dual-attached

dual-attached

The form of FDDI interface where a device is connected to both FDDI token-passing rings, so that uninterrupted operation continues in the event of a failure of either of the rings. All connections to the main FDDI rings are dual-attached. Typically, a small number of critical infrastructure devices such as routers and concentrators are dual-attached, whereas host computers are normally single-attached or dual-homed to a router or concentrator.

For example, a ring could be formed between a single router and two concentrators (all dual-attached) then all other components that need to be fault-tolerant (typically file servers) can be dual-homed to both concentrators.
References in periodicals archive ?
The dual-attached Hall Green and Oxford handler has been informed that Buckfast Kid (Romford, February 24) and Babette (Hall Green, March 5) both tested positive for betablocker Timolol.
The May 09 whelp couldn't be in better hands, as dual-attached trainer Mike Peterson not only won Hall Green's first running of this stake with Asgard Class but also Oxford's version with Teds Porche four weeks later!

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