| 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 |
I have deleted the original Note and restated the question after
receiving MAIL suggesting that the way it was originally stated was
misleading:
Why do DEFCNs show Bridge Strip as their frame strip mode? I would
expect this to be Source Address Match since this is not a bridge.
Nor is it a station for that matter..just curious as to why.
BTW, this is displayed via both the OBM port and management access.
Phil
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1123.1 | Look at 929.1 | LEMAN::BRUNNER | FF Frame Finder | Wed Oct 27 1993 05:43 | 5 |
Hi Phil,
Luc Pariseau gave an answer in 929.1
Regards
| |||||
| 1123.2 | Who sends Voids when? | PFSVAX::MCELWEE | Opponent of Oppression | Wed Oct 27 1993 11:27 | 8 |
Thanks for the pointer. I understand the function of the FCI with
respect to Void Frames issued by the Ring Purger DEFCN. What I don't
understand is why a non-purger DEFCN still shows Bridge Strip when it
does not appear to be sending Void frames as viewed via an analyzer.
Perhaps I need to monitor for Voids while communicating via SMT to the
non-purger DEFCN?
Phil
| |||||
| 1123.3 | KONING::KONING | Paul Koning, B-16504 | Wed Oct 27 1993 13:25 | 11 | |
1. The ring purger sends two void frames at every token. (I.e., if you monitor just downstream from it, you'll see every token preceded by two void frames from the purger.) 2. Any station using Bridge stripping sends one void frame at the end of each transmission (before issuing the token). If it's not transmitting anything, you won't see any voids from such a station. Since it has to send, at a minimum, an SMT NIF frame every few seconds, you will see a void frame at least that often. paul | |||||
| 1123.4 | Thank you. | PFSVAX::MCELWEE | Opponent of Oppression | Thu Oct 28 1993 01:13 | 1 |