Osi domain, Synonymous areas – IBM SC30-3865-04 User Manual

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Synonymous Areas

When an L1 IS services more than one area, these additional areas are called
synonymous areas. A router can support any number of synonymous areas, as long
as there is an overlap of at least one area address between adjacent routers. For
example, in Figure 25 on page 292, Area 1 and Area 2 are synonymous areas to
each other and Areas 3 and 4 are also synonymous to each other.

Area 1

Area 2

L1/L2

backbone

Domain 1

Domain 2

Inter-Domain

Figure 24. OSI Domain

Using OSI/DECnet V

Chapter 9. Using OSI/DECnet V

291