设某路由器建立了如下的路由表 设某路由器建立了如下路由表（这三列分别是目的网络、子网掩码和...
\u8bbe\u67d0\u8def\u7531\u5668\u5efa\u7acb\u4e86\u5982\u4e0b\u8def\u7531\u8868(\u89e3\uff1a
\uff081\uff09\u5206\u7ec4\u7684\u76ee\u7684\u7ad9IP\u5730\u5740\u4e3a\uff1a128.96.39.10\u3002
\uff082\uff09\u5206\u7ec4\u7684\u76ee\u7684IP\u5730\u5740\u4e3a\uff1a128.96.40.12\u3002
\uff083\uff09\u5206\u7ec4\u7684\u76ee\u7684IP\u5730\u5740\u4e3a\uff1a128.96.40.151\u3002
\uff084\uff09\u5206\u7ec4\u7684\u76ee\u7684IP\u5730\u5740\u4e3a\uff1a192.4.153.17\u3002
\uff085\uff09\u5206\u7ec4\u7684\u76ee\u7684IP\u5730\u5740\u4e3a\uff1a192.4.153.90\u3002
\u8def\u7531\u8f6c\u53d1\u65f6\uff0c\u4f7f\u7528\u7684\u662f\u9012\u5f52\u67e5\u627e\u3001\u6700\u957f\u5339\u914d\uff0c\u5e76\u4e0d\u60f3\u4f60\u80fd\u60f3\u8c61\u7684\u90a3\u4e48\u667a\u80fd\u3002\u5b83\u4f1a\u5c06\u76ee\u7684IP\u5730\u5740\u4e0e\u6240\u6709\u5b50\u7f51\u63a9\u7801\u4e0e\uff0c\u7136\u540e\u9009\u62e9\u5339\u914d\u6700\u957f\u7684\u4f5c\u4e3a\u6700\u4f73\u8def\u5f84\uff0c\u8f6c\u53d1\u6570\u636e\u5305\u3002
\u8def\u7531\u8868\u4e0eFIB
\u6bcf\u4e2a\u8def\u7531\u5668\u4e2d\u90fd\u6709\u4e00\u4e2a\u8def\u7531\u8868\u548cFIB(Forward Information Base)\u8868\uff1a\u8def\u7531\u8868\u7528\u6765\u51b3\u7b56\u8def\u7531\uff0cFIB\u7528\u6765\u8f6c\u53d1\u5206\u7ec4\u3002\u8def\u7531\u8868\u4e2d\u6709\u4e09\u7c7b\u8def\u7531\uff1a
\uff081\uff09\u94fe\u8def\u5c42\u534f\u8bae\u53d1\u73b0\u7684\u8def\u7531\uff08\u5373\u662f\u76f4\u8fde\u8def\u7531\uff09
\uff082\uff09\u9759\u6001\u8def\u7531
\uff083\uff09\u52a8\u6001\u8def\u7531\u534f\u8bae\u53d1\u73b0\u7684\u8def\u7531\u3002
FIB\u8868\u4e2d\u6bcf\u6761\u8f6c\u53d1\u9879\u90fd\u6307\u660e\u5206\u7ec4\u5230\u67d0\u4e2a\u7f51\u6bb5\u6216\u8005\u67d0\u4e2a\u4e3b\u673a\u5e94\u8be5\u901a\u8fc7\u8def\u7531\u5668\u7684\u90a3\u4e2a\u7269\u7406\u63a5\u53e3\u53d1\u9001\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u5230\u8fbe\u8be5\u8def\u5f84\u7684\u4e0b\u4e00\u4e2a\u8def\u7531\u5668\uff0c\u6216\u8005\u4e0d\u518d\u7ecf\u8fc7\u522b\u7684\u8def\u7531\u5668\u800c\u4f20\u9001\u5230\u76f4\u63a5\u76f8\u8fde\u7684\u7f51\u7edc\u4e2d\u7684\u76ee\u7684\u4e3b\u673a\u3002
\u4ee5\u4e0a\u5185\u5bb9\u53c2\u8003\uff1a\u767e\u5ea6\u767e\u79d1-\u8def\u7531\u8868
\u8def\u7531\u8868\u6709\u6700\u957f\u524d\u7f00\u5339\u914d\u539f\u5219\u3002
\u8fd9\u4e48\u5177\u4f53\u7684\u5339\u914d\u539f\u5219\u8fd8\u771f\u6ca1\u89c1\u8fc7\uff0c\u4e0d\u77e5\u697c\u4e3b\u770b\u7684\u4ec0\u4e48\u4e66\u3002\u4ece\u63cf\u8ff0\u4e0a\u6765\u770b\uff0c\u4f18\u5148\u5339\u914d\u8def\u7531\u8868\u7684\u6761\u76ee\uff0c\u5982\u679c\u6761\u76ee\u4e2d\u6ca1\u6709\u5219\u5339\u914d\u6700\u77ed\u524d\u7f00\uff0c\u518d\u4ea4\u7ed9\u9ed8\u8ba4\u8def\u7531\u3002
\u8fd8\u6709\u9898\u76ee\u4e2d\u7684\u4e00\u4e2a\u63cf\u8ff0\u662f\u9519\u8bef\u7684
\u8def\u7531\u8868\u7ed9\u7684\u662f\u8f6c\u53d1\u63a5\u53e3\uff0c\u800c\u9898\u76ee\u95ee\u7684\u5374\u662f\u4e0b\u4e00\u8df3\u5730\u5740\u3002\u3002\u3002\u8fd9\u662f\u4e24\u4e2a\u6982\u5ff5\u3002\u62ffRIP\u4e3e\u4f8b\uff0c\u8f6c\u53d1\u63a5\u53e3\u7684\u5ea6\u91cf\u662f0\uff0c\u4e0b\u4e00\u8df3\u5730\u5740\u7684\u5ea6\u91cf\u662f1\u3002 \u4e25\u683c\u6765\u8bf4\u8def\u7531\u8868\u6ca1\u6709\u4e0b\u4e00\u8df3\u7684\u5730\u5740\uff0c\u6839\u672c\u8ba1\u7b97\u4e0d\u51fa\u6765\u4e0b\u4e00\u8df3\u3002
\u8fd9\u5e94\u8be5\u662f\u56fd\u4ea7\u4e66\u7684\u9519\u8bef\u3002 - -;
2 r2
3 r2
4 r1
5 路由表没给出来啊 下一站应该是和192.4.153.64 255.255.255.192 的那个
绛旓細1 鎺ュ彛1 2 r2 3 r2 4 r1 5 璺敱琛娌＄粰鍑烘潵鍟 涓嬩竴绔欏簲璇ユ槸鍜192.4.153.64 255.255.255.192 鐨勯偅涓
绛旓細鍥犳鏁版嵁鎶ュ湪璺敱鍣ㄥ繀椤昏繘琛屽垎鐗囥傝瘯闂浜屼釜灞鍩熺綉鍚戝叾涓婂眰瑕佷紶閫佸灏戞瘮鐗圭殑鏁版嵁(杩欓噷鐨勨滄暟鎹濆綋鐒舵寚鐨勬槸灞鍩熺綉鐪嬭鐨勬暟鎹)? 1200*3 + 80+160 = 3840bit 鍏4鐗 (鑰佸笀閽︾偣)4-20. 璁炬煇璺敱鍣ㄥ缓绔嬩簡濡備笅璺敱琛(杩欎笁鍒楀垎鍒槸鐩殑缃戠粶銆佸瓙缃戞帺鐮佸拰涓嬩竴璺宠矾鐢卞櫒,鑻ョ洿鎺ヤ氦浠樺垯鏈鍚庝竴鍒楄〃绀哄簲褰撲粠鍝竴涓帴鍙...
绛旓細鏃犵嚎璺敱鍣闈欐佽矾鐢卞姛鑳借缃柟娉曪細1銆佷娇鐢ㄨ矾鐢卞櫒绠＄悊鍦板潃鐧婚檰璺敱鍣˙绠＄悊鐣岄潰锛岀偣鍑烩滆矾鐢卞姛鑳解濊彍鍗曪紝閫夋嫨鈥滈潤鎬璺敱琛鈥濄2銆佺偣鍑烩滄坊鍔犳柊鏉＄洰鈥濇寜閽紝鍦ㄩ潤鎬佽矾鐢辫〃涓～鍐欑浉搴旂殑鍙傛暟銆3銆佺偣鍑烩滀繚瀛樷濇寜閽悗锛屽湪闈欐佽矾鐢辫〃涓彲浠ユ煡鐪嬪凡鏈夐厤缃4銆佸湪PC涓婅闂唴缃戞湇鍔″櫒锛屾娴嬮潤鎬佽矾鐢辨潯鐩槸鍚︾敓鏁堛傚鏋滆兘...
绛旓細鍦ㄨ绠楁満缃戣矾涓紝 璺敱琛 锛坮outing table锛夋垨绉 璺敱鎷╁煙淇℃伅搴 锛圧IB, Routing Information Base锛夛紝鏄竴涓瓨鍌ㄥ湪璺敱鍣鎴栬呰仈缃戣绠楁満涓殑鐢靛瓙琛ㄦ牸锛堟。妗堬級鎴栫被璧勬枡搴撱傝矾鐢辫〃瀛樺偍钁楁寚鍚戠壒瀹氱綉璺湴鍧鐨勮矾寰勶紙鍦ㄦ湁浜涙儏鍐典笅锛岃繕璁板綍鏈夎矾寰鐨勮矾鐢搴﹂噺鍊硷級銆傝矾鐢辫〃涓惈鏈夌綉璺懆杈圭殑鎷撴墤淇℃伅銆璺敱琛ㄥ缓绔鐨...
绛旓細鍦ㄨ绠楁満缃戠粶涓紝璺敱琛紙routing table锛夋垨绉拌矾鐢辨嫨鍩熶俊鎭簱锛圧IB, Routing Information Base锛夛紝鏄竴涓瓨鍌ㄥ湪璺敱鍣鎴栬呰仈缃戣绠楁満涓殑鐢靛瓙琛ㄦ牸锛堟枃浠讹級鎴栫被鏁版嵁搴撱傝矾鐢辫〃瀛樺偍鐫鎸囧悜鐗瑰畾缃戠粶鍦板潃鐨勮矾寰勶紙鍦ㄦ湁浜涙儏鍐典笅锛岃繕璁板綍鏈夎矾寰鐨勮矾鐢搴﹂噺鍊硷級銆傝矾鐢辫〃涓惈鏈夌綉缁滃懆杈圭殑鎷撴墤淇℃伅銆璺敱琛ㄥ缓绔鐨勪富瑕佺洰鏍...
绛旓細鍔ㄦ佽矾鐢辨槸鎸璺敱鍣鑳藉鑷姩鍦寤虹珛鑷繁鐨勮矾鐢辫〃锛屽苟涓旇兘澶熸牴鎹疄闄呮儏鍐电殑鍙樺寲閫傛椂鍦拌繘琛岃皟鏁淬傚熀鏈粙缁 涓枃鍚 锛氬姩鎬佽矾鐢 澶栨枃鍚 锛歞ynamic routing 绠杩,鍘熺悊,甯歌鍔ㄦ佽矾鐢卞崗瀹,RIP,OSPF,IS-IS,BGP,鐗圭偣,鍔ㄦ佽矾鐢遍厤缃ず渚,璁惧畾璁＄畻鏈虹殑IP,璁惧畾璺敱鍣ㄧ殑IP浣嶅潃,娴嬭瘯缃戣矾鑱旈氭, 绠杩 鍔ㄦ佽矾鐢...
绛旓細鏂规硶锛氱敤瀵瑰簲鍒嗙粍鐨処P鍦板潃鍚屼笂闈㈡瘡缁璺敱琛鐨勫瓙缃戞帺鐮佹寜浣嶄綔涓庤繍绠楋紝缁撴灉涓庢瘡缁勭殑缃戠粶鍙风浉姣旇緝锛屽尮閰嶇殑锛屽垯鍒嗙粍浠庤璺敱琛ㄩ」瀵瑰簲鐨勫嚭鍙ｈ浆鍙戯紱娌℃湁鍖归厤椤癸紝鍒欒蛋缂虹渷璺敱銆(1)128.96.39.10 128.96.39.10^255.255.255.128=128.96.39.0 鎵浠ワ紝鍖归厤绗竴椤癸紝鍒嗙粍璧版帴鍙0杞彂 (2)128.96.40....
绛旓細鍦ㄨ繖浜涘満鏅腑锛岄潤鎬佽矾鐢卞彲浠ユ彁渚涚ǔ瀹氥佸彲闈鐨勮矾鐢鏈嶅姟銆傞渶瑕佹敞鎰忕殑鏄紝铏界劧闈欐佽矾鐢卞湪鏌愪簺鍦烘櫙涓嬪彲鑳藉緢鏈夋晥锛屼絾鍦ㄥぇ澶氭暟鐜颁唬缃戠粶涓紝鍔ㄦ佽矾鐢卞崗璁紙濡侽SPF銆丅GP绛夛級鏇翠负甯歌鍜屾帹鑽愩傚姩鎬佽矾鐢卞崗璁彲浠ヨ嚜鍔ㄥ彂鐜扮綉缁滄嫇鎵戠粨鏋勭殑鍙樺寲锛屽苟鏇存柊璺敱琛锛屼粠鑰屾彁渚涙洿涓虹伒娲汇佸彲鎵╁睍鍜屽彲闈犵殑璺敱鏈嶅姟銆
绛旓細• 褰撴煇鏉￠潤鎬佽矾鐢变笂鐨凚FD浼氳瘽妫娴嬪埌鏁呴殰鐨勯摼璺噸鏂寤虹珛鎴愬姛鏃讹紝BFD浼氫笂鎶ョ郴缁燂紝婵娲昏璺敱锛屼娇璇ヨ矾鐢遍噸鏂板嚭鐜板湪IP璺敱琛涓傚睘浜庝笉鍚岀綉娈电殑涓绘満閫氳繃鍑犲彴Router鐩歌繛锛岃姹備笉閰嶇疆鍔ㄦ佽矾鐢卞崗璁紝瀹炵幇涓嶅悓缃戞鐨勪换鎰忎袱鍙颁富鏈轰箣闂磋兘澶熶簰閫氥傞噰鐢濡備笅鐨鎬濊矾閰嶇疆IPv4闈欐佽矾鐢憋細1.閰嶇疆鍚璺敱鍣鎺ュ彛鐨処P鍦板潃锛...
绛旓細鍦ㄨ绠楁満缃戠粶涓紝璺敱琛ㄦ垨绉拌矾鐢辨嫨鍩熶俊鎭簱锛圧IB锛夋槸涓涓瓨鍌ㄥ湪璺敱鍣鎴栬呰仈缃戣绠楁満涓殑鐢靛瓙琛ㄦ牸锛堟枃浠讹級鎴栫被鏁版嵁搴撱傝矾鐢辫〃瀛樺偍鐫鎸囧悜鐗瑰畾缃戠粶鍦板潃鐨勮矾寰勶紙鍦ㄦ湁浜涙儏鍐典笅锛岃繕璁板綍鏈夎矾寰鐨勮矾鐢搴﹂噺鍊硷級銆傝矾鐢辫〃涓惈鏈夌綉缁滃懆杈圭殑鎷撴墤淇℃伅銆璺敱琛ㄥ缓绔鐨勪富瑕佺洰鏍囨槸涓轰簡瀹炵幇璺敱鍗忚鍜岄潤鎬佽矾鐢遍夋嫨銆 鍦ㄧ幇浠...
