Question on peering strategies

Marty Strong marty at
Tue May 24 07:39:21 UTC 2016

Typically you would use a private VLAN between you and another participant in order to connect to them separately from the public peering VLAN. You would do this instead of a PNI in a situation where you’re in a different building from the other participant making a direct fibre more expensive than the value it would bring.

A public VLAN is essentially the peering VLAN anyway, so an all participants VLAN would be a little pointless. Perhaps a VLAN shared between a couple of members *may* be useful depending on those members’ use cases, although I can’t think of one off the top of my head.

Marty Strong
CloudFlare - AS13335
Network Engineer
marty at
+44 7584 906 055
smartflare (Skype)

> On 23 May 2016, at 23:24, Ken Chase <math at> wrote:
> And what benefit is there to this 'public' vlan service? A shared vlan between
> all participants (with some well organized numbering/indexing scheme)?
> TorIX (Toronto) is about to have an AGM here and this VLAN thing which has
> been in the air for 3 years will certainly be brought up again.
> /kc
> On Mon, May 23, 2016 at 07:19:03PM +0100, Marty Strong via NANOG said:
>> The usefulness of an elastic fabric as far as I can see it are:
>> - Can give you a private VLAN to some *cloud* providers that provide direct access to them in some other fashion than peering (assumedly for enterprises)
>> - Is spread across multiple buildings across a metro area
>> - Is elastic so can be divided between different services for different time periods
>> In a traditional peering sense it doesn???t really offer much value.
>> Just my two pence.
>> Regards,
>> Marty Strong
> -- 
> Ken Chase - Guelph Canada

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