Sriram, Kotikalapudi (Fed) wrote on 13/03/2022 16:20:
Not sure why Ben even raised that question. To me, it doesn't seem
relevant. In the route leak detection procedures, the
receiving/validating AS does not require information about the nature
of ASes (RS or not RS) in the AS Path except for
Ben,
>I know of several transit providers that will allow customers to use an IXP as
>a kind of virtual access circuit (which itself is a poor idea), but I would be
>*very* surprised if any of them allow RS peerings to be the control plane
>interconnection (intentionally, at least).
Good.
>> If the underlying question is "should the ASPA path validation
>> algorithm have a corner case that accommodates this?", that is a
>> very, very firm "no" from me!
>
> aol
opologies, it seems i used an american idiom, and an antique one at
that. a few folk were brave enough to ask, so ...
> If the underlying question is "should the ASPA path validation
> algorithm have a corner case that accommodates this?", that is a
> very, very firm "no" from me!
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On 03/08, Christopher Morrow wrote:
> On Tue, Mar 8, 2022 at 2:36 PM Sriram, Kotikalapudi (Fed)
> wrote:
>
> > This question has relevance to the ASPA method for route leak detection.
> >
> > Is it possible that an ISP AS A peers with a customer AS C via a
> > non-transparent IXP AS B?
> > IOW,
On Tue, Mar 8, 2022 at 3:33 PM Robert Raszuk wrote:
>
> Right - but IMO route leaking can happen both in the Internet or in
> customer <- via IXP -> content provider interconnects.
>
> And in the latter case - especially for those with open peering policy -
> often going via RS. After all this
Right - but IMO route leaking can happen both in the Internet or in
customer <- via IXP -> content provider interconnects.
And in the latter case - especially for those with open peering policy -
often going via RS. After all this is how route servers are mainly used
today :) So both sides will
On Tue, Mar 8, 2022 at 3:15 PM Robert Raszuk wrote:
> Well I think the answer is - it depends.
>
> First IXP fabric can be used as pure L3 share LAN or can be used (and it
> is often the case) as a p2p emulated VLAN over such L3 shared LAN.
>
> Now if this is L3 shared LAN still customer and ISP
Well I think the answer is - it depends.
First IXP fabric can be used as pure L3 share LAN or can be used (and it is
often the case) as a p2p emulated VLAN over such L3 shared LAN.
Now if this is L3 shared LAN still customer and ISP may peer directly and
no third party traffic would be accepted
On Tue, Mar 8, 2022 at 2:36 PM Sriram, Kotikalapudi (Fed)
wrote:
> This question has relevance to the ASPA method for route leak detection.
>
> Is it possible that an ISP AS A peers with a customer AS C via a
> non-transparent IXP AS B?
> IOW, the AS path in routes propagated by the ISP A for
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