1 rack for the switch fabric 1 rack for routing processors 1-2 racks for line cards Platform redundancy Power-feed redundancy 1:1 Fan-tray redundancy 1:1 Fan-controller redundancy 1:1 Sub-rack control card redundancy 1:1 Fabric-card redundancy 1:4 Sub-rack communication management card redundancy 1:1 Backplane 10GbE electrical bus using XAUI protocol and hot standby protection Control Duplicated network element controller in hot mirroring configuration Inter-rack 10 GbE protected interconnection Management and Configuration SMNP support SNMPv1 SNMPv2c SNMPv3 IP protocol suite Full support for IPv4 and IPv6 MPLS capability Full MPLS protocol suite GMPLS capability GMPLS protocol suite with UNI interface toward transport layer network elements Router Switch Fabric Properties Strictly nonblocking space diversity switch fabric Modular architecture built with 4 Tbit/s modules Modules 1:4 redundancy In the maximum capacity configuration a full rack is devoted to the fabric Scalability From 4 to 32 Tbit/s with steps of 4 Tbit/s Route Processors Properties Completely hardware based Distributed processing up to 24 working route processors (20 working, 4 protection) Route processors 1:5 redundancy Scalability From 8 to 24 route processors in pace with the capacity growth Interfaces STM-16 SFP modules Gray optical 24 ports STM-64 XFP modules Gray optical 6 ports STM 128 Embedded TXT Gray optical 2 ports STM-64 Embedded TXT DWDM tunable (50 and 4 ports 100 GHz) STM-128 Embedded TXT DWDM tunable 2 ports (200 GHz) SFP modules Gray optical 32 ports XFP modules Gray optical 2 ports Telecommunication Networks This is for sure the most high throughput machine that we are presenting as an example in this book, arriving to switch up to 32 Tbit/s throughput. Considering the average length of a packet of 100 bits, this means 320 billion packets a second. This router class is the answer to the request for a global and convergent IP network, requiring all the traffic to be managed by IP/GMPLS machines. From a hardware point of view, suc