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| 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 |
3352.0. "duplicate address DC900MX???" by BERFS4::NORD () Tue Mar 12 1996 02:14
Good morning, good evening and something between,
imagin a backplane, a DC900MX and a DS900EF, port A (1) of the DC900MX
and B of the DS900EF are connected together in the backplane. Two
systems are connected to port 2 and 3 of the DC900MX. Customer has
had some problems with his systems, so he connected them to port 5 and
6 of the DC900MX.
On the console of the systems he saw "... duplicate address ..."
Hhhhhmmmm, what's going on, who/which/what is doing this duplicate
address test, and why is this address in use, even if the system is
connected to a different port of the DC900MX?
Is there someone out there, who can explain this problem?
Greetings from
Wolfgang Nord
MCS at Berlin at Germany
| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 3352.1 | May be a loop | GIDDAY::STANISLAUS | | Tue Mar 12 1996 08:20 | 10 |
|
May be the system has an FDDI and an Ethernet controller and is
running DEcnet Phase IV or Phase V in Phase IV addressing mode. In this
case if you connect the FDDI controller to the DC900MX and the Ethernet
controller either directly or indirectly (via a DECrepeater) to the
DS900EF, then you could see this symptom of duplicate address. The
system will see it's own AA-00-04-00-XX-YY a DEcnet address via the
DC900MX/DS900EF loop. The DS900EF will also see side-changes.
Alphonse
|
| 3352.2 | | NPSS::WADE | Network Systems Support | Fri Mar 15 1996 15:30 | 23 |
| Wolfgang,
What do you mean by,
"
On the console of the systems he saw "... duplicate address ..."
"?
If you are referring to an error log entry in the MAM -
"duplicate IP address seen in slot x"
This can be caused by a conflict between MAM and module IP addresses.
I spent a fex minutes in the lab on this. I forced a "duplicate IP
address seen in slot 7" MAM error log entry by giving my IP services
module (module in slot 7) the same address as assigned to the MAM OBM IP
address.
Something to check...
Bill
|