<?xml version="1.0" encoding="utf-8"?> <text> <s id="1"> <w id="1.1">2.9.1.2</w> <w id="1.2">Generalized</w> <w id="1.3">Switching</w> <w id="1.4">Fabric</w> </s> <s id="2"> <w id="2.1">In</w> <w id="2.2">the</w> <w id="2.3">case</w> <w id="2.4">of</w> <w id="2.5">generalized</w> <w id="2.6">switching</w> <w id="2.7">fabric</w> <w id="2.8">one</w> <w id="2.9">can</w> <w id="2.10">make</w> <w id="2.11">all</w> <w id="2.12">types</w> <w id="2.13">of</w> <w id="2.14">input</w> <w id="2.15">/</w> <w id="2.16">output</w> <w id="2.17">connections</w> <w id="2.18">,</w> <w id="2.19">i.e.</w> <w id="2.20">point‐to‐point</w> <w id="2.21">,</w> <w id="2.22">point‐multipoint</w> <w id="2.23">(</w> <w id="2.24">1</w> <w id="2.25">×</w> <w id="2.26">N</w> <w id="2.27">)</w> <w id="2.28">,</w> <w id="2.29">or</w> <w id="2.30">multicasting</w> <w id="2.31">(</w> <w id="2.32">N</w> <w id="2.33">×</w> <w id="2.34">1</w> <w id="2.35">)</w> <w id="2.36">.</w> </s> <s id="3"> <w id="3.1">In</w> <w id="3.2">general</w> <w id="3.3">,</w> <w id="3.4">it</w> <w id="3.5">is</w> <w id="3.6">an</w> <w id="3.7">(</w> <w id="3.8">N</w> <w id="3.9">×</w> <w id="3.10">R</w> <w id="3.11">)</w> <w id="3.12">matrix</w> <w id="3.13">with</w> <w id="3.14">2NR</w> <w id="3.15">connecting</w> <w id="3.16">states</w> <w id="3.17">.</w> </s> <s id="4"> <w id="4.1">Though</w> <w id="4.2">the</w> <w id="4.3">permutation</w> <w id="4.4">switch</w> <w id="4.5">has</w> <w id="4.6">only</w> <w id="4.7">one</w> <w id="4.8">point</w> <w id="4.9">closing</w> <w id="4.10">in</w> <w id="4.11">a</w> <w id="4.12">row</w> <w id="4.13">or</w> <w id="4.14">column</w> <w id="4.15">of</w> <w id="4.16">the</w> <w id="4.17">connection</w> <w id="4.18">matrix</w> <w id="4.19">,</w> <w id="4.20">for</w> <w id="4.21">generalized</w> <w id="4.22">fabric</w> <w id="4.23">switch</w> <w id="4.24">there</w> <w id="4.25">can</w> <w id="4.26">be</w> <w id="4.27">multiple</w> <w id="4.28">points</w> <w id="4.29">closing</w> <w id="4.30">in</w> <w id="4.31">a</w> <w id="4.32">row</w> <w id="4.33">or</w> <w id="4.34">column</w>