In computer networking, the point to point protocol over atm pppoa is a layer 2 datalink protocol typically used to connect domestic broadband modems to isps via phone lines. In computer networking, the pointtopoint protocol over atm pppoa is a layer 2 datalink protocol typically used to connect domestic broadband modems to isps via phone lines. Jan 18, 2017 point to point protocol ppp is a computer network protocol used to transfer a datagram between two directly connected point to point computers. This guide describes alliedware plus pointtopoint ppp and its configuration. Ppp the protocol defined in rfc 1661, the internet standard for transmitting network layer datagrams e. It appeared at the turn of the century, in the context of the boom of. Ppp atm stands for point to point protocol over asynchronous transfer mode. Oct 06, 2014 the point to point protocol over ethernet pppoe is a network protocol for encapsulating ppp frames inside ethernet frames. Two encapsulated variations of pointtopoint protocol, ppp over atm pppoa and ppp over ethernet ppoe are widely used by isps for establishing a dsl digital subscriber line connection with. Two derivatives of ppp, pointtopoint protocol over ethernet pppoe and pointtopoint protocol over atm pppoa, are used most commonly by internet service providers isps to establish a. The objective of this paper is to characterize and analyze the performance of tcpip when used over pointtopoint protocol ppp and asynchronous transfer mode atm on asymmetric links.
Three sets of protocols are defined to make ppp powetful. In the first case, the link can be used by the two devices at any time. Ppp was devised by ietf internet engineering task force to create a data link protocol for point to point lines that can solve all the problems present in slip. The basic purpose of ppp at this point is to transport layer3 packets across a data link layer point to point link. Pointtopoint protocol ppp provides multiprotocol lantowan connections handling tcpip, ipx, and appletalk simultaneously. Let us understand functions of all the atm protocol layers including sublayers if any. An ipv6atm driver that supports the full svc mode shall also support pvc mode of operation. Multiprotocol encapsulation this specification uses the principles, terminology, and frame structure described in multiprotocol encapsulation over atm adaptation layer 5. The pointtopoint protocol ppp is the existing method used when transferring transmission control protocolinternet protocol tcpip data over modem connections. The pointtopoint protocol over ethernet pppoe is a network protocol for encapsulating ppp frames inside ethernet frames. Pointtopoint protocol over ethernet over atm how is. The pointtopoint protocol ppp provides a standard method for transporting multiprotocol datagrams over pointtopoint links. Functions of atm layer are under the network management, signaling and oam protocol.
The purpose of this specification is not to document what is already standardized in, but to specify how the mechanisms described in are to be used to map. Pppoatm is defined as pointtopoint protocol over asynchronous transfer mode rarely. How is point to point protocol over asynchronous transfer mode abbreviated. A minimally conforming ipv6atm driver shall support the pvc mode of operation. Pppoatm is an acronym that can contain many meanings which are listed below. Information and translations of pointtopoint protocol over atm in the most comprehensive dictionary definitions resource on the web. Atm interfaces with the aal and the physical layer. The protocol reference model is divided into three layers. Point to point protocol is widely used for the heavier and faster connections necessary for. Ppp in a network, two devices can be connected by a dedicated link or a shared link. What does pointtopoint protocol over ethernet mean.
Pointtopointer definition of pointtopointer by the. By always using 53byte cells, atm simplifies the design of hardware, enabling it to quickly determine the destination address of. Atm layer provides the routing information to the data cells. Atm pppoa, or multiprotocol encapsulation over atm. Pppoatm stands for pointtopoint protocol over asynchronous transfer mode. The pointtopoint protocol over atm is a network protocol for encapsulating ppp frames in aal5. It provides a standard method for transporting multiprotocol datagrams over pointtopoint links. Pointtopoint protocolppp ccn ppt linkedin slideshare. Pointtopoint protocol over ethernet over atm how is pointtopoint protocol over ethernet over atm abbreviated. Aug 20, 2012 point to point protocol over atm pppoa, rfc 2364 is a protocol for encapsulating ppp frames for transmission over an atm network. Point to point protocol over atm pppoa, rfc 2364 is a protocol for encapsulating ppp frames for transmission over an atm network.
It is used to connect the home pc to the server of isp via a modem. Data link layer protocol for transport of atm cells over a wireless link ep19960307194 ep0768806b1 en 19951010. In computer networking, the pointtopoint protocol over atm pppoa is a layer 2 datalink protocol typically used to connect domestic broadband modems to. Pdf characterization of performance of tcpip over ppp. Rfc 2364 describes point to point protocol over atm pppoa as a method for transmitting ppp over atm adaptation layer 5, which is also a common alternative to pppoe used with dsl. We refer to this type of access as pointtopoint access. Point to point protocol over ethernet over atm listed as pppoeoa.
Definition of pointtopoint protocol over ethernet in the dictionary. It offers stan dard ppp features and sup ports the vcmux and llc based encapsulation. Ppp atm is defined as point to point protocol over asynchronous transfer mode frequently. Pointtopoint protocol over ethernet over atm listed as pppoeoa. An encapsulation component that is used to transmit datagrams over the specified physical layer. Hdlc encapsulation highlevel datalink control hdlc is a wan encapsulation protocol used on dedicated point to point serial lines. Rfc 2364 describes pointtopoint protocol over atm pppoa as a method for transmitting ppp over atm adaptation layer 5, which is also a common alternative to pppoe used with dsl. Aug 14, 2014 two derivatives of ppp, point to point protocol over ethernet pppoe and point to point protocol over atm pppoa, are used most commonly by internet service providers isps to establish a. Pppoatm is defined as point to point protocol over asynchronous transfer mode rarely.
Ppp uses several other protocols to establish link, authenticate users and to carry the network layer data. This is one of many advantages to using ppp, it is not proprietary. Ppp is more efficient than atm for the last mile or network. Pointtopoint protocol over ethernet pppoe management. Protocol layers atm layer atm adaptation layer physical layer atm layer physical layer atm layer atm. At any moment, a ppp packet can carry data from one of these protocols in its data field. Pointtopoint protocol over ethernet over atm how is point. In computer networking, pointtopoint protocol ppp is a data link layer layer 2 communications protocol between two routers directly without any host or any. It is very slightly more efficient than pppoe and, like pppoe, supports vcmux and llc encapsulation. Atm regardless of the wan encapsulation used, it must identical on both sides of a pointtopoint link.
A network protocol for encapsulating ppp frames in atm aal5. Hdlc high level data link control, l2tp layer 2 tunneling protocol, and pppoe point to point protocol over ethernet provide such protocols. A method for encapsulating multiprotocol datagrams. Pointtopoint protocol over atm pppoa, rfc 2364 is a protocol for encapsulating ppp frames for transmission over an atm network. Though hdlc is technically an iso standard protocol, ciscos. Pointtopoint protocol over atm article about pointto. It is pointtopoint protocol over ethernet over atm.
The cisco 857, cisco 876, cisco 877, and cisco 878 access routers support pointtopoint protocol over. Information and translations of pointtopoint protocol over ethernet in the most comprehensive dictionary definitions resource on the web. The use of atm to provide point to point pvc service, or flexible point to point and point to multipoint svc service, is covered by this document. Computers point to point protocol abbreviation for 1. The figure2 depicts atm protocol stack which consits of atm physical layer similar to osi layer1, atm layer and aal layer. This paper gives a selfcontained description of classical ip internet protocol and arp address resolution protocol over atm asynchronous transfer mode and describes a model facilitating. Atm protocol stackaal layer,atm layer,physical layer. Data link layer protocol for transport of atm cells over a wireless link ca 2184417 ca2184417c en 19951010. Pppoa a network protocol for encapsulating ppp frames in atm aal5. Point to point protocol synonyms, point to point protocol pronunciation, point to point protocol translation, english dictionary definition of point to point protocol. Ppp pointtopoint protocol, specified in rfc 1661, is a protocol used to establish a direct connection between two nodes via a wan or lan. Pppoatm stands for point to point protocol over asynchronous transfer mode. The ppp protocol consists of the following main components.
It has the basic function of encapsulating network layer layer 3 protocol information over pointtopoint links. Pointtopoint protocol over asynchronous transfer mode pppoa is specified by the internet engineering. Atm aal5 protocol is designed to provide virtual connections between end stations attached to the same network. Pppatm stands for pointtopoint protocol over asynchronous transfer mode. Hdlc high level data link control, l2tp layer 2 tunneling protocol, and pppoe pointtopoint protocol over ethernet provide such protocols.
Protocol layers atm layer atm adaptation layer physical. Atm wans it can be used as a wan to send cells over long distances, router serving as a endpoint between atm network and other networks, which has two stacks of protocol. It offers standard ppp features and supports the vcmux and llc based encapsulation. Pointtopoint protocol synonyms, pointtopoint protocol pronunciation, pointtopoint protocol translation, english dictionary definition of pointtopoint protocol. Asynchronous transfer mode atm in computer network. Atm regardless of the wan encapsulation used, it must identical on both sides of a point to point link. It is a byte oriented protocol that is widely used in broadband communications having heavy loads and high speeds. Ppp is configured to work at the data link open systems interconnection osi layer and helps data transmission by utilizing a multiprotocol setup via the physical, data link, and network layers of the. Asynchronous transfer mode atm is a network protocol designed to facilitate the simultaneous handling of various types of traffic streams voice, data, and video at very high speeds over the same physical connection. It is used mainly with docsis and dsl carriers, by encapsulating ppp frames in atm aal5.
This protocol is used for a very basic level of connectivity providing data linkage between the computers. Note that there is one lcp, two aps, and several ncps. The bri consists of two b channels, each at 64 kbits. Pppoatm pointtopoint protocol over asynchronous transfer mode. Pppatm pointtopoint protocol over asynchronous transfer. Pppoe is commonly used in subscriber dsl networks to provide pointtopoint connectivity to subscriber clients running the ppp protocol encapsulated in ethernet. Hdlc encapsulation highlevel datalink control hdlc is a wan encapsulation protocol used on dedicated pointtopoint serial lines. Two encapsulated variations of point to point protocol, ppp over atm pppoa and ppp over ethernet ppoe are widely used by isps for establishing a dsl digital subscriber line connection with. Pointtopoint protocol ppp is used to implement tcpip over pointtopoint connections. Configuring pointto point protocol over ethernet pppoe connections. How is pointtopoint protocol over asynchronous transfer mode abbreviated. Pointtopoint protocol ppp is a computer network protocol used to transfer a datagram between two directly connected pointtopoint computers. Multimedia virtual private networks and managed services. Pppoa offers standard ppp features such as authentication, encryption, and compression.
Pppatm is defined as pointtopoint protocol over asynchronous transfer mode frequently. Pppoatm pointtopoint protocol over asynchronous transfer. It offers standard ppp features such as authentication, encryption, and compression. The ohio state university raj jain 18 features one atm lan can be multiple virtual lans logical subnets interconnected via routers need drivers in hosts to support each lan only ieee 802. Ppp provides transport over atm, frame relay, isdn and optical links. Point to point protocol ppp is a layer 2 wide area network wan protocol used for basic data encapsulation and transmission across a network. Ppp uses its own framing method which allows encapsulation of any layer 3 protocol. Ppp is a layered protocol that has three components. Ppp can be used over twisted pair, fiberoptic lines, and satellite transmission. Pointtopointer definition of pointtopointer by the free.
Point to point protocol ppp although hdlc is a general protocol that can be used for both pointtopoint and multi point configurations, one of the most common protocols for pointtopoint access is the pointtopoint protocol ppp. Sep 07, 2016 ppp point to point protocol refers to a family of computer networking protocols that provide a standard way to transport multiprotocol data over point to point links. Definition of pointtopoint protocol over atm in the dictionary. Point to point protocol ppp is a communication protocol of the data link layer that is used to transmit multiprotocol data between two directly connected pointtopoint computers. Atm interfaces overview techlibrary juniper networks. Point to point protocol ppp although hdlc is a general protocol that can be used for both point to point and multi point configurations, one of the most common protocols for point to point access is the point to point protocol ppp. The basic purpose of ppp at this point is to transport layer3 packets across a data link layer pointtopoint link. The software including firmware addressed in this manual is provided to the u. Pointtopoint protocol wikipedia, a enciclopedia livre. Atm layer is common to all services which can have the packet transfer capabilities. Find out information about pointtopoint protocol over atm. Asynchronous transfer mode atm is a celloriented switching and multiplexing. An overview raj jain professor of computer and information science the ohio state university. The bluetooth specification reuses this protocol in the local area network lan access profile to route network data over an rfcomm port.