1. Carrier IP Backbone/Metropolitan Area Core/Aggregation Layer: Deployed at the provincial backbone/metropolitan area core and aggregation layers, providing 100GE high-speed interconnection, carrying all services including 5G, home broadband, and enterprise private lines, and supporting SRv6 intelligent dispatch.

2. Large Enterprise/Finance/Power Wide Area Core: Serving as the wide area core for enterprise headquarters/industry applications, carrying L3VPN/Psec cross-regional interconnection, ensuring highly reliable transmission of critical services such as financial transactions, power dispatch, and government office work.

3. IDC/Cloud Data Center Egress/Interconnection: Serving as the IDC egress and DCI interconnection node, providing high-density 100GE ports, supporting VxLAN/EVPN cloud-network convergence, and achieving cloud-edge collaboration and elastic expansion.

4. Broadcast/Transportation/Energy Private Network Core: Adapted to private network scenarios such as broadcast video distribution, rail transit, and energy dispatch, providing highly reliable, low-latency transmission, and supporting industry features such as multicast and clock synchronization.

Core functional characteristics

• 1. Distributed hardware forwarding and 2T platform are based on programmable NP forwarding, with a maximum bandwidth of 2T per slot, supporting high-density line cards (such as 48 × 10GE per slot), non blocking switching, and line speed forwarding in complex routing environments.
• 2. Comprehensive IP/MPLS and VPN capabilities support L3VPN (MPLS/BGP VPN), L2VPN (VPLS/VLL/EVPN), and multicast VPN (mVPN); MPLS TE, SR MPLS, SRv6, and TI-LFA fast re routing meet the requirements of E2E service bearer and low latency protection.
• 3. IPv6+Smooth Evolution Dual Stack is fully supported, including transition technologies such as 6PE, manual/automatic tunneling, 6to4, GRE, ISATAP, etc; Supports NAT444, DS Lite, NAT64, and is compatible with IPv4/IPv6 hybrid networking.
• 4. High reliability design equipment level: main control, switching network, power redundancy, passive backplane, hot swappable; Network level: BFD rapid detection (200ms switching) IP/LDP/VPN/TE FRR； Business level: VPN FRR, E-VRRP, PW Redundancy, E-Trunk; Support NSF/NSR/ISSU, software hot patch smooth upgrade.
• 5. Improve QoS and security, with precise scheduling and congestion avoidance for each circuit board; Support DiffServ, MPLS HQQoS, DS-TE; The security features include ACL, URPF, GTSM, DHCP Snooping, ARP/DDoS protection, SSH v2, IPSec, and NetStream.
• 6. Virtualization and SDN capabilities support one virtual multiple (VRF) and multiple virtual one, resource isolation, and device level backup; Hardware SDN Ready, compatible with OpenFlow, supports wide area SDN deployment, and adapts to cloud network convergence scenarios