Subject: ATM-07 Available

From: "J. G. Dudley (444/4358)" <[email-masked]>
Date: Thu, 12 Sep 96 14:05:48 EDT

ATM-07 is now available on the AIW Document Repository in the
/aiw/appn/hpr directory as files atm-07.psbin, atm-07.zipbin, and
atm-07.exebin.  As always, change bars are used to mark changed text.
Changes from the previous version include the following:

1.  The document was updated based on comments I received from the
    ATM Forum.  See my previous append.  Sections affected include:
    2.6 (removal only), 2.7.1.1, 2.8, 2.8.2, 2.8.6, 2.11, and 2.14.
2.  For defined links over ATM SVCs, the defined link is identified
    at the called endstation by the TG number.  Link identification is
    required to correctly set parameters in prenegotiation XID.  Section
    2.7.1.1 describes the mechanism by which the called endstation
    learns the TG number prior to sending prenegotiation XID.
3.  Route Selection control vectors (RSCVs) are limited to 255 bytes.
    As a result, inclusion of ATM signaling information in RSCVs limits
    the number of hops that can be included in an RSCV.  To mitigate
    this problem, the formats for ATM signaling information have been
    changed to reduce their size within RSCVs (see Appendix D.)  New
    section 2.7.3.1 describes other mechanisms to mitigate the problem.
4.  Section 2.4.5 was updated at Ray Bird's request to include HPR
    network header settings for LDLC requests and responses.
5.  A small change was made to FSM_LDLC in section 2.4.13.  The entry
    under state 2 (Exchange XIDs) for input DEACT from CS is changed to
    1(Discard).  This is because in this state, a DEACT message cannot
    be sent to the partner; first, the SAPs from the XID exchange are
    not yet available, and second, it has not yet been determined if
    LDLC is supported by the partner node.
6.  The relationship between ATM CPCS-SDU size and BTU size was
    clarified.  See sections 2.7.1.1, 2.7.1.2, 2.11, and 2.11.2.

Regards,
Gary