| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 992.1 | | NPSS::WADE | Network Systems Support | Mon May 16 1994 14:55 | 21 |
| >
> We are putting together a small FDDI ring consisting of 2 DECbridge
> 900 MX's and a Sun server. The 2 bridges will supply 6 Ethernets to
> each of 2 floors with the DB 900's linked via A and B ports. Until
> we get a concentrator I assume I need to convert one of the ports on one
> of the DB 900's to a M port. How and when can I do this? I assume
> that I will need HUBWATCH V3 to do this and the OpenVMS version
> is real close. Console port do anything for me?
>
Only concentrators provide M ports.
You won't have the dual ring configuration but (unless there
is a restriction on the DAS implementation on the DB900) you
can do this -
DB900(A) ---- (B)DB900(A) ---- (S)Sun
Bill
|
| 992.2 | | QUIVER::SLAWRENCE | | Mon May 16 1994 15:17 | 5 |
| The default is for both bridges to be AB on the front - just hook them
to each other and you have a ring. You don't need to change the port
types.
Is the problem the Sun Server?
|
| 992.3 | Needed to know before going on site. | CGOS01::DMARLOWE | Have you been HUBbed lately? | Mon May 16 1994 15:30 | 8 |
| I do not need a dual ring. What I need is the following but thought
the Sun (SAS) had to go to an M port. But if below works, then
I can last until I get a DC 900MX in or until they get more file
servers in and want to hook them to FDDI.
DB900(A) ---- (B)DB900(A) ---- (S)Sun
dave
|
| 992.4 | | NPSS::WADE | Network Systems Support | Mon May 16 1994 16:14 | 9 |
| re .2
the problem is if you connect A--B
| |
B--A
you have no place to connect the S-port on the Sun.
Bill
|
| 992.5 | | LEVERS::ANIL | | Mon May 16 1994 18:46 | 3 |
| The config in .3 works fine.. it will look like a wrapped ring.
Anil
|
| 992.6 | No need of DAS adapter ?? | LFOIS1::MOUSSU | so unusuaL terM | Tue May 31 1994 05:37 | 9 |
| As far as I had understood the FDDI config rules, I would have bet
that a DAS adapter was required on the SUN system side to allow the
ring to wrap.
DB900(A) ---- (B)DB900(A) ---- (A)Sun
Have I missed something ?
|
| 992.7 | It will work, but has no fault control | NACAD2::BATTERSBY | | Tue May 31 1994 09:05 | 7 |
| Your configuration will work, but of course, the Sun will only
be connected to the primary ring. If that SAS connection breaks
or otherwise disrupts the (primary) ring, there would be no fault
control. Placing a concentrator (if one was available), between
the DB900(A) and the (A)Sun would provide this fault control.
Bob
|
| 992.8 | Works just great. | CGOS01::DMARLOWE | Have you been HUBbed lately? | Tue May 31 1994 10:37 | 15 |
|
We have been running like the following for the last 2 weeks:
(A)DB900(B) ---- (A)DB900(B)
The customer JUST managed to get the FDDI card in the SUN. We just
took a MIC-MIC patch cord and plugged it straight into the B port
and everything came up just fine. No configuring the DB 900. We
will run this way until we get the DECconcentrator 900 that is on
order.
(A)DB900(B) ---- (A)DB900(B) ---- (S)SUN
dave
|