The Nuage Networks NSG-E is a series of hardware-based Customer Premises Equipment (CPE) designed for enterprise branches as part of the Nuage SD-WAN solution. A fundamental feature of these gateways is the ability to terminate and actively use multiple WAN connections simultaneously. This includes various link types such as MPLS, broadband internet, and LTE. This capability allows for link redundancy, traffic load sharing, and application-aware routing across the different paths, which is a core tenet of SD-WAN technology.

A. The NSG-E is a physical, hardware appliance. The virtual appliance counterpart in the Nuage portfolio is the NSG-V.

B. Different NSG-E models offer varying port densities. For example, the NSG-E300 model is equipped with eight dedicated LAN ports.

D. The NSG-E is designed to be centrally managed by the Nuage Networks Virtualized Services Platform (VSP) and cannot operate in a standalone model.

1. Nokia, "Nuage Networks from Nokia 7850 NSG-E Series Network Services Gateway Data Sheet", Document ID: 3HE 12170 AAAA TQZZA, Edition 01.

Page 1: States, "The 7850 NSG-E Series are purpose-built customer premises equipment (CPE) platforms..." This refutes option A.

Page 1: Mentions, "The 7850 NSG-E is managed by the Nuage Networks Virtualized Services Platform (VSP)." This refutes option D.

Page 2, Table 1: Under "Features and benefits," it lists "Multiple WAN link support for link redundancy and load sharing." This confirms option C.

Page 3, Table 2: Under "Technical specifications" for the NSG-E300, it lists "8 x 10/100/1000BASE-T LAN" ports. This refutes option B.

2. Nokia, "Nuage Networks Virtualized Network Services (VNS) Fundamentals Student Guide", Course Number: TTP34005-V-18.1.

Module 2: VNS Solution Components, Section: Network Service Gateway (NSG): This section describes the NSG-E as the physical CPE for branch locations and the NSG-V as its virtual equivalent. It also details the NSG's role in connecting to the central VSP controllers (VSC/VSD) and its function in terminating multiple WAN uplinks for SD-WAN services.