Hello!
I'm happy to share information about OTSN.
What is OTSN
To improve the utilization of optical networks, carriers effectively divide the existing optical network resources, such as optical NEs, ports, and links, into disjoint sets. Each set forms a closed logical network, which is called optical transmission slicing network (OTSN).
Because the OTSN is used at the physical layer of the Open System Interconnection (OSI) reference model, the OTSN is also called Layer 1 Virtual Private Network (L1VPN). The physical layer isolation feature enables physical isolation between virtual OTSN subnets, improving service transmission security within an OTSN. The OTSN technology can be used to implement segment management for optical network resources and grant different enterprise users exclusive rights to specified optical network resources, which can be classified by granularities such as NEs, slots, ports, links, and wavelengths, thereby achieving the dedicated use of private networks.
Benefits of the OTSN
Benefits to Carriers
1. With the OTSN virtual subnet isolation capability, carriers can provide isolated OTSN services for different enterprise customers without increasing or slightly increasing infrastructure investment, increasing bandwidth profits.
2. Through the NBIs that comply with the ACTN standard, NCE can be easily integrated with the third-party tenant management system. Different OTSN subnets can be leased to different enterprise users to support the Wholesale business model innovation of carriers. For example, a German carrier uses the OTSN capability of NCE in the tenant system to lease different virtual subnets to different VIP tenants. In this way, the carrier sells private networks, instead of selling private lines.
Benefits to Enterprise Users
1. Provides high service security.
Hard pipe isolation between OTSNs ensures high service security for OTNs.
2. Shortens the TTM.
The physical network construction is reduced. The OTSN can greatly shorten the TTM to support quick service rollout.
3. Supports self-service O&M.
Enterprise users have self-service O&M capabilities in the OTSN, such as private line provisioning, changing, monitoring, and initial troubleshooting. From the perspective of enterprise users, it seems that users have their own optical networks. By clicking-mode configuration, enterprise users can implement quick service provisioning and proper traffic scheduling.
4. Supports elastic capacity expansion.
The OTSN is oriented to enterprise users. Enterprise users can rent carriers' network resources based on their bandwidth requirements. In the future, they can apply to carriers for capacity expansion and coverage expansion based on service growth, without affecting existing services.
The end！
Thhank you!
