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Virtual networks are used to replace VLAN-based isolation and provide multi-tenancy in a virtualized data center.Each tenant or an application can have one or more virtual networks.Each virtual network is isolated from all the other virtual networks unless explicitly allowed by security policy.
The Network Function Virtualization (NFV) use case involves orchestration and management of networking functions such as a Firewalls, Intrusion Detection or Preventions Systems (IDS / IPS), Deep Packet Inspection (DPI), caching, Wide Area Network (WAN) optimization, etc.
The Open Contrail v Router is a forwarding plane (of a distributed router) that runs in the hypervisor of a virtualized server.
It extends the network from the physical routers and switches in a data center into a virtual overlay network hosted in the virtualized servers (the concept of an overlay network is explained in more detail in section 1.4 below).
An ideal underlay network provides uniform low-latency, non-blocking, high-bandwidth connectivity from any point in the network to any other point in the network.
The v Routers running in the hypervisors of the virtualized servers create a virtual overlay network on top of the physical underlay network using a mesh of dynamic “tunnels” amongst themselves.
This module was created by reversing a public malware sample.