History. Published in 2000 as proposed standard RFC 2661, L2TP has its origins primarily in two older tunneling protocols for point-to-point communication: Cisco's Layer 2 Forwarding Protocol (L2F) and Microsoft's Point-to-Point Tunneling Protocol (PPTP).

Ang L2TP ay nakatayo para sa Layer 2 Tunneling Protocol, at ito – tulad ng ipinahihiwatig ng pangalan – isang tunneling protocol na idinisenyo upang suportahan ang mga koneksyon sa VPN. Nakatutuwang sapat, ang L2TP ay madalas na ginagamit ng mga ISP upang pahintulutan ang mga operasyon sa VPN. Ang L2TP ay unang nai-publish noong 1999. L2TP - Layer-2 Tunneling Protocol related. The list of acronyms and abbreviations related to L2TP - Layer-2 Tunneling Protocol Layer 2 Tunneling Protocol | Article about Layer 2

Layer-Two Tunneling Protocol Extensions for PPP Link Control Protocol Negotiation. 2003-01 10 pages: Proposed Standard RFC Thomas Narten : RFC 3438 (was draft-ietf-l2tpext-rfc2661-iana) Layer Two Tunneling Protocol (L2TP) Internet Assigned Numbers Authority (IANA) Considerations Update. 2002 …

Jul 02, 2008 · Normally, Cisco switches intercept and process a number of layer two protocols, including CDP, STP, VTP, and others. This can present problems when attempting to make a switch appear completely transparent, as is a common goal of service providers. Full transparency can be achieved with layer 2 protocol tunneling (not to be confused with L2TP). Layer Two Forwarding (L2F) is a Cisco tunneling protocol that uses virtual dial-up networks for secure data packet transport. L2F functionality is similar to the Point-to-Point Tunneling Protocol (PPTP), which was developed by the Microsoft-led PPTP Forum. L2F is part of the Layer 2 Tunneling Protocol (L2TP) standard (RFC 2661). Layer Two Tunneling Protocol (L2TP) Differentiated Services Extension. Category: Standards Track. Defines L2TP AVPs 47 (CCDS AVP) and 48 (SDS AVP). Layer Two Tunnelling Protocol (L2TP) Over ATM Adaptation Layer 5 (AAL5). Category: Standards Track. Layer Two Tunneling Protocol "L2TP" Management Information Base. You can access a private network through the Internet by using a virtual private network (VPN) connection with the Layer Two Tunneling Protocol (L2TP). L2TP is an industry-standard Internet tunneling protocol.

Layer 2 Tunneling Protocol (L2TP) - lynda.com

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