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The IEEE 802.9
working group is disbanded which is a step beyond hibernation. This was done
because all the 802.9 standards have been withdrawn. Since there was a
previous unsuccessful standard developed to add isochronous service to an IEEE
802.3 base, I expect the bar for showing broad market potential/technical
feasibility/economic feasiblity will be higher for any future attempt to add
isochronous capability.
Regards,
Pat
Jose:
802.9 is a good
example for Bill's question. I was a member of the 802.9 WG when the
group completed the work on 802.9a (ISLAN16-T) and .9b which I forget the
formal name, but defined the Access Unit AU which was the I/F to other network
types. This WG by the way is also in hibernation. 802.9a defined
an interface between .9a TE's and servers to a .9b AU and we did take
exception to providing compliance with 802.1 in our .9b AU PAR for the
isochronous and multiservice modes of operation. The third mode was the
10BASE-T mode which of course complied with .1. The modes that
incorporated isochronous traffic claimed compatibility to ITU-T defined ISDN
transport and used the Q.93x family of signalling protocols.
As you state, the .9 group has been disbanded for many years and there has
been no effort to to revise these documents.
Regards,
Richard Brand
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