NaaS(Network-as-a-Service) is a cloud model that enables users to easily operate the
network and achieve the outcomes they expect
from it without owning, building, or maintaining their own infrastructure.
NaaS allows customers to operate their own networks without maintaining their own networking
Like other cloud services, NaaS vendors run networking functions using software, essentially
allowing companies to
set up their own networks entirely without hardware. All they need is Internet connectivity.
NaaS can replace virtual private networks (VPNs), multiprotocol label switching (MPLS)
connections, or other legacy
network configurations. It can also replace on-premise networking hardware such as firewall
load balancers. A newer model for routing traffic and applying security policies, NaaS has
had a major impact
on enterprise networking architecture.