ocr: Z Z / - J - D 5 X W) : a a C a (b s a : W network Subdomains of addressing the global domain - - a Subdomains of W and Y W CCITT-86900 9 Subdomains of b (a) Inverted tree diagram (b) Domain diagram FIGURE A-4/X.213 Hicrachical structure of NSAP addresses
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