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Conference 7.286::fddi

Title:FDDI - The Next Generation
Moderator:NETCAD::STEFANI
Created:Thu Apr 27 1989
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2259
Total number of notes:8590

1273.0. "Why SAS looks WRAPED state" by TKTVFS::NAGAI_K (�䥯��ȡ����ˣ�ɼ) Fri Mar 11 1994 07:55

When my customer was checking FDDI network topology,with "CABLE TRON's MMAC" and
"TEKELEC's Chame LAN".

	SAS system's state is looked  WRAPED.

	ALL DEFZAs are same state. But DEFTAs are not.
	
	All systems work fine. No error .

	Why SAS state is WRAPED apeared.

			DEC con. 500
		       +--------------------+      | |
            | |        +                    +      | |
            | +--------+                    +------+ |
            +----------+                    +--------+
                       +                    +
                       +                    +
		       +---+---+---+---+----+
                           |   |   |   |
                           |   |   |   |
                           |   |   |   |
               DEFTA   ----+   |   |   +---- DEFZA
              (NOT WRAPED)     |   |       (WRAPED)
                               |   |
                               |   |    
               DEFTA   --------+   +-------- DEFZA
              (NOT WRAPED)                 (WRAPED)
T.RTitleUserPersonal
Name		DateLines
1273.1KONING::KONINGPaul Koning, B-16504Fri Mar 11 1994 14:187
A SAS, if inserted, is always by definition wrapped.  ("Wrapped" means that
the data comes out the same port on which it came in.)  That's what the ANSI
SMT standard calls for.

What does the DEFTA report?  If it doesn't report wrap, that may be a bug.

	paul