Information Technology Reference
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Tabl e 1 . Examination of L2SW addition
- For the number of Ethernet interfaces, hardware and software in the LC
are almost the same. In the FCP, two Ethernets cannot be achieved.
- For the number of L2SW, the disadvantage of increase in the number of
devices is small because L2SW is inexpensive and has a long MTBF.
- The transmission route between LC and FC when one L3SW breaks down
becomes only one route when L2SW is not added, as shown in Figure 6.
On the other hand, it becomes two routes when L2SW is added, and the
redundant configuration of transmission is ensured.
- For the addition of spare LC, when L2SW is not added, the re-composi-
tion of the network is needed and this is a large alteration.
From the evaluation of the above four points, we concluded that the addition
of L2SW was effective.
Fig. 6. Transmission route between LC and FC when one L3SW breaks down
