The Juniper M series is a line of multiservice edge routers designed for enterprise and service provider networks. The different models are M7i, M10i, M40e, M120, and M320 platforms with 5 Gbit/s up to 160 Gbit/s of full-duplex throughput.
Features and services supported in de M series router include a broad array of VPN’s, advanced IP/MPLS edge routing services, real time voice and video, bandwidth on demand,, rich multicast of premium content, granular accounting and IPv6 services.
Fun fact, the M40 router was the first product by Juniper Networks, which was released in 1998.