Introduction

Juniper Networks Contrail Service Orchestration (CSO) transforms traditional branch networks, offering opportunities for high flexibility of the network, rapid introduction of new services, automation of network administration, and cost savings. The solution supports both Juniper Networks and third-party virtualized network functions (VNFs) that network providers use to create network services.

CSO Release 4.0.2 is a secure software-defined WAN (SD-WAN) solution that builds on the capabilities of CSO Release 4.0.0 and the Cloud CPE solution. The following are the highlights of the features available in Release 4.0.2:

• Secure OAM redundancy

• IPsec tunnel encryption

• PKI certificates

• PPPoE over ADSL or VDSL links

CSO can be implemented by service providers to offer network services to their customers or by Enterprise IT departments in a campus and branch environment. In these release notes, service providers and Enterprise IT departments are called service providers, and the consumers of their services are called customers.

The solution offers the following deployment models:

• Cloud CPE distributed deployment Model (distributed deployment)

  In the distributed deployment, customers access network services on a CPE device, located at a customer’s site. These sites are called on-premise sites in these release notes.

  Sites can be configured as one of the following types:

  • Hybrid WAN

  • SD-WAN

  In a distributed deployment:

  • Network Service Orchestrator, together with Network Service Controller, provides ETSI-compliant management of the life cycle of network service instances.

  • Network Service Controller provides the VIM.

  • The CPE device provides the NFV infrastructure.

• Cloud CPE centralized deployment Model (centralized deployment)

  In a centralized deployment, customers access network services in a service provider’s cloud. Sites that access network services in this way are called cloud sites in these release notes.

  In this deployment, CSO uses the following components for the NFV environment:

  • Network Service Orchestrator provides ETSI-compliant management of the life cycle of network service instances.

  • Contrail Cloud Platform provides the underlying software-defined networking (SDN), NFV infrastructure (NFVI), and the virtualized infrastructure manager (VIM).

CSO can be deployed in three deployment types—small, medium, or large. Table 1 shows the number of sites and VNFs supported for each environment.