Up to 8 x 10GE/1GE SFP+ optical ports for mid-tier aggregation and high-speed base station connectivity.

In the old days, this meant minutes of convergence time. The network would reconverge, the routers would argue over spanning trees, and the users would scream.

Bidirectional Forwarding Detection (BFD) down to 3.3ms intervals, IEEE 802.1ag/ITU-T Y.1731 (Ethernet OAM), and MPLS OAM.

Hot-swappable power modules and fan trays. Network-Level Protection: