Thanks for all those who joined the Nuage Networks webinar as it highlighted networking constraints in the branch environment. Our attendees were able to see first-hand how software-defined networking (SDN) and Nuage Networks Virtualized Network Services (VNS) work together to provide seamless service for branch environments.
After the demo, our host from Nuage Networks, Rotem Salomonovitch, was kind enough to take some questions from our participants. Below, you can read the Q&A and learn more about how to use and deploy Nuage Networks VNS. You’ll also find links to the full Nuage Networks webinar, teaser videos, and other resources here.
How is this product related to CloudBand?
Nuage Networks: Alcatel-Lucent CloudBand enables service providers to accelerate adoption of network functions virtualization (NFV), providing a fully integrated solution that orchestrates infrastructure, applications, and network in a single, virtualized NFV platform. Its main focus is in the orchestration of compute and storage resources for multi-tenanted distributed datacenter environments. To connect computing resources, CloudBand leverages the Nuage Networks Virtualized Services Platform (VSP) to automate the deployment of networking services within and across heterogeneous datacenter environments.
Prior to the introduction of Nuage Networks Virtualized Network Services (VNS), VSP was focused on the automation of datacenter environments. Nuage VNS, leverages the same Nuage Networks VSP components to extend the same automation and policy-based service framework beyond datacenter environments to Enterprise locations.
As such, the Nuage Networks VNS solution may be deployed as a networking services platform providing secure and automated Enterprise WAN services (eg. VPNs) or in support of CloudBand, providing the required network services for distributed NFV implementations.
Is it possible to implement other manufacturers virtual machines, like Palo Alto Firewall?
To support the integration or interoperability with network services functions like the above, the Nuage Networks VNS solution has been architected to either natively support network functions as part of its embedded functionality or alternatively direct traffic to centralized locations where third party network service functions may reside. VNS provides the flexibility for users to decide which functions are hosted where (embedded or more centrally located) to suit the deployments business requirements.
The Nuage Networks VNS partner ecosystem is developing and will encompass new solution partners as market demands arise.
Does this solution use OpenFlow 1.3?
Nuage Networks: OpenFlow is used within the VNS solution for programming the network forwarding and configuration information between the SDN control plane (Virtualized Services Controller) and the networking end point (Network Services Gateway). Nuage Networks VNS leverages many of the benefits of OpenFlow where these are available and extends its capability in support of advanced functions as required.
In this model will the branch still need a L2 CPE? What if the branch is connected to multiple ISPs for redundancy?
Nuage Networks: Nuage Networks VNS allows flexible deployment models depending on the location and type of network services that are required. For example, if an Enterprise would like to centralize its routing functions while limiting the functions required at each branch location, an NSG performing routing functions may be deployed centrally while deploying an L2 CPE at branch locations. Alternatively, if branch locations require more advanced functions such as L2 and L3 VPNs, Internet access and support multiple SP connections with intelligent traffic management, then NSG performing such functions may deploy directly at the branch site, eliminating the requirements for an L2 CPE.
Do you use OpenStack?
Nuage Networks: The Nuage Networks VSP (and so VNS) supports OpenStack, Cloudstack, and VMware-based compute management solutions. For OpenStack, the solution supports Neutron and is certified with both Red Hat and Oracle OpenStack distributions.
How does this proposal differ from the proposed Group Based Policy in OpenDaylight?
ODL Group Based Policy is work on establishing an application-centric model to abstract the application from the complexity of the network configuration. This is a fundamental principle for SDN, and Nuage Networks has established itself as a strong supporter of the SDN principles to abstract the application from the complexity of the network via repeatable templates and to automate the deployment of those templates via centralized policy.
The Nuage Networks VNS is a solution of centralized policy (Virtualized Services Directory), comprehensive control plane (Virtualized Services Controller) and intelligent network endpoint (Network Services Gateway) that provide a network virtualization solution that delivers end to end network services regardless of branch location (in a building, in a public cloud). Although its policy framework shares many of the principles, which ODL Group Based Policy (GBP) is envisioning to address, it goes well beyond ODL’s GBP definitions to provide a more complex, multi-layer policy framework with Role-Based Access Control (RBAC) permission models in support of not only datacenter but also branch networking services.
Can VNS work without implementing VSP in the data center?
Nuage Networks: Absolutely, the Nuage Networks VNS solution may be deployed specifically for WAN services as a standalone solution.
For customers that have implemented VSP in their data center, the same centralized policy (Virtualized Services Directory) and control plane (Virtualized Services Controller) may be leveraged to offer seamless data center to branch policy-based solution.
For customers that have existing data center deployments and would like to leverage Nuage Networks for WAN services only, VNS offers the required interoperability to work with existing deployments.