OSPF的3种数据库、4种接口类型、5种报文类型都是哪些?
ospf \u603b\u5171\u6709\u51e0\u79cd\u62a5\u6587\uff1fOSPF\u6709\u4e03\u79cd\u7c7b\u578bLSA\uff0c\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4e0b\uff1a
1\u3001\u8def\u7531\u5668LSA \uff08Router LSA\uff09
\u7531\u533a\u57df\u5185\u6240\u6709\u8def\u7531\u5668\u4ea7\u751f\uff0c\u5e76\u4e14\u53ea\u80fd\u5728\u672c\u4e2a\u533a\u57df\u5185\u6cdb\u6d2a\u5e7f\u64ad\u3002
\u8fd9\u4e9b\u6700\u57fa\u672c\u7684LSA\u901a\u544a\u5217\u51fa\u4e86\u8def\u7531\u5668\u6240\u6709\u7684\u94fe\u8def\u548c\u63a5\u53e3\uff0c\u5e76\u6307\u660e\u4e86\u5b83\u4eec\u7684\u72b6\u6001\u548c\u6cbf\u6bcf\u6761\u94fe\u8def\u65b9\u5411\u51fa\u7ad9\u7684\u4ee3\u4ef7\u3002
2\u3001\u7f51\u7edcLSA \uff08Network LSA\uff09
\u7531\u533a\u57df\u5185\u7684DR\u6216BDR\u8def\u7531\u5668\u4ea7\u751f\uff0c\u62a5\u6587\u5305\u62ecDR\u548cBDR\u8fde\u63a5\u7684\u8def\u7531\u5668\u7684\u94fe\u8def\u4fe1\u606f\u3002
\u7f51\u7edcLSA\u4e5f\u4ec5\u4ec5\u5728\u4ea7\u751f\u8fd9\u6761\u7f51\u7edcLSA\u7684\u533a\u57df\u5185\u90e8\u8fdb\u884c\u6cdb\u6d2a\u3002
3\u3001\u7f51\u7edc\u6c47\u603bLSA \uff08Network summary LSA\uff09
\u7531ABR\u4ea7\u751f\uff0c\u53ef\u4ee5\u901a\u77e5\u672c\u533a\u57df\u5185\u7684\u8def\u7531\u5668\u901a\u5f80\u533a\u57df\u5916\u7684\u8def\u7531\u4fe1\u606f\u3002
\u5728\u4e00\u4e2a\u533a\u57df\u5916\u90e8\u4f46\u662f\u4ecd\u7136\u5728\u4e00\u4e2aOSPF\u81ea\u6cbb\u7cfb\u7edf\u5185\u90e8\u7684\u7f3a\u7701\u8def\u7531\u4e5f\u53ef\u4ee5\u901a\u8fc7\u8fd9\u79cdLSA\u6765\u901a\u544a\u3002
\u5982\u679c\u4e00\u53f0ABR\u8def\u7531\u5668\u7ecf\u8fc7\u9aa8\u5e72\u533a\u57df\u4ece\u5176\u4ed6\u7684ABR\u8def\u7531\u5668\u6536\u5230\u591a\u6761\u7f51\u7edc\u6c47\u603bLSA\uff0c\u90a3\u4e48\u8fd9\u53f0\u59cb\u53d1\u7684ABR\u8def\u7531\u5668\u5c06\u4f1a\u9009\u62e9\u8fd9\u4e9bLSA\u901a\u544a\u4e2d\u4ee3\u4ef7\u6700\u4f4e\u7684LSA\uff0c\u5e76\u4e14\u5c06\u8fd9\u4e2aLSA\u7684\u6700\u4f4e\u4ee3\u4ef7\u901a\u544a\u7ed9\u4e0e\u5b83\u76f8\u8fde\u7684\u975e\u9aa8\u5e72\u533a\u57df\u3002
4\u3001ASBR\u6c47\u603bLSA \uff08ASBR summary LSA\uff09
\u4e5f\u662f\u7531ABR\u4ea7\u751f\uff0c\u4f46\u662f\u5b83\u662f\u4e00\u6761\u4e3b\u673a\u8def\u7531\uff0c\u6307\u5411ASBR\u8def\u7531\u5668\u5730\u5740\u7684\u8def\u7531\u3002
5\u3001\u81ea\u6cbb\u7cfb\u7edf\u5916\u90e8LSA \uff08Autonomous system external LSA\uff09
\u7531ASBR\u4ea7\u751f\uff0c\u544a\u8bc9\u76f8\u540c\u81ea\u6cbb\u533a\u7684\u8def\u7531\u5668\u901a\u5f80\u5916\u90e8\u81ea\u6cbb\u533a\u7684\u8def\u5f84\u3002
\u81ea\u6cbb\u7cfb\u7edf\u5916\u90e8LSA\u662f\u60df\u4e00\u4e0d\u548c\u5177\u4f53\u7684\u533a\u57df\u76f8\u5173\u8054\u7684LSA\u901a\u544a\uff0c\u5c06\u5728\u6574\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u4e2d\u8fdb\u884c\u6cdb\u6d2a\u3002
6\u3001\u7ec4\u6210\u5458LSA \uff08Group membership LSA\uff09 * \u76ee\u524d\u4e0d\u652f\u6301\u7ec4\u64adOSPF \uff08MOSPF\u534f\u8bae\uff09
7\u3001NSSA\u5916\u90e8LSA \uff08NSSA External LSA\uff09
\u7531ASBR\u4ea7\u751f\uff0c\u51e0\u4e4e\u548cLSA 5\u901a\u544a\u662f\u76f8\u540c\u7684\uff0c\u4f46NSSA\u5916\u90e8LSA\u901a\u544a\u4ec5\u4ec5\u5728\u59cb\u53d1\u8fd9\u4e2aNSSA\u5916\u90e8LSA\u901a\u544a\u7684\u975e\u7eaf\u672b\u68a2\u533a\u57df\u5185\u90e8\u8fdb\u884c\u6cdb\u6d2a\u3002
\u4e94\u79cd\uff1a
Hello
DD(Database Description)
LSR(Link State Request)
LSU(Link State Update)
LSAck(Link State Acknowlegement)
4种接口类型是 广播，NBMA，点到点，点到多点
5种报文类型是 hello，dbd，lsr，lsu，ls-ack
希望能帮到你！
绛旓細OSPF鐨3绉嶆暟鎹簱 搴旇鏄 閭诲眳琛紝鎷撴墤琛紝璺敱琛 4绉嶆帴鍙ｇ被鍨嬫槸 骞挎挱锛孨BMA锛岀偣鍒扮偣锛岀偣鍒板鐐 5绉嶆姤鏂囩被鍨嬫槸 hello锛宒bd锛宭sr锛宭su锛宭s-ack 甯屾湜鑳藉府鍒颁綘锛
绛旓細绗竴绫.璺敱鍣↙SA.ROUTER LSA鎻忚堪浜嗚矾鐢卞櫒鐗╃悊鎺ュ彛鎵杩炴帴鐨勯摼璺垨鎺ュ彛,鎸囨槑浜嗛摼璺殑鐘舵,浠ｄ环绛.姣忎釜OSPF鍖哄煙鍐呯殑璺敱鍣ㄥ潎鍥炰骇鐢熺涓绫籐SA.瀹冭璺敱鍣ㄥ郊姝よ璇嗗郊姝ょ殑閾捐矾 鎺ュ彛绛.鍙湪浜х敓鐨勫尯鍩熷唴娉涙椽.绗簩绫.缃戠粶LSA Network LSA鏄敱DR濮嬪彂鐨,瀹冩弿杩颁簡涓涓璺闂綉缁滄墍鏈夌浉杩炵殑璺敱鍣,鍙湪浜х敓鐨...
绛旓細OSPF鐨勪笁绉嶇鐐圭被鍨嬪簲璇ュ垎鍒槸锛歄SPF 璺敱鍣ㄧ被鍨嬨丱SPF 缃戠粶绫诲瀷浠ュ強DR銆丅DR浣滅敤鍜岄変妇銆傛澶栬繕鏈変竴涓骞插尯鍩熶綔鐢ㄣ傚嵆鍒掑垎鍖哄煙鍚庯紝鍖哄煙闂撮氳繃3绫籐SA浼犻掕矾鐢变俊鎭紝姝ゆ椂鐨凩SA涓嶅寘鎷摼璺姸鎬侊紝鍙槸璺敱淇℃伅銆傚尯鍩熼棿姝ゆ椂閲囩敤D-V绠楁硶锛屾棤娉曢伩鍏嶇幆璺
绛旓細鎸囧畾璺敱鍣ㄢ擠R:鍦ㄤ竴涓箍鎾х殑銆佸鎺ュ叆鐨勭綉缁(渚嬪Ether銆乀okenRing鍙奆DDI鐜)涓,瀛樺湪涓涓寚瀹氳矾鐢卞櫒(Designated Router),鎸囧畾璺敱鍣ㄤ富瑕佸湪OSPF鍗忚涓畬鎴愬涓嬪伐浣:鎸囧畾璺敱鍣ㄤ骇鐢熺敤浜庢弿杩版墍澶勭殑缃戞鐨勯摼璺鏁版嵁鍖呪攏eork link,璇ユ暟鎹寘閲屽寘鍚湪璇ョ綉娈典笂鎵鏈夌殑璺敱鍣,鍖呮嫭鎸囧畾璺敱鍣ㄦ湰韬殑鐘舵佷俊鎭傛寚瀹氳矾鐢卞櫒涓庢墍鏈...
绛旓細璇ュ崗璁毝灞炰簬鍐呴儴缃戝叧鍗忚锛圛GP锛夛紝鍥犳鍦ㄨ嚜娌荤郴缁熷唴杩愯銆OSPF鍒嗕负OSPFv2鍜孫SPFv3涓や釜鐗堟湰,鍏朵腑OSPFv2鐢ㄥ湪IPv4缃戠粶銆侽SPF涔熺О涓鎺ュ彛鐘舵佽矾鐢卞崗璁紝OSPF閫氳繃閫氱煡璺敱鍣ㄤ箣闂寸殑缃戠粶鎺ュ彛鐘舵佸缓绔嬮摼璺姸鎬鏁版嵁搴擄紝鐢熸垚鏈鐭矾寰勬爲銆傛瘡涓狾SPF璺敱鍣ㄤ娇鐢ㄨ繖浜涙渶鐭矾寰勬潵鏋勫缓璺敱琛ㄣ
绛旓細鏈鏂扮増鍙細鍜岀敱RFC 2138銆1 5 8 3鍜1 2 4 7鎵瑙勮寖鐨勭増鏈繘琛屼簰鎿嶄綔銆 閾捐矾鏄矾鐢卞櫒鎺ュ彛鐨勫彟涓绉嶈娉,鍥犳OSPF涔熺О涓烘帴鍙ｇ姸鎬佽矾鐢卞崗璁侽SPF閫氳繃璺敱鍣ㄤ箣闂撮氬憡缃戠粶鎺ュ彛鐨勭姸鎬佹潵寤虹珛閾捐矾鐘舵鏁版嵁搴,鐢熸垚鏈鐭矾寰勬爲,姣忎釜OSPF璺敱鍣ㄤ娇鐢ㄨ繖浜涙渶鐭矾寰勬瀯閫犺矾鐢辫〃銆 OSPF璺敱鍗忚鏄竴绉嶅吀鍨嬬殑閾捐矾鐘舵(Link-state)...
绛旓細OSPF閲囩敤閾捐矾(璺敱鍣鎺ュ彛鐨勫彟涓绉嶈娉)鐘舵佸崗璁畻娉曪紝姣忎釜璺敱鍣ㄧ淮鎶や竴涓浉鍚岀殑閾捐矾鐘舵鏁版嵁搴擄紝淇濆瓨鏁翠釜AS鐨勬嫇鎵戠粨鏋(AS涓嶅垝鍒嗘儏鍐典笅)銆備竴鏃︽瘡涓矾鐢卞櫒鏈変簡瀹屾暣鐨勯摼璺姸鎬佹暟鎹簱锛岃璺敱鍣ㄥ氨鍙互鑷繁涓烘牴锛屾瀯閫犳渶鐭矾寰勬爲锛岀劧鍚庡啀鏍规嵁鏈鐭矾寰勬瀯閫犺矾鐢辫〃銆傚浜庡ぇ鍨嬬殑缃戠粶锛屼负浜嗚繘涓姝ュ噺灏戣矾鐢卞崗璁氫俊娴侀噺锛...
绛旓細ospf鐨鍒嗙粍鏈5绉嶇被鍨嬶紝鍒嗗埆鏄疕ello鍒嗙粍锛屾瘡涓矾鐢卞櫒鍙戦乭ello鍒嗙粍锛岀‘瀹氳矾鐢卞櫒涔嬮棿鐨刵eighbor鍏崇郴锛屾暟鎹簱鎻忚堪鍒嗙粍涓昏鏄敤鏉ユ弿杩拌矾鐢卞櫒鎴栬矾鐢卞櫒鍖哄煙鍐呰矾鐢变俊鎭殑鍙樻洿鎯呭喌骞朵笖鍙戦佺粰閭绘帴璺敱鍣紝涓婚摼璺垎缁勬槸鐢ㄤ簬鍗忓晢璺敱鍣ㄤ笌璺敱鍣ㄤ箣闂寸殑dr銆乥dr瑙掕壊骞挎挱璺敱淇℃伅锛屼紶閫佸垎缁勭敤鏉ュ彂閫佸紓姝ユ秷鎭紝涓昏鐢ㄤ簬鎺у埗鍥炴祦锛...
绛旓細OSPF鍗忚鏄竴绉嶉摼璺姸鎬佸崗璁傛瘡涓矾鐢卞櫒璐熻矗鍙戠幇銆佺淮鎶や笌閭诲眳鐨勫叧绯伙紝骞跺皢宸茬煡鐨勯偦灞呭垪琛ㄥ拰閾捐矾璐圭敤LSU鎶ユ枃鎻忚堪锛岄氳繃鍙潬鐨勬硾娲笌鑷不绯荤粺AS(Autonomous System)鍐呯殑鍏朵粬璺敱鍣ㄥ懆鏈熸т氦浜掞紝瀛︿範鍒版暣涓嚜娌荤郴缁熺殑缃戠粶鎷撴墤缁撴瀯;骞堕氳繃鑷不绯荤粺杈圭晫鐨勮矾鐢卞櫒娉ㄥ叆鍏朵粬AS鐨勮矾鐢变俊鎭紝浠庤屽緱鍒版暣涓狪nternet鐨勮矾鐢变俊鎭
绛旓細璇ユ暟鎹簱涓瓨鏀剧殑鏄矾鐢卞煙涓浉搴旈摼璺殑鐘舵佷俊鎭紝OSPF璺敱鍣ㄦ鏄氳繃杩欎釜鏁版嵁搴撹绠楀嚭鍏禣SPF璺敱琛ㄧ殑銆傞摼璺槸璺敱鍣鎺ュ彛鐨勫彟涓绉嶈娉曪紝鍥犳OSPF涔熺О涓烘帴鍙ｇ姸鎬佽矾鐢卞崗璁侽SPF閫氳繃璺敱鍣ㄤ箣闂撮氬憡缃戠粶鎺ュ彛鐨勭姸鎬佹潵寤虹珛閾捐矾鐘舵鏁版嵁搴擄紝鐢熸垚鏈鐭矾寰勬爲锛屾瘡涓狾SPF璺敱鍣ㄤ娇鐢ㄨ繖浜涙渶鐭矾寰勬瀯閫犺矾鐢辫〃銆
