RFC Frame Relay over L2TPv3 July present in the ICRQ in order to identify the PVC (together with the identity of the LCCE itself, as defined in. Layer 2 Tunnelling Protocol Version 3 is an IETF standard related to L2TP that can be used as IETF L2TPEXT working group · RFC – Layer Two Tunneling Protocol – Version 3 (L2TPv3) · RFC – Layer Two Tunneling Protocol “L2TP. Abstract This document describes the transport of Ethernet frames over the Layer 2 Tunneling Protocol, Version 3 (L2TPv3). This includes the transport of.

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Network Working Group C. Pignataro Request for Comments: Please refer to the current edition of the “Internet Official Protocol Standards” STD 1 for the standardization state and status of this protocol.

Distribution of this memo is unlimited. Table of Contents 1. The reader is expected to be very familiar with the terminology and protocol constructs defined in [ RFC ].

RFC – Frame Relay over Layer 2 Tunneling Protocol Version 3 (L2TPv3)

Specification of Requirements In this document, several words are used to signify the requirements of the specification. These words are often capitalized.

For purposes of this discussion, the action of locally associating an interface running HDLC with a PW by local configuration or otherwise is referred to as “provisioning” the HDLC interface. Waiting until the interface transitions to ACTIVE may be preferred, as it delays allocation of resources until absolutely necessary. The exact method of how this value is rfv, retrieved, discovered, or otherwise determined at each L2ttpv3 is outside the scope of this document.


If so, the period and maximum number of retries MUST be configurable. The ICCN is the final stage in the session establishment, confirming the receipt of the ICRP with acceptable parameters to allow bidirectional traffic. Additional HDLC result codes are defined as follows: All sessions established by a given control connection utilize the L2TP Hello facility defined in Section 4.

This gives all sessions basic dead peer and path detection between PEs. For reference, this AVP is shown below: Reserved bits MUST be set to 0 when sending, and ignored upon receipt.

A non-exhaustive list of examples and considerations of this transparent nature include: The sequencing mechanisms described in Section 4. The value of N depends on the following fields: The MTU and fragmentation implications resulting from this are discussed in Section 4.

Applicability Statement HDLC Pseudowires support a “port to port” or “interface to interface” l2t;v3 model operating in a point-to-point fashion.

RFC: L2TPv3 interface

The specific negotiations and signaling of the protocol being transported are performed between Remote Systems transparently, and the LCCE does not participate in them. Errors or corruption introduced in the HDLCPW payload during encapsulation or transit across the packet-switched network may not be detected.

This lack of integrity-check transparency may not be of concern if it is known that the inner payloads or upper protocols transported perform their own error and integrity checking. Sequencing may be enabled in the HDLCPW for some or all packets to detect lost, duplicate, or out-of-order packets on a per-session basis see Section 4. Beyond the considerations when carrying other data link types, there are no additional considerations specific to carrying HDLC.


The following is a summary: Maria Alice Dos Santos provided helpful review and comment.

RFC – Layer Two Tunneling Protocol – Version 3 (L2TPv3)

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