| 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 |
Hi all, I'm a bit confused about why the new bridge 6xx series *requires* MCC elm. Simplistic view; I put the 6xx into a ring and use ELMS to talk through a bridge 500, asking for a ring map, or station info (SIF) or.... The bridge 500 takes the ELMS request and uses SMT to talk to the other stations on the ring. The bridge 6xx uses (I assume) SMT 6.2, same as my 500, so I'd expect them to talk happily on the ring to each other, so why can't ELMS get this info back and use it ? My first guess is that fuctions like elms map use the SMT extended service frames and that the 6xx has a 'new' set of parameters with which to confuse ELMS (am I close?), but there must be some functionallity that is 'basic' SMT and which ELMS could use on the 6xx. This would almost be treating the 6xx like any other 3rd party product, and we can get minimal information with them in the ring (eg a ring map). Any details on what does and what doesn't work (and why) appreciated (or someone want to give me a 6xx I can try it on ;-) Steve
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 292.1 | 6xx's have 3 or 4 ports to manage | BAGELS::LEVY | Mon Jul 01 1991 18:14 | 3 | |
DECelms doesn't have the syntax (or data structures) to support
multiport filtering. It was decided not to add them, because DECmcc is
the strategic network management platform.
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| 292.2 | No extensions to SMT | QUIVER::CIARFELLA | When in doubt, mumble. | Tue Jul 02 1991 10:22 | 18 |
The DECelms ring map utility does not use SMT extended service frames;
it uses the standard Station Information (SIF) Configuration and
Operation frames. This is an important point: the ring mapping
function does not make any extensions to the SMT protocols. It uses only
what's available in the SMT draft standard, version 6.2.
So, you can still use DECelms to build ring maps and gather SMT related
information with the DECbridge 600 series. But (re. -1) Jon is right.
The reason DECelms is not fully compatible with the DECbridge 600 series
is due to the new multiport filtering extensions. DECmcc ELM fully
supports the multiport extensions.
DECelms can still be used to manage lines 1 and 2, but I'm
not sure what would happen if you try to manage lines 3 and 4, or if
you tried to manage the A and B PHY ports.
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| 292.3 | Support of DECbridge 52X by DECelms | BEAGLE::ERIK | Fri Aug 30 1991 10:27 | 4 | |
Does DECELMS support DECbridge 52X ? (DECbridge 500 with Dual
Attachment Station - DAS) If not what will not work - management
of FDDI port B? Would it be possible to modify DECelms for the
customers who don't have or don't want DECMCC?
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