Virtual Private Wire Service
   HOME

TheInfoList



Click Here for Items Related To - Virtual Private Wire Service
OR:
Virtual Private Wire Service on:   [Wikipedia]   [Google]   [Amazon]

Virtual leased lines (VLL), also referred to as virtual private wire service (VPWS) or EoMPLS (Ethernet over MPLS), is a way to provide
Ethernet Ethernet ( ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 198 ...
-based point to point communication over
Multiprotocol Label Switching Multiprotocol Label Switching (MPLS) is a routing technique in telecommunications networks that directs data from one node to the next based on labels rather than network addresses. Whereas network addresses identify endpoints, the labels iden ...
(MPLS) or
Internet Protocol The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet. IP ...
networks. VLL uses the
pseudo-wire In computer networking and telecommunications, a pseudowire (or pseudo-wire) is an emulation of a Point-to-point (telecommunications), point-to-point connection over a packet-switched network (PSN). The pseudowire emulates the operation of a "tr ...
encapsulation for transporting Ethernet traffic over an MPLS tunnel across an MPLS backbone. VLL also describes a point to point bonded connection using the broadband bonding technology.


Types

There are 5 types of VLLs: * Epipes: Emulates a point-to-point Ethernet service. VLAN-tagged Ethernet frames are supported. Interworking with other Layer 2 technologies is also supported. * Apipes: Emulates a point-to-point ATM (
Asynchronous Transfer Mode Asynchronous Transfer Mode (ATM) is a telecommunications standard defined by the American National Standards Institute and International Telecommunication Union Telecommunication Standardization Sector (ITU-T, formerly CCITT) for digital trans ...
) service. Several subtypes are provided to support different ATM service types. * Fpipes: Emulates point-to-point
Frame Relay Frame Relay (FR) is a standardized wide area network (WAN) technology that specifies the Physical layer, physical and data link layers of digital telecommunications channels using a packet switching methodology. Frame Relay was originally devel ...
circuit. Some features for interworking with ATM are also supported. * Ipipes: Provides IP interworking capabilities between different Layer 2 technologies. * Cpipes: Emulates a point-to-point time-division multiplexing (TDM) circuit.


See also

*
Virtual Extensible LAN Virtual eXtensible LAN (VXLAN) is a network virtualization technology that uses a VLAN-like encapsulation technique to encapsulate OSI layer 2 Ethernet frames within layer 4 UDP datagrams, using 4789 as the default IANA-assigned destination U ...
*
Virtual Private LAN Service Virtual Private LAN Service (VPLS) is a way to provide Ethernet-based multipoint to multipoint communication over IP or MPLS networks. It allows geographically dispersed sites to share an Ethernet broadcast domain by connecting sites through p ...


References


External links


Layer 2 Virtual Private Networks (l2vpn) working group homepage

Pseudo Wire Emulation Edge to Edge (pwe3) working group homepage
MPLS networking Network protocols {{internet-stub