Subject: On draft-ietf-pppext-posvcholo-04.txt

From: "R. Muralidharan" <[email-masked]>
Date: Wed, 25 Jul 2001 17:54:13 +0530

Hi All,

    the Fourth version of the draft states that "lower levels of VC are
defined in the telecommunications standards for use if needed". In view of
this, it is suggested that the following be considered:
Section 3 be modified to include the following info for lower order VC.
For higher order VC, SONET POH bytes C2 and H4 are used and for Low order
VC, the POH byte C2 and VT overhead byte V5 are used.

Further, when an STS-1 carries VT traffic containing POS which is virtually
concatenated,  is there special symbol for the C2 byte defined? This
condition occurs when one tries to map 10Mbps Ethernet traffic onto 7 VT1.5s
in low order VC mode.

Thanks in advance
regards,
Muralidharan

----- Original Message -----
From: <[email-masked]>
To: <IETF-Announce:>
Cc: <[email-masked]>
Sent: Tuesday, July 24, 2001 4:02 PM
Subject: I-D ACTION:draft-ietf-pppext-posvcholo-04.txt

> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
> This draft is a work item of the Point-to-Point Protocol Extensions
Working Group of the IETF.
>
> Title : Extending PPP over SONET/SDH, with virtual
>                           concatenation, high order and low order payloads
> Author(s) : N. Jones, C. Murton
> Filename : draft-ietf-pppext-posvcholo-04.txt
> Pages : 8
> Date : 23-Jul-01
>
> The RFC 1661 Point-to-Point Protocol (PPP) [1] provides a standard
> method for transporting multi-protocol datagrams over point-to-point
> links. The RFC 1662 PPP in HDLC-like Framing [2] and RFC 2615 PPP
> over SONET/SDH (POS) [3] documents describe the use of PPP over
> Synchronous Optical Network (SONET) and Synchronous Digital
> Hierarchy (SDH) circuits.

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