| 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 |
Let me run this by you guys and see if it is legal.
I have a customer that has a DC500 and Gigaswitch connected
together via DEFCN-BA and DEFGL-AA with DEFXM-AA. This is
a SAS connection. This link is working fine.
He now wants to make another link between the two boxes via
DEFCN-EA and DEFGL-AA with DEFXS-AA. This also will be a SAS
connection.
I want to know if this would be a valid configuration or not. How
would this effect spanning tree, if it is valid? I personally
don't think this will work. A co-worker recommended making the
first link into a DAS link and then leave it alone. The second
link wouldn't be use. The customer's objective is redundancy.
Any insight would be appreciated,
Phil D.
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1812.1 | both are legal | NOTAPC::LEVY | Thu Sep 21 1995 14:56 | 7 | |
Both configurations are valid. One offers redundancy at the PHY level
(the dual-homing solution), the other at the datalink level (the
separate SAS solution).
The separate SAS solution is more robust (more of the functionality is
redundant), but I think the recovery time might be longer because of
spanning tree re-configuration time.
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