Subject: DLSw Matrix

From: "Shannon Nix" <[email-masked]>
Date: Thu, 6 May 93 09:12:49 EST

Please add MIB to Netlink's interest column.

Could someone explain what is meant by enhanced SDLC support?  The issues I 
have heard to date include: 1) secondary as well as primary  2) group poll 
as either a primary or secondary station.  What, in the current DLSw 
specification, is precluding an implementor from supporting primary, 
secondary or negotiable link station roles as well group poll of any 
flavor?  These seem like implementation choices rather than DLSw 
issues.

The one possible implication, that I can see, would be in how the switches 
handle the link station role negotiation in the XID3 exchange.  But we have 
identified XID3 negotiation as a separate issue anyway.

Just curious, 
Shannon
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From: [email-masked]
Date: Thu, 06 May 93 08:58:21 PDT

Shannon-

>Please add MIB to Netlink's interest column.

    Done.

>flavor?  These seem like implementation choices rather than DLSw 

    I believe you are right ... SDLC (and other DLCs, for that matter)
    are merely implementation choices at the ends.  For SDLC on both
    ends, I don't believe there are any SSP extensions required. But
    we need to make sure so we can accommodate the SDLC-to-SDLC market
    so consider "SDLC support" a placeholder until we look at it in
    more detail.

    Since cisco was the original requester of this feature, I'll do the
    detailed examination of SSP using cisco's STUN (serial tunneling)
    as a requirement and report to the group at our meeting in June.
    If we determine that SSP can do SDLC-to-SDLC, then we should drop
    that feature from the matrix.

>identified XID3 negotiation as a separate issue anyway.

-----------
Wayne Clark
cisco Systems, Inc.
[email-masked]
415/688-4627