming prefixes: they can use standard BGP as path filters or prefix
> lists to filter out what they don't want to see.
>
> The IXP doesn't control any of this.  The control is solely in the hands
> of the IXP participants because they are better at deciding what's most
> appropriate for their routing policy.
>
> Nick
>
>
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> End of ixpmanager Digest, Vol 79, Issue 6
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