| Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE |
| Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 |
| Moderator: | NETCAD::COLELLA DT |
| Created: | Wed Nov 13 1991 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 4455 |
| Total number of notes: | 16761 |
I would like to re-configure a large facility with the following
configuration. Is it legal? Thanks, Mike
alpha PC --------------
| |
--------- ----------
| | |-----------------| |DEC |
| dempr |=====|Twisted pair MAU |==========|repeater| DEC HUB 900
| | |-----------------| |900 TM |
--------- | |
| |
alpha pc ======| |
| || ----------
--------- || |
| | |-----------------| || ---------------
| dempr |=====|Twisted pair MAU |======
| | |-----------------|
---------
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 2188.1 | Works but is it legal? | NAC::LICAUSE | Wed Apr 12 1995 20:23 | 17 | |
Mike,
We have at least one such setup in LKG like this. We recently found a
problem, however, in that it was sensitive to specific files. We found
that the UTP cable between the top most repeater and its' neighbor
bridge was not up to spec.
It is also quite possible to force end systems to use three repeaters
in such a configuration. I'd like to see an answer to this as well
since the old rules said....."no more than two repeaters", but we've
recently heard that this is now three repeaters with the new devices.
The problem is that if it is now three repeaters, is this still valid
if old and new technology (i.e. dempr >> 900 series) is used?
al
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| 2188.2 | Can still add one more to your config. | CGOS01::DMARLOWE | Wow! Reality, what a concept! | Mon May 01 1995 18:22 | 6 |
As discussed here and an old ETHERNET notes conference, the old 2
repeater rule is not being used any more. The "new" rules are no more
that 4 repeaters between any 2 stations. This is not really different
than the old 2 repeater rule but we now count by ones instead of halfs.
dave
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