1 Dec 05 4:04
That's right, it suck.
Well, I can tell that a single element failure will not fail the system as the controlling unit (A) still can communicate with all other units in the system. Actually in some cases failure of two or more units will not put the entire system down but that depends on a location of defect units in the daisy chain.
But a single failure (for instance unit B) will result in a reduction of system’s primary function.
To better explain this, consider this system as a LAN system connected in a chain, where B, C, F and G are data switches which are used in combination and D and E could be data hubs in a combination as well.
Switches B||G and C||F are the switch combinations used to cover some areas, e.g. switches B &G physically cover the same areas (the same apply for C &G switches)) but are located on different locations.
If one unit fail, let’s say B, it will not have any impact on all other switches (C, F , G) or hubs in the system but this failure will reduce the number of Ethernet connections in the area covered by B & G.
Hope this clarify my problem, which is finding an appropriate model that really describe this system!!