Welcome to NetVirt

Introduction

NetVirt is a network virtualization solution that includes the following components as well as others: Open vSwitch based virtualization for software switches, Hardware VTEP for hardware switches, Service Function Chaining support within a virtualized environment, support for OVS and DPDK-accelerated OVS data paths, L3VPN (BGPVPN), EVPN, ELAN, distributed L2 and L3, NAT and Floating IPs, IPv6, Security Groups, MAC and IP learning.

Netvirt would provide the following modules --

• NeutronVPN:

             Creates and maintains the VPN information like VpnInstances, VpnInterfaces, VpnMaps, etc.

•  ElanManager:

             Creates the L2 forwarding rules based on the ELAN-Instance and ELAN-Interface details.

• VpnManager:

             Creates and maintains the Vpn Operational Information like VpnFootPrint, VpnInstanceOpData, VpnInterfaceOpData, etc.

• FibManager:

             Creates the L3 Forwarding Information Base (FIB) rules which is understandable by OFPlugin module and write all the populated data into FRM data store (Config-Inventory-DS)

• BgpManager:

             It is used for communicating between ODL Application to Quagga(Routing Engine) via Thrift Protocol. Also it provides the support for Quagga Advertised routes from DC-GW to ODL FIB Engine.

• DHCPService:

              It is used for providing DHCPv4 Server functionality as same as Openstack QDHCP Agent service.

• ACLService:

              It provides the ACL (Access Control List) in both INGRESS and EGRESS mode to VM booted neutron port.

• NATService:

           It provides the NATing service to openstack tenant VMs in the flavor of SNAT/Floating-IP(DNAT)  for Internet Connectivity purpose.