[AusNOG] Router on a stick for a production environment

[James Mcintosh]

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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