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OptiX PTN 7900 Transmission Systems

Huge-capacity Packet Transport Network (PTN) transmission engine with Software-Defined Networking (SDN) architecture for simplified O&M and smooth migration to fully virtualized networking, LTE, and a variety of value-added services.

Working at the PTN core layer, Huawei’s OptiX PTN 7900 supports 40 GE/100 GE interfaces — or replace with a 400 GE board — with forwarding capacity up to 3.84 Tbit/s. 

Energy-efficient electronics, dynamic power management based on the system’s configuration and operations, and intelligent heat dissipation features conserve power and reduce CO2 emissions by up to 40 tons annually over traditional PTNs.

Future-proof your next-generation core network with Huawei’s super high-performance, SDN-ready, OptiX PTN 7900 Packet Transmission Systems

  • Standard application interfaces allow for user-defined programming for rapid provisioning of new services
  • SDN architecture separates control and forwarding planes for decoupling of management services and simplified O&M
  • Huge processing and forwarding capabilities support resilient scheduling and performance at the core layer
  • Carrier-grade reliability performance optimizes uptime availability and protects core network assets
  • SDN design simplifies provisioning, management, and expansion





Subrack Dimensions (W x D x H)

496 mm x 295 mm x 1,822 mm

496 mm x 295 mm x 1,340 mm

498 mm x 285 mm x 650 mm

Working Voltage (V)

Uses -48V power:-40 to -57.6 (V)

Environmental Requirements

Work temperature -5℃ to 45℃, Storage temperature -40℃ to 70℃, Relative humidity 5% RH to 95% RH, Altitude: ≤ 4,000 m

Switching Capacity (Gbit/s)

12.8 Tbit/s

9.6 Tbit/s

4.8 Tbit/s

Interface Types

cSTM-1, cSTM-4, FE, GE, 10 GE, 40 GE, and 100 GE

Service Types

E-Line, E-LAN, L3VPN, and CES

Service Protection

LMSP, LAG, LSP APS, PW APS, Ring protection, IP/VPN FRR, and VRRP

Clock Synchronization

External clock, IEEE 1588v2, Synchronous Ethernet, and TDM clock synchronization