CGNAT, which is also known as Large Scale NAT, is a buzzword for a highly-scalable NAT device that sits between the CPE and a core network. If the device being used is an MX Series, well now, that device is very scalable, and it can take your current Network Address Translation usage and truly make it carrier grade. It’s all in how you set up the MX. What you need is a JTAC engineer to explain the ins and outs of the MX Series, and that’s what Joe Naughton does in this book. He provides the configurations, the feature sets, the application layer gateways, and the syslogs you need to make the MX hum. There’s a troubleshooting chapter written as only a JTAC engineer can, as well as a scalable use case that puts some load balancing MX features to the test. However you define CGNAT it begins with MX.
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