| 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 |
how to get default access as ether on b620s decbridge 620 - access decmcc 1.3 ultrix 4.3 No fddi -ring inplace, only loopbacks on fddi ports mcc> show bridge 08-00-2b-76-0d-e8 line * all char (fddi port addr) takes forever to give response back mcc> show bridge 08-00-2b-76-0d-e9 line * all char (ethernet port addr) comesback immediately on the SNIFFER mcc sendsout rbms request, and response comes back in both cases, no difference except the time. All bridges have fddi loopback connectors, and only ethernet side is being used. when I register the bridge in mcc with ethernet address , it comesback 1st time immediately, then it populates namespace with all 4 mac addresses, and uses the 1st one, which happens to be fddi port. Is there anyway to ask the bridge to use the ethernet port instead of fddi port when it hits the bridge. I even disabled the fddi dipswitch for management off, but no good. any ideas. thanks cross posted in mcc and bridge conferences subway::ammu
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1060.1 | Port 1 broken state may be problem | QUIVER::WALTER | Fri Aug 20 1993 17:47 | 17 | |
I think I can guess what's causing the long delay in the response. If
you use the standard FDDI loopback connectors on each of the 620's FDDI
ports, then to the bridge the ring will appear to be broken and port 1
will be in the broken state. When MCC sends a packet to the port 1 mac
address, it has to be "received" on that broken port. I don't mean
received physically, but the bridge software directs it to that logical
port since that's the true destination address. I suspect that the
broken state contributes to the long delay.
To solve the problem, remove the loopback connectors and install a
fiber patch cord between the two FDDI ports. That will create a legal
ring, having one member, the bridge.
Hope this helps.
Dave
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