k elements Router Switch Fabric Properties Strictly nonblocking space diversity switch fabric Modular architecture built with four 120 Gbit/s modules Modules 1:4 redundancy Scalability From 120 to 480 Gbit/s with steps of 120 Gbit/s Route Processors Properties Completely hardware based Distributed processing 4 working route processors Route processors 1:4 redundancy Interfaces STM 1 SFP electrical Electrical 32 ports STM1, STM 4 SFP modules Gray optics 32 ports STM-16 SFP modules Gray optical 32 ports STM-64 XFP modules Gray optical 9 ports STM 128 Embedded TXT Gray optical 3 ports STM-64 Embedded TXT DWDM tunable (50 and 6 ports 100 GHz) STM-128 Embedded TXT DWDM tunable 3 ports (200 GHz) SFP modules Gray optical 32 ports 10GbE XFP modules Gray optical 4 ports 10GbE XFP modules DWDM fixed 4 ports wavelength (100 GHz) Telecommunication Networks TABLE 7.8 Summary of the Feature List of a Practical Integrated Edge Router-BRAS BRAS/Edge Router Platform Mechanic 48.26 X 57.78 X 40.64 cm sub-rack 16 slots, 12 single slot units, 2 double slots units (redundant switch fabric) Platform redundancy Power-feed redundancy 1:1 Fan-controller redundancy 1:1 Control Duplicated network element controller in hot mirroring configuration Management and Configuration SMNP support SNMPv1 SNMPv2c SNMPv3 IP protocol suite BGP, IS-IS, OSPF, RIP, MPLS, Virtual Routers; IPv4 and IPv6 Mobile aggregation Mobile IP home agent Encapsulation methods IP/PPP, IP/Frame relay, P/ATM, IP/PPP/POS, IP / Carrier Ethernet Layer 2 protocols Pure PPP, ATM, Ethernet, frame relay Subscribers management Section termination, AAA functionalities, security via firewall, subscriber VPN management Multicast Full multicast functionality supported MPLS complete protocol suite Router Switch Fabric Properties Strictly nonblocking space diversity switch fabric 40 Gbit/s capacity in one double slot card 1:1 Switch fabric redundancy Route Processors Properties Completely hardware based, dedicated route processor Route processor 1:1 redundancy Interfaces Embedded Electr