[rfc-dist] RFC 8469 on Recommendation to Use the Ethernet Control Word
rfc-editor@rfc-editor.org Wed, 14 November 2018 20:44 UTC
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Subject: [rfc-dist] RFC 8469 on Recommendation to Use the Ethernet Control Word
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A new Request for Comments is now available in online RFC libraries. RFC 8469 Title: Recommendation to Use the Ethernet Control Word Author: S. Bryant, A. Malis, I. Bagdonas Status: Standards Track Stream: IETF Date: November 2018 Mailbox: stewart.bryant@gmail.com, agmalis@gmail.com, ibagdona.ietf@gmail.com Pages: 9 Characters: 19138 Updates: RFC 4448 I-D Tag: draft-ietf-pals-ethernet-cw-07.txt URL: https://www.rfc-editor.org/info/rfc8469 DOI: 10.17487/RFC8469 The pseudowire (PW) encapsulation of Ethernet, as defined in RFC 4448, specifies that the use of the control word (CW) is optional. In the absence of the CW, an Ethernet PW packet can be misidentified as an IP packet by a label switching router (LSR). This may lead to the selection of the wrong equal-cost multipath (ECMP) path for the packet, leading in turn to the misordering of packets. This problem has become more serious due to the deployment of equipment with Ethernet Media Access Control (MAC) addresses that start with 0x4 or 0x6. The use of the Ethernet PW CW addresses this problem. This document RECOMMENDS the use of the Ethernet PW CW in all but exceptional circumstances. This document updates RFC 4448. This document is a product of the Pseudowire And LDP-enabled Services Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC _______________________________________________ rfc-dist mailing list rfc-dist@rfc-editor.org https://www.rfc-editor.org/mailman/listinfo/rfc-dist http://www.rfc-editor.org