在OSPF中类型2的lsa有什么用？它并不用来生成路由，是干什么用的？ OSPF哪种类型的LSA是由自治系统边界路由器ASBR生成 ...
OSPF\u751f\u6210\u8def\u7531\u8868\u7684\u8fc7\u7a0b\u4e2d\uff0c1\u7c7bLSA\u751f\u6210\u4ec0\u4e48\u6837\u7684\u8def\u7531\uff0c2\u7c7b\uff0c3\u7c7b\u4ee5\u53ca4\u7c7b\uff0c5\u7c7b\u5462\uff1f\u5bf9\u4e8eOSPF\u6765\u8bf4\uff0c\u5e38\u7528\u7684\u51e0\u7c7bLSA\u610f\u4e49\u6bd4\u8f83\u91cd\u5927\u3002
\u5148\u6765\u770b\u770b\u5404\u79cdLSA\u7684\u5b9a\u4e49\u5427\uff1a
\u7b2c\u4e00\u7c7bLSA(\u8def\u7531\u5668LSA): \u6bcf\u53f0\u8def\u7531\u5668\u90fd\u4f1a\u4ea7\u751f\u4e00\u6761\u4e00\u7c7b\u7684LSA,\u5e76\u4e14\u4e00\u7c7b\u7684LSA\u53ea\u4f1a\u5728\u533a\u57df\u5185\u4f20\u9012\u3002
\u7b2c\u4e8c\u7c7bLSA(\u7f51\u7edcLSA): \u53ea\u5728DR/BDR\u9009\u4e3e\u7684\u591a\u8def\u8bbf\u95ee\u7f51\u7edc\u4e2d\u4ea7\u751f\uff0c\u70b9\u5230\u70b9\u6216\u8005\u5e27\u4e2d\u7ee7\u6ca1\u6709DR/BDR\u9009\u4e3e\uff0c\u6240\u4ee5\u4e0d\u4f1a\u4ea7\u751f\u4e8c\u7c7b\u7684LSA.
\u7b2c\u4e09\u7c7bLSA:(\u7f51\u7edc\u6c47\u603b) \u5c06\u533a\u57df\u5185\u7684LSA\u6c47\u603b\u548c\u7b80\u5316\uff0c\u5e76\u53d1\u5f80\u53e6\u4e00\u4e2a\u533a\u57df\uff0c\u7531ABR\u53d1\u9001\u3002
\u7b2c\u56db\u7c7bLSA:(ASBR\u6c47\u603bLSA):\u5916\u90e8\u8def\u7531\u91cd\u5206\u5e03\u8fdb\u6765\u4ee5\u540e\uff0c\u7531\u4e8eLSA\u7684Router-ID\u8fd8\u662fASBR\u7684\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u9700\u8981\u7531ABR\u544a\u77e5\u975eASBR\u533a\u57df\u7684\u8def\u7531\u5668\u4e00\u6761LSA,\u8c01\u662fASBR\u7684router-id\uff0c\u7531ABR\u53d1\u3002
\u7b2c\u4e94\u7c7bLSA:(AS\u5916\u90e8LSA):\u4ece\u5916\u90e8\u8def\u7531\u91cd\u5206\u5e03\u8fdbOSPF\uff0c\u643a\u5e26\u4e86ASBR\u7684Router-ID,\u4f1a\u518d\u6240\u6709\u7684OSPF\u533a\u57df\u5185\u8fdb\u884c\u4f20\u9012\uff0c\u4efb\u4f55\u8def\u7531\u5668\u90fd\u4e0d\u80fd\u66f4\u6539\u4ed6\u5f97router-id,\u7531ASBR\u59cb\u53d1\u3002
\u7b2c\u4e03\u7c7bLSA:(NSSA\u5916\u90e8LSA):NSSA\u533a\u57df\u5141\u8bb8\u6240\u6709ASBR\u5b58\u5728\uff0c\u5728\u628a\u5916\u90e8\u8def\u7531\u91cd\u5206\u53d1\u8fdbNSSA\u533a\u57df\u540e\uff0c\u5c06\u4ea7\u751f\u7b2c\u4e03\u7c7bLSA,7\u7c7b\u53ea\u4f1a\u5728NSSA\u533a\u57df\u4e2d\u4f20\u9012\uff0c\u5f53\u836f\u4f20\u9012\u5230\u5176\u4ed6\u7684\u533a\u57df\u65f6\uff0cABR\u4f1a\u5c067\u7c7bLSA\u8f6c\u6362\u62105\u7c7b\u7684LSA.
OSPF\u672b\u8282\u533a\u57df\uff1a
\u25cb\u672b\u8282\u533a\u57dfstub area\u4e0d\u4f1a\u4f20\u90125\u7c7bLSA
\u25cb\u5b8c\u5168\u672b\u8282\u533a\u57dftotally stub area\u4e0d\u4f1a\u4f20\u90123\u7c7b\u548c5\u7c7b\uff0c\u53ea\u901a\u8fc7\u4e00\u6761\u9ed8\u8ba4\u8def\u7531\u3002
\u25cbNSSA\uff0c\u540c\u672b\u8282\u533a\u57df\uff0c\u4f46\u53ef\u4ee5\u5b58\u5728ASBR.
\u25cbTotally NSSA: \u540c\u5b8c\u5168\u672b\u8282\u533a\u57df\uff0c\u4f46\u662f\u53ef\u4ee5\u5b58\u5728ASBR.
TTPE5\u7684LSA\u7531ASBR\u4ea7\u751f
1.Router LSA\uff08type1\uff09\uff1a\u672c\u533a\u57df\u4f20\u64ad\uff0c\u6240\u6709\u8def\u7531\u5668\u90fd\u80fd\u53d1\u9001\uff0c\u5185\u5bb9\u5305\u542b\u62d3\u6251\u4fe1\u606f\u3001\u8def\u7531\u4fe1\u606f
2.network LSA\uff08type2\uff09\uff1a\u672c\u57df\u7f51\u6bb5\u5185\u4f20\u64ad\uff0cDR\u4f20\u64ad\uff0c\u5185\u5bb9\u5305\u62ec\u62d3\u6251\u4fe1\u606f\uff08\u7f51\u7edc\u4e2d\u8def\u7531\u5668\u6570\u76ee\uff09\u3001\u63a9\u7801\u4fe1\u606f \uff0c\u6240\u4ee5\u5b83\u53ea\u6709\u5728MA\uff08muti access\uff09\u7f51\u7edc\u51fa\u73b0
3.summary LSA\uff08type3\uff09\uff1aABR\u4ea7\u751f\u5728\u6574\u4e2aOSPF\u57df\u4f20\u64ad
4.summary ASB LSA\uff08type4\uff09\uff1a\u9664\u4e86ASBR\u6240\u5728\u533a\u57df\u7684\u6240\u6709\u5176\u5b83OSPF\u57df\uff0c\u7531ASBR\u6240\u5728\u533a\u57df\u7684ABR\u4ea7\u751f\uff0c\u5185\u5bb9\u662f\u5230ASBR\u8def\u7531
5.external\uff08type5\uff09\uff1a\u7531ASBR\u4ea7\u751f\u5728\u6574\u4e2aOSPF\u57df\u4f20\u64ad\uff0c\uff0c\u5185\u5bb9\u5305\u62ec\u57df\u5916\u8def\u7531\uff08\u5373\u5176\u5b83\u7684\u8def\u7531\u534f\u8bae\uff09
1类LSA的内容：本路由器的直连邻居，直连接口的信息
2类LSA的内容：多路访问接口地址的掩码、接口互连的所有路由器
在多路访问网络中，不需要每台设备去描述多路访问接口，只需要DR来描述即可
假设有n台设备接入多路访问网络，如果用LSA1去描述，即每台设备都产生LSA1，那么就会有n条LSA1，如果用LSA2去描述，则只需1条。
绛旓細LSA绫诲瀷鍒嗙被涓庣壒鐐规湁鍝簺 姝ｆ枃鏍稿績瀵艰锛歀SA绫诲瀷鍒嗙被涓庣壒鐐规湁鍝簺鐨処T灏忕粡楠岋紝璇风湅涓嬮潰璇︾粏鐨勪粙缁嶃侽SPF瀹氫箟浜嗕笉鍚绫诲瀷鐨凩SA锛屾瘡绉嶇被鍨嬫壙杞界潃涓嶅悓鐨勭綉缁滄嫇鎵戜俊鎭傛牴鎹叾鍦ㄧ綉缁滀腑浼犳挱鐨勮寖鍥村拰鐩殑锛OSPF鐨凩SA鍙互鍒嗕负浠ヤ笅鍑犵绫诲瀷锛歍ype 1 LSA 鈥 璺敱鍣↙SA Type 1 LSA鏄OSPF涓鏈鍩烘湰鐨凩SA绫诲瀷锛屼篃绉...
绛旓細杩炴帴鍒板悓涓涓狾SPF鍖哄煙鐨勬墍鏈夎矾鐢卞櫒閮戒細鑾锋倝瀹屽叏鐩稿悓鐨勬嫇鎵戞暟鎹傛瘡鍙拌矾鐢卞櫒鍦ㄩ摼璺姸鎬佹暟鎹簱涓瓨鍌ㄨ繖浜涚敱閾捐矾鐘舵侀氬憡(LSA)缁勬垚鐨勭殑鏁版嵁銆傜劧鍚,璺敱鍣ㄥLSDB杩愯SPF(鏈鐭矾寰勪紭鍏)绠楁硶,浠ョ‘瀹氬墠寰姣忎釜瀛愮綉鐨勬渶浣宠矾鐢便 涓嬮潰灏变粙缁嶄笅OSPF涓鎵鏈夌被鍨鐨凩SA銆 鎬讳綋涓婃潵璇,鏈変互涓嬪嚑绉:1.绫诲瀷1:Router LSA2.绫诲瀷2:Networ...
绛旓細OSPF甯哥敤鐨凩SA绫诲瀷鏈鍝簺 鐢ㄤ簬OSPF(寮鏀惧紡鏈鐭矾寰勪紭鍏)涓殑LSA(閾捐矾鐘舵佸箍鎾)鏈夊摢浜涚被鍨?涓嬮潰璺熸垜浜嗚В涓涓嬪惂!John Bruke锛歄SPF(寮鏀惧紡鏈鐭矾寰勪紭鍏)鏄疘P缃戠粶鐨勪竴绉嶈矾鐢卞崗璁傚畠鐢ㄤ簬缁勭粐鍩熷唴鐨勮矾鐢遍夋嫨锛屾槸涓涓唴閮ㄧ綉鍏冲崗璁紝鑰屼笉鏄粍缁囧拰缁勭粐鐨勫煙闂磋矾鐢遍夋嫨(杈圭紭璺敱)銆傚叾瀹冨唴閮ㄨ矾鐢卞崗璁繕鏈塈S-IS(...
绛旓細鏂囨。鐜版诲叡11绉lsa瑙7绉峫sa 1 router LSA 2 network LSA 3 summary LSA 4 summary LSA 锛圓BR鍙戯級5 external LSA 锛圓SBR鍙戯級6 n1 LSA 锛堢粡瀹屽叏闈炵函鏈妭鍖哄煙 7 n2 LSA 锛堢粡瀹屽叏闈炵函鏈妭鍖哄煙 -
绛旓細[R1]dis ospf lsdb ase 192.168.4.0 1銆2銆3绫籐SA閮芥槸鍦ㄤ骇鐢鐨鍖哄煙鍐呰繘琛屾硾娲殑 閭5绫籐SA鏄惁涔熸槸涓鏍峰憿锛熸垜浠户缁坊鍔犱竴涓猂5锛岀敤鏉ュ仛涓嬩竴涓疄楠 R5鐨勭浉鍏抽厤缃涓 鍒繕璁板皢閾捐矾绫诲瀷杞崲涓簆2p锛岃繘鍏ユ帴鍙ｆā寮忎笅锛屾墽琛宱spf net p2p R3 娣诲姞瀵瑰簲鐨刬p鍜宎rea 0 浣垮緱涓や釜鎺ュ彛澶勫湪鍚屼竴OSPF鍖哄煙鍐 ...
绛旓細鏈2鏍嬫ゼ 妤奸噷鏈夋埧闂 鏈7绉嶄汉 绗1绉嶄汉鍜岀2绉嶄汉璐熻矗鎴块棿閲岀殑閫氫俊锛堣櫧鐒堕兘鏄礋璐ｄ竴涓埧闂撮氫俊浣嗗姛鑳戒笉涓鏍凤紝鑷繁鍖哄垎锛夌3绉嶄汉璐熻矗鎴块棿涓庢埧闂寸殑閫氫俊(ABR) 绗4涓汉璐熻矗鍛婅瘔鍒殑鎴块棿鎴戣礋璐ｇ殑鎴块棿鈥滈棬鈥濆湪閭ｏ紙ASBR) 锛岀5绉嶄汉璐熻矗妤间笌妤肩殑閫氫俊 绗7绉嶄汉璐熻矗鐗规畩妤煎拰妤肩殑閫氫俊 銆
绛旓細灏忓紵鑷繁鎬荤粨鐨锛屽鏈変笉姝ｇ‘鐨勫湴鏂硅鎸囧嚭銆傞骞插尯鍩熴佹櫘閫氬尯鍩熴佺壒娈婂尯鍩燂紙NSSA銆乀otally NSSA銆丼tub銆乀otally Stub锛夐兘浼氫骇鐢烺outer LSA锛圠SA Type1锛夈丯etwork LSA锛圠SA Type2锛OSPF鍗忚鍦ㄨ璁℃椂灏辫冭檻鍒扮幆璺殑闂锛屾晠姝ゅ湪璺敱鐢熸垚鑰咃紝娣诲姞浜哛outer ID淇℃伅锛岄槻姝㈣嚜宸变紶鍑哄幓鐨勬暟鎹湪浼犻佺粰鑷繁銆傛櫘閫氬尯鍩-...
绛旓細绠鍗鐨璇达紝閫氬憡璺敱鍣紙advertisement router锛変綘鏄湪huawei 鎴朒3C鐨勪氦鎹笂杈撳叆 display ospf lsdb 鍙互鐪嬪埌锛
绛旓細summary-lsa 鐢盇BR浜х敓锛屾弿杩颁竴璺冲尯鍩熼棿璺敱 asbr-summary lsa锛岀敱ABR浜х敓锛屾弿杩板浣曞埌杈続SBR external-las 鐢盇SBR浜х敓锛屾弿杩颁竴璺冲閮ㄨ矾鐢 nssa-lsa 鐢眓ssa鍖哄煙鐨ASBR浜х敓锛屼綔鐢ㄤ笌涓婇潰鐨勭被浼硷紝浣嗚寖鍥翠粎闄愪簬涓涓猲ssa鍖哄煙 杩欐槸鍥炵瓟绗竴涓棶棰橈紝涓嬮潰璇寸浜屼釜闂锛鍦╫spf閭诲眳寤虹珛鐨勮繃绋嬩腑锛屼細鏈変竴涓樁娈碘...
绛旓細OSPF鍖哄煙绫诲瀷鍒掑垎濡備笅锛1.楠ㄥ共鍖哄煙锛堝嵆浼犺緭鍖哄煙锛 锛歛rea 0 2.闈為骞插尯鍩燂紙鍗冲父瑙勫尯鍩燂級锛氶櫎area 0涔嬪鐨鍏朵粬鎵鏈夎鍙寖鍥村唴鐨勫尯鍩 闈為骞插尯鍩熷張鍙垝鍒嗗涓嬶細1.鏍囧噯鍖哄煙锛氬嵆姝ｅ父浼犺緭鏁版嵁鐨勫尯鍩2.鏈ⅱ鍖哄煙锛氱鐢ㄥ閮ˋS鐨勪俊鎭繘鍏ワ紝鍗崇鐢LSA 4锛孡SA 5绫讳俊鎭繘鍏(5绫讳俊鎭兘绂佺敤浜嗐傝4绫婚氬憡ASBR鏉ヤ篃...
