Telecom infrastructure provider UTStarcom announced progress with China Unicom Research Institute in their cooperative development and field testing of a disaggregated networking solution for 5G transport networks.
China Unicom Research Institute is a wholly owned subsidiary of China Unicom, one of the major mobile carriers in China.
The partners noted that the disaggregation of hardware and software in telecommunication networks is drawing serious interest in the telecom industry, especially for 5G transport networks. Disaggregation promises many benefits, such as the potential to reduce the capital commitment and operating costs of transport networks, eliminating vendor lock-in, speeding up innovation. Disaggregated networking solutions can support a variety of operator requirements in a flexible and cost-efficient manner, the two companies said.
China Unicom said it is actively exploring open networking technologies. Since 2020, the subsidiary China Unicom Research Institute has been developing its own White Box Router (WBR) Network Operating System (NOS), named “CUNOS”, in cooperation with UTStarcom. Under the terms of this previously announced cooperation agreement, the NOS is based on an open-source network operating system adopted and integrated for use in the intended application scenario: the access segment of the 5G transport network, which operates as IP RAN transport based on Segment Routing technology. The CUNOS platform is designed to support a variety of hardware implementations that can be based on certain Broadcom DNX series and Centec switching chips, Intel x86 and ARM CPUs, and non-redundant “pizza-box” as well as redundant chassis platforms.
The partners also highlighted that the initial phase 1 features delivered in 2020 included the basic NOS framework, disaggregated architecture with ONIE support and hardware abstraction, L2/L3 forwarding, QoS, ACL, SyncE, and basic Netconf/YANG models. The recent phase 2 development offers many new features critical for the intended use of the solution on 5G network of China Unicom, such as:
-SR-MPLS forwarding
-EVPN over SR-MPLS support
-Ti-LFA, IP-FRR/VPN FRR
-Extended support of synchronization including support of IEEE1588v2
-BFD OAM support
-Extended multivendor integration of Netconf/YANG models for implementation of multivendor platform support
The solution based on the CUNOS operating system and deployed in the open network test environment successfully passed joint evaluation tests by China Unicom Research Institute, UTStarcom, and Purple Mountain Laboratories. Tests demonstrated stable and reliable operations, as well as functionality needed to carry 5G network traffic and related services.
Li Hua, UTStarcom’s CEO, commented, “The unique combination of our capabilities in NOS software development and in the design of carrier-grade redundant modular hardware platforms, as well as our extensive expertise in telecommunication networks technologies, brings great value to our customers. We enable them to build highly customized solutions optimal for their needs while significantly shortening time-to-market. This important milestone opens a path for deeper cooperation on both hardware platforms and software solutions in the future, and further strengthens UTStarcom’s position in this strategic field of 5G transport networking.”
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