Virtual Private LAN Service (VPLS) is a way to provide Ethernet based multipoint to multipoint communication over IP/MPLS networks. It allows geographically dispersed sites to share an Ethernet broadcast domain by connecting sites through pseudo-wires. The technologies that can be used as pseudo-wire can be Ethernet over MPLS, L2TPv3 or even GRE. There are two IETF standards track RFCs (RFC 4761 and RFC 4762) describing VPLS establishment.
VPLS is a virtual private network (VPN) technology. In contrast to L2TPv3, which allows only point-to-point layer 2 tunnels, VPLS allows any-to-any (multipoint) connectivity.
In a VPLS, the local area network (LAN) at each site is extended to the edge of the provider network. The provider network then emulates a switch or bridge to connect all of the customer LANs to create a single bridged LAN.
VPLS is designed for applications that require multipoint or broadcast access
Read more about Virtual Private LAN Service: Mesh Establishment, Label Stack, Ethernet Emulation, Scalability
Famous quotes containing the words virtual, private and/or service:
“Tragedy dramatizes human life as potentiality and fulfillment. Its virtual future, or Destiny, is therefore quite different from that created in comedy. Comic Destiny is Fortune—what the world will bring, and the man will take or miss, encounter or escape; tragic Destiny is what the man brings, and the world will demand of him. That is his Fate.”
—Susanne K. Langer (1895–1985)
“The world still wants its poet-priest, a reconciler, who shall not trifle with Shakspeare the player, nor shall grope in graves with Swedenborg the mourner; but who shall see, speak, and act, with equal inspiration. For knowledge will brighten the sunshine; right is more beautiful than private affection; and love is compatible with universal wisdom.”
—Ralph Waldo Emerson (1803–1882)
“You had to face your ends when young
‘Twas wine or women, or some curse
But never made a poorer song
That you might have a heavier purse,
Nor gave loud service to a cause
That you might have a troop of friends.”
—William Butler Yeats (1865–1939)