[AusNOG] Router on a stick for a production environment

[Matt Ayre]

Buffers on the typical 10G ToR switches you might be thinking about using
are one of the main limiting factors that come to mind, if you would end up
having many 10G interfaces forwarding onto one (or a bundle) towards the
router on a stick especially with bursty internet traffic profiles it can
easily create micro bursts bigger than the buffers can handle..

Success largely depends on your traffic scale, profile and how
oversubscribed

Other than that you'd need to be able to tune your protocols so that they
converge at a reasonable speed through keepalive etc since you cant detect
link failure any more on either side

I think that's pretty much it but it's just plain nasty looking isnt it :)

On 29 April 2015 at 09:44, James Mcintosh <james.mcintosh at rocketmail.com>
wrote:

> Hi Noggers,
>
> Are any of you out there running "router on a stick" in your production
> environments?
>
> Traditionally this was only set up in lab/test environments but given how
> expensive 10Gbps+ adapters are from some vendors, and that additional
> adapter capability often forces you up to their next most expensive router
> models is there any reason not to run it in production?
>
> Most ISP's already run hundreds or even thousands of sub-interfaces per
> physical interface so is there any tangible downside to to just using a
> single physical interface for all the in/out connectivity to your router?
>
> -James
>
>
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