Layer 2 Tunneling Protocol dictionary definition | Layer 2
L2TPv3 (Layer Two Tunneling Protocol Version 3) is a point-to-point layer two over IP tunnel. This means you can tunnel L2 protocols like Ethernet, Frame-relay, ATM, HDLC, PPP, etc. over an IP network. This can be pretty useful…For example, let’s say you have two remote sites and an application that requires that hosts are on the same subnet. Introduction The Layer Two Tunneling Protocol (L2TP) provides a dynamic mechanism for tunneling Layer 2 (L2) "circuits" across a packet-oriented data network (e.g., over IP). L2TP, as originally defined in RFC 2661, is a standard method for tunneling Point-to-Point Protocol (PPP) sessions. L2TP has since been adopted for tunneling a number of This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers. The Layer 2 Tunneling Protocol (L2TP) is a standard protocol for tunneling L2 traffic over an IP network. Its ability to carry almost any L2 data format over IP or other L3 networks makes it
Jul 15, 2020
Layer 2 Tunneling Protocol (L2TP) is a computer networking protocol used by Internet service providers (ISPs) to enable virtual private network (VPN) operations. L2TP is similar to the Data Link Layer Protocol in the OSI reference model, but it is actually a session layer protocol. A User Datagram Protocol (UDP) port is used for L2TP Layer Two Tunneling Protocol (L2TP) is an extension of the Point-to-Point Tunneling Protocol used by an Internet service provider to enable the operation of a virtual private network over the Internet. L2TP merges the best features of two other tunneling protocols: PPTP from Microsoft and L2F from Cisco Systems. L2TP stands for Layer 2 Tunneling Protocol, and it doesn’t provide any encryption by itself. L2TP VPN usually uses an authentication protocol, IPSec (Internet Protocol Security), for strong encryption and authentication, which gives it an ultimate edge on some other most used protocols like PPTP. The L2TP protocol uses UDP ports 1701. Layer 2 protocol tunneling allows Layer 2 protocol data units (PDUs) (CDP, STP, and VTP) to be tunneled through a network. This section uses the following terminology: • Edge switch—The switch connected to the customer switch and placed on the boundary of the service provider network (see Figure 21-1 ).
Apr 16, 2018
What can L2TP do for your network? | Network World The Layer 2 Tunneling Protocol (L2TP) is a standard protocol for tunneling L2 traffic over an IP network. Its ability to carry almost any L2 data format over IP or other L3 networks makes it Layer Two Tunneling Protocol | Article about Layer Two Looking for Layer Two Tunneling Protocol? Find out information about Layer Two Tunneling Protocol. An IETF standard protocol for creating Virtual Private Networks. L2TP is an open standard with mutlivendor interoperability and acceptance. Compare: PPTP Explanation of Layer Two Tunneling Protocol Layer 2 Tunneling Protocol : definition of Layer 2