璁＄畻鏈虹綉缁滅綉涓婁綔涓?/p>
(1)
绛旀
1
锛?/p>
鑻ヤ竴缃戠粶绯荤粺涓噰鐢?/p>
CRC
杩涜绾犻敊缂栫爜銆傚凡鐭ヤ紶杈撶殑淇℃伅鐮佷负
1011
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搴旂殑鐢熸垚澶氶」寮忎负
G(x)=x
4
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2
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闂緱鍒扮殑
CRC
鐮佹槸浠�涔堬紵鑻ユ帴鏀舵椂鏀跺埌
杩欐牱涓�涓蹭紶杈撶爜
10010011
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:
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1
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10101
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10110000/10101
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寰楀埌
CRC
涓?/p>
1101
锛?/p>
锛?/p>
2
锛夋槸鍙戠敓浜嗕紶杈撻敊璇�?/p>
2
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鍦?/p>
1000Mb/s
鐨勪互澶綉涓紝
鍏舵渶闀挎�荤嚎涓?/p>
500m
锛?/p>
淇″彿浼犳挱閫熷害涓?/p>
200m/
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s
锛?/p>
闂叾鍐茬獊绐楀彛鏄灏懳?/p>
s
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bit
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1
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200m/
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=5
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2
锛夋渶鐭抚闀垮害
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5
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3
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鍥犵壒缃戜笂鏈変竴
B
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255.255.240.0
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0
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1
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鏁版槸澶氬皯锛?/p>
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1
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8
涓瓙缃?/p>
锛?/p>
2
锛?/p>
锛?/p>
240
锛?/p>
10=
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128+64+32+16
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10=
锛?/p>
11110000
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2
Host-id
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11111111.11111111.11110000.00000000
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2^12-2
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1
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3
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鎺ョ潃灏嗘暟鎹瓑瀛楁鍔犱笂
鍘伙紝鏋勬垚瑕佸彂閫佺殑闈炰护鐗屽抚閫佸埌鐜笂銆?/p>
鈶?/p>
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