| 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 |
The NaC Buyer's Guide Supplement (1992 January-June) states on page 2-95 "A VAX 6000 or VAX 9000 system can support two FDDIcontroller 400 devices in the same XMI backplane and up to three in a single system." -Does this mean each controller, assuming two in a single 6000, must be connected to a separate FDDI ring, or can each controller be connected to a different concentrator on the same ring for dual homing? More simply stated, is there any way to provide dual homing for a VAX 6000 system? -Also can anyone point me to the documentation that answers these questions? Thanks Allan Ake
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 611.1 | KONING::KONING | Paul Koning, A-13683 | Tue Jun 16 1992 17:44 | 14 | |
I wouldn't call it dual homing in the FDDI sense; that refers to a single station (a dual attached station) using both its A and its B port to connect to concentrators. If you connect two adapters to the same FDDI ring (same or different concentrators) those are simply two independent connections and they will both become active. As far as higher layer protocols are concerned, that situation is equivalent with having two Ethernet adapters connected to the same Ethernet. The same limitations apply (for example, you can't run DECnet Phase IV on both of them). paul | |||||