For study of Juniper EVPN technology I recommend to read this materials (in this particular order):
- Juniper QFX10000 Series book;
- EVPN whitepaper;
- Advanced Data Center Switching (ADCX) course materials;
- EVPN Day One book;
- L3GW VMTO whitepaper;
- MX L2VPN Feature Guide;
- QFX EVPN/VXLAN Feature Guide.
EVPN is definitely the core topic of JNCIE-DC lab, so I need to study all of this thoroughly. Firstly I need to read (and understand) all this stuff, and later on I plan to heavily practice all EVPN related topics in my virtual lab (vMX and vQFX).