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鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng) 鐧婚寗 | 鍏嶈不娉ㄥ唺

RSTP
闁辫畝锛�8808鏅傞枔锛�2010-11-17 10:27:48

銆�銆�蹇��鐢熸垚妯瑰崝(xi茅)璀�锛坮apid spaning tree protocol锛夛細802.1w鐢�802.1d鐧�(f膩)灞曡�屾垚锛岄�欑ó鍗�(xi茅)璀板湪缍�(w菐ng)绲�(lu貌)绲�(ji茅)妲�(g貌u)鐧�(f膩)鐢熻畩鍖栨檪锛岃兘鏇村揩鐨勬敹鏂傜恫(w菐ng)绲�(lu貌)銆傚畠姣�802.1d澶氫簡鍏╃ó绔彛椤炲瀷锛氶爯(y霉)鍌欑鍙ｉ鍨嬶紙alternate port锛夊拰鍌欎唤绔彛椤炲瀷銆�

RSTP蹇�熼亷娓℃鍒�

銆�銆�閭婄罚绔彛锛氱暥(d膩ng)閺堣矾鐧�(f膩)鐢熻綁(zhu菐n)璁婃檪锛岄倞绶ｇ鍙ｄ笉鏈冪敘(ch菐n)鐢熸嫇鎾茶畩鏇撮�氱煡銆傚鏋滈倞绶ｇ鍙ｆ帴鏀跺埌BPDU鍫辨枃锛岄偅涔堝畠鏈冪珛鍗冲緸閭婄罚绔彛鐨勭媭鎱�(t脿i)閫插叆鍒版甯哥敓鎴愭ü绔彛銆�

銆�銆�閺堣矾椤炲瀷锛氬湪RSTP涓�锛屽皣閺堣矾鍒嗙偤鍏╃ó椤炲瀷锛岄粸鍒伴粸閺堣矾椤炲瀷鍜屽叡浜紡閺堣矾椤炲瀷銆傞粯瑾嶆儏娉佷笅锛屽鏋滅鍙ｅ伐浣滃湪鍏ㄩ洐宸ユā寮忎笅锛岄偅涔堣獚鐐哄畠鏄粸鍒伴粸鐨勯張璺鍨�锛屽鏋滅鍙ｅ伐浣滃湪鍗婇洐宸ョ殑宸ヤ綔妯″紡锛岄偅涔堣獚鐐哄畠鏄叡浜紡鐨勯張璺鍨�銆�

  

RSTP

RSTP鍏煎鎬�

銆�銆�RSTP 鍗�(xi茅)璀版渻鏍规摎(j霉)鏀跺埌鐨凚PDU 鐗堟湰铏熶締鑷嫊鍒ゆ柗鑸囦箣鐩搁�ｇ殑缍�(w菐ng)姗嬫槸鏀寔STP 鍗�(xi茅)璀伴倓鏄敮鎸丷STP 鍗�(xi茅)璀�銆傚鏋滄敹鍒癝TP  BPDU灏辨寜鐓TP 鐨勬搷浣滄柟寮忛亱琛屻��

銆�銆�瀛樺湪鐨勫晱椤�:

銆�銆�濡傛灉缍�(w菐ng)绲�(lu貌)涓湁涓�鑷洪亱琛孲TP鐨勪氦鎻涙锛屾渻灏�(d菐o)鑷存墍鏈夌殑浜ゆ彌姗熼兘浠TP鏂瑰紡閬嬭銆�

銆�銆�RSTP 鍗�(xi茅)璀版彁渚涗簡protocol-migration 鍔熻兘渚嗗挤鍒剁櫦(f膩)閫丷STP BPDU銆�

銆�銆�浜ゆ彌姗烝寮峰埗鐧�(f膩)閫丷STP BPDU锛屼氦鎻涙C鐧�(f膩)鐝�(xi脿n)鑸囦箣浜掗�ｇ殑缍�(w菐ng)姗嬫槸鏀寔RSTP鐨�锛岄�欐檪鍏╄嚭浜ゆ彌姗熷氨閮戒互RSTP 鍗�(xi茅)璀伴亱琛屼簡銆�

閰嶇疆RSTP

銆�銆�姝ラ1锛氶�插叆鍏ㄥ眬妯″紡

銆�銆�Switch#configure terminal

銆�銆�姝ラ2锛氶枊鍟熺敓鎴愭ü鍗�(xi茅)璀�

銆�銆�Switch(config)#spanning-tree

銆�銆�閵虫嵎浜ゆ彌姗熶笂锛岄粯瑾嶇媭鎱�(t脿i)涓婼TP鍗�(xi茅)璀版槸闂�(gu膩n)闁夌殑锛岄渶瑕佺敤鍛戒护鎵撻枊

銆�銆�姝ラ3锛氶厤缃敓鎴愭ü妯″紡

銆�銆�Switch(config)#spanning-tree mode { mstp | rstp | stp }

RSTP鐨凱/A鍗�(xi茅)鍟嗗揩閫熸敹鏂傛鍒�

銆�銆�P/A姗熷埗鍗砅roposal/Agreement姗熷埗銆傚叾鐩殑鏄娇涓�鍊嬫寚瀹氱鍙ｇ洝蹇�插叆Forwarding鐙�鎱�(t脿i)銆傚叾閬庣▼鐨勫畬鎴愭牴鎿�(j霉)浠ヤ笅骞惧�嬬鍙ｈ畩閲忥細

銆�銆�A锛塒roposing銆傜暥(d膩ng)涓�鍊嬫寚瀹氱鍙ｈ檿浜嶥iscarding鎴朙earning鐙�鎱�(t脿i)鐨勬檪鍊�锛岃┎璁婇噺缃綅銆傚苟鍚戜笅娓镐氦鎻涘偝閬濸roposal浣嶈缃綅鐨凚PDU銆�

銆�銆�B锛塒roposed銆傜暥(d膩ng)绔彛鏀跺埌灏嶇鐨勬寚瀹氱鍙ｇ櫦(f膩)渚嗙殑鏀滃付Proposal鐨凚PDU鐨勬檪鍊�銆傝┎璁婇噺缃綅銆傝┎鎸囩ず鏈恫(w菐ng)娈典笂鐨勬寚瀹氱鍙ｅ笇鏈涘繖閫插叆Forwarding鐙�鎱�(t脿i)銆�

銆�銆�C锛塻ync銆傜暥(d膩ng)Proposed琚ō(sh猫)缃互鍚�锛屾敹鍒癙roposal缃綅淇℃伅鐨勬牴绔彛鏈冧緷娆＄偤鑷繁鐨勫叾浠栫鍙ｇ疆浣峴ync璁婇噺銆傚鏋滅鍙ｆ槸闈為倞绶ｇ殑鎸囧畾绔彛鏄墖鏈冮�插叆Discarding鐙�鎱�(t脿i)銆�

銆�銆�D锛塻ynced銆傜暥(d膩ng)绔彛瀹屾垚杞�(zhu菐n)鍒癉iscarding鍚�锛�锛屾渻瑷�(sh猫)缃嚜宸辩殑synced璁婇噺銆侫lternate銆丅ackup鍜岄倞绶ｇ鍙ｆ渻棣笂瑷�(sh猫)缃┎璁婇噺銆傛牴绔彛鐩�(ji膩n)瑕栧叾浠栫鍙ｇ殑synced锛岀暥(d膩ng)鎵�鏈夊叾浠栫鍙ｇ殑synced鍏ㄨ瑷�(sh猫)缃�锛�锛屾牴绔彛鏈冭ō(sh猫)缃嚜宸辩殑synced锛岀劧鍚庡偝鍥濨PDU锛屽叾涓瑼greement闁忚缃綅銆�

銆�銆�E锛塧greed銆傜暥(d膩ng)鎸囧畾绔彛鎺ユ敹鍒颁竴鍊婤PDU鏅�锛屽鏋滆┎BPDU涓殑Agreement浣嶈缃綅涓旂鍙ｈ鑹插畾娈垫槸鈥滄牴绔彛鈥�锛岃┎璁婇噺琚ō(sh猫)缃�侫greed璁婇噺涓�鏃﹁缃綅锛屾寚瀹氱鍙ｉΜ涓婅綁(zhu菐n)鍏orwarding鐙�鎱�(t脿i)銆�

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