My investigation revealed that it will be a good idea for Juniper to Merge with Arista.
Contrail, Mist, and Appformix features will be ported to Arista. Excellent features of EOS can be leveraged in JunOS. If not, QFX can be replaced with Arista and MX/SRX will be with JunOS.
Arista to pay 1 share for 8-10 share Juniper shares. This merger will create a great opportunity and a major threat to Cisco. This will be a 1+1=3 equation and together can become a $100B company.