Technical Summary
This is an update of RFC 4938.
Working Group Summary
This is an RFC Editor submission.
Document Quality
Significant discussion occurred at the publication of the
earlier document. There is an implementation.
Personnel
Jari Arkko is the responsible Area Director, previously this
was shepherded by Mark Townsley.
RFC Editor Note
Response #2 from Section 3 of RFC 3932 applies:
The IESG thinks that this work is related to IETF work done in
PPPEXT WG, but this does not prevent publishing.
We understand that the proposed RFC is an update to RFC 4938;
as such, it should be possible to be published. The update does
not appear to change the reasons for the original note in RFC 4938,
so the IESG note should stay as is.
In addition, the following changes are necessary to ensure that the
IANA instructions are clear:
Change in Section 7:
OLD:
IANA has assigned the following PPPoE TLV Values as noted in [3]:
NEW:
IANA has assigned the following PPPoE TLV Values for which this RFC
should from now on serve as the reference:
Change in Section 7:
OLD:
IANA has assigned the following PPPoE Code fields as noted in [3]:
NEW:
IANA has assigned the following PPPoE Code fields for which this RFC
should from now on serve as the reference:
In addition, reviewers from the IESG suggested the following optional
changes in the RFC text. Please consider these suggestions together
with the authors as you edit the final RFC.
Add to the end of Section 3.1.1:
NEW:
These fields are transmitted in network byte order. The same byte
order is used throughout the document in other structures as well.
Section 3.2.1, 1st Discovery PADR packet diagram: s/Metric TLV/TLV/
Section 3.2.1, 2nd Discovery PADR packet diagram: the LENGTH should,
I think, be 0x0E
Section 3.2.2, 2nd Discovery PADS packet diagram: the LENGTH should
be 0x14
Section 3.2.4, 2nd para: s/Credit Tag TLV/Credit TLV/
IESG Note
Please use the RFC 4938 note intact even in the new RFC:
The PPP Extensions Working Group (PPPEXT) has reservations about the
desirability of the feature described in this document. In
particular, it solves a general problem at an inappropriate layer and
it may have unpredictable interactions with higher and lower level
protocols. The techniques described in this document are intended
for use with a particular deployment technique that uses a PPP
termination separated from a radio termination by an Ethernet, and
that has radio-side flow control for a slower PPP-only link to remote
nodes. Implementors are better advised to avoid split termination
with inter-media protocol translation, and use standard Internet
Protocol routing instead.