Enterprise Hubs Overview
https://www.juniper.net/documentation/en_US/cso5.0/topics/concept/cp-gateway-sites-overview.html
Enterprise Hub: An enterprise hub is an SD-WAN site that is used to carry site-to-site traffic between on-premise spoke sites and to break out backhaul (central breakout) traffic from on-premise spoke sites.
Provider Hub:
onboard Hub
1- Onboard branch / Active Device [ + Stage 1 configuration ]
2- Intent based security policy: Firewall Policy ( Site, Destination/App, Option/Action
3- SD-WAN Configuration:
2a- Define SLA Profile: mapping Class Vs throughput/Latency/packet Loss/Jitter/Delay
2b- SD-WAN Policy: Site, Application, SLA Profile
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SRX300:
+ interface ge-0/0/0.0 family inet dhcp-client
+ password recovery ( juniper1 )