Not the Cheapest option out there but the most rock solid one I have found is to install the extended service/multi service cards in the BNG and do it locally there. We are currently using both Juniper MX480/960 with MS-MPC cards and Nokia 7750 SR with ISA or ESA cards. Its also well worth running dual stack IPv6 as you can bypass 40%+ traffic from the CGN process for all that CDN traffic.

From: NANOG <nanog-bounces+tony=wicks.co.nz@nanog.org> On Behalf Of Steve Saner
Sent: Friday, 19 February 2021 5:39 am
To: nanog@nanog.org
Subject: CGNAT

We are starting to look at CGNAT solutions. The primary motivation at the moment is to extend current IPv4 resources, but IPv6 migration is also a factor.

We've been in touch with A10. Just wondering if there are some alternative vendors that anyone would recommend. We'd probably be looking at a solution to support 5k to 15k customers and bandwidth up to around 30-40 gig as a starting point. A solution that is as transparent to user experience as possible is a priority.

Thanks

--

Steve Saner

ideatek HUMAN AT OUR VERY FIBER

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