【正文】 State Holdtime Circuit Id r2 L2 Et0/0 UP 7 可以看到在更改 AID 的時候，先斷一下，然后鄰接關(guān)系重新建立。 r1(config)router isis r1(configrouter)no istype level2 r1(configrouter)istype level1 r1(configrouter)end r2(config)router isis r2(configrouter)no istype level2 r2(configrouter)istype level12 r2(configrouter)end r2cle isis * r2sh isis neighbors System Id Type Interface IP Address State Holdtime Circuit Id 因為 AID 不相同，所以不能形成鄰接關(guān)系。 r1(configrouter)end r1cle isis * r1sh isis neighbors System Id Type Interface IP Address State Holdtime Circuit Id r2 r1sh ip rou L1 Et0/0 UP 9 Codes: C connected, S static, R RIP, M mobile, B BGP D EIGRP, EX EIGRP external, O OSPF, IA OSPF inter area N1 OSPF NSSA external type 1, N2 OSPF NSSA external type 2 E1 OSPF external type 1, E2 OSPF external type 2 i ISIS, su ISIS summary, L1 ISIS level1, L2 ISIS level2 ia ISIS inter area, * candidate default, U peruser static route o ODR, P periodic downloaded static route Gateway of last resort is not set , 1 subs C i L1 is directly connected, Loopback0 , 1 subs [115/20] via , Ether0/0 C , Ether0/0 一臺 l2 路由器與一臺 l1/l2 路由器即使在它們的 AID 不相同也能形成 l2 鄰接關(guān)系 r1(config)router isis r1(configrouter)no istype level1 r1(configrouter)istype level2 r1(configrouter)end r1cle isis * r1sh isis n System Id Type Interface IP Address State Holdtime Circuit Id r2 L2 Et0/0 9 UP 7 大量 HPUX AIX cisco 華為學(xué)習(xí)資料，供大家學(xué)習(xí)。 r1(config)router isis r1(configrouter)no r1(configrouter) r1(configrouter)end r1cle isis * r1sh isis nei System Id Type Interface IP Address r1sh isis neighbors State Holdtime Circuit Id System Id Type Interface IP Address State Holdtime Circuit Id r2 L2 Et0/0 UP 9 鄰接關(guān)系先斷，然后重新建立。 System Id Type Interface IP Address State Holdtime Circuit Id r2 L2 Et0/0 UP 7 r1sh isis database ISIS Level1 Link State Database: LSPID ATT/P/OL LSP Seq Num LSP Checksum LSP Holdtime * 0x00000003 0x51B9 1173 1/0/0 ISIS Level2 Link State Database: LSPID ATT/P/OL LSP Seq Num LSP Checksum LSP Holdtime r1sh isis nei * 0x00000008 0x4E5A 0x00000006 0xEC55 0x00000002 0xAC30 1162 952 951 0/0/0 0/0/0 0/0/0 System Id Type Interface IP Address State Holdtime Circuit Id r2 L2 Et0/0 UP 8 只能形成 l2 鄰接關(guān)系 , 現(xiàn)在將 AID 更改成一樣。 0x00000002 0x1D37 1179 0/0/0 ISIS Level2 Link State Database: LSPID ATT/P/OL LSP Seq Num LSP Checksum LSP Holdtime * 0x0000000A 0x679C 0x00000007 0x108B 0x00000002 0xAC30 1194 1187 873 0/0/0 0/0/0 0/0/0 形成 l1/l2 鄰接關(guān)系。 第二章 命令 passiveinterface 作用 用來設(shè)置不啟用 isis 接口，關(guān)閉不必要的流量 設(shè)備需求 :cisco 3640 路由器二臺 r1(config)int lo0 r1(configif)ip add r1(configif)ip router isis r1(configif)int e0/0 12 大量 HPUX AIX cisco 華為學(xué)習(xí)資料，供大家學(xué)習(xí)。 r1sh clns is System Id Interface State Type Priority Circuit Id Format r2 r2sh clns is Et0/0 Up L1 64 Phase V System Id Interface State Type Priority Circuit Id 13 Format 大量 HPUX AIX cisco 華為學(xué)習(xí)資料，供大家學(xué)習(xí)。 r2(configif)int f1/0 r2(configif)no sh r2(configif)ip add r2(configif)no sh r2(configif)exit r3(config)int lo0 r3(configif)ip add r3(configif)no sh r3(configif)int f1/0 r3(configif)no sh r3(configif)ip add r3(configif)no sh r3(configif)end r1(config)int lo0 r1(configif)ip router isis r1(configif)int f1/0 r1(configif)ip router isis r1(configif)isis priority 100 注意這里的優(yōu)先級 0127 r1(configif)exit r1(config)router isis r1(configrouter) r1(configrouter)exit r2(config)int lo0 r2(configif)ip router isis r2(configif)int f1/0 r2(configif)ip router isis r2(configif)exit r2(config)router isis r2(configrouter) r2(configrouter)exit r3(config)int lo0 r3(configif)ip router isis r3(configif)int f1/0 r3(configif)ip router isis r3(configif)exi r3(config)router isis r3(configrouter) r3(configrouter)end 區(qū)域 id 15 大量 HPUX AIX cisco 華為學(xué)習(xí)資料，供大家學(xué)習(xí)。 System Id Interface SNPA State Holdtime Type Protocol r2 r3 Fa1/0 Fa1/0 Up Up 24 28 L1L2 ISIS L1L2 ISIS r1sh clns nei detail System Id Interface SNPA State Holdtime Type Protocol r2 Fa1/0 Area Address(es): Up 26 L1L2 ISIS r3 IP Address(es): * Uptime: 00:03:48 NSF capable Fa1/0 Area Address(es): IP Address(es): * Uptime: 00:03:01 NSF capable Up 26 L1L2 ISIS 清空 isis r1clearisis * r1sh isis nei System Id Type Interface IP Address State Holdtime Circuit Id r2 r2 r3 r3 L1 Fa1/0 L2 Fa1/0 L1 Fa1/0 L2 Fa1/0 UP UP UP UP 24 28 22 22 查看 isis 數(shù)據(jù)庫 r1sh isis database ISIS Level1 Link State Database: LSPID ATT/P/OL LSP Seq Num LSP Checksum LSP Holdtime * 0x00000002 0xF3F0 1138 0/0/0 * 0x00000003 0x9267 17 1135 0/0/0 大量 HPUX AIX cisco 華為學(xué)習(xí)資料，供大家學(xué)習(xí)。 CLNS fast swi