[BSCI]基础ISIS

 

 

R1配置

r1(config)#int lo0
r1(config-if)#ip ad 1.1.1.1 255.255.255.0
r1(config-if)#int s2/1
r1(config-if)#ip ad 192.168.1.1 255.255.255.0
r1(config-if)#no sh
r1(config-if)#ip router isis     接口上启用isis
r1(config)#router isis            全局启用isis
r1(config-router)#net 49.1111.1111.1111.1111.00           配置isis系统号
r1(config-router)#passive-interface lo0
r1(config-router)#end

R2配置
r2(config)#int lo0
r2(config-if)#ip ad 2.2.2.2 255.255.255.0
r2(config-if)#int s2/1
r2(config-if)#ip ad 192.168.1.2 255.255.255.0
r2(config-if)#no sh
r2(config-if)#ip router isis
r2(config-if)#int f0/0
r2(config-if)#ip ad 10.0.0.2 255.255.255.0
r2(config-if)#no sh
r2(config-if)#exi
r2(config)#router isis
r2(config-router)#net 49.1111.2222.2222.2222.00
r2(config-router)#passive-interface lo0
r2(config-router)#end

R3配置
3(config)#int lo0
r3(config-if)#ip ad 3.3.3.3 255.255.255.0
r3(config-if)#int f0/0
r3(config-if)#ip ad 10.0.0.3 255.255.255.0
r3(config-if)#no sh
r3(config-if)#ip router isis
r3(config-if)#exi
r3(config)#router isis
r3(config-router)#net 49.1111.3333.3333.3333.00
r3(config-router)#passive-interface lo0

R2上查看邻居
r2#sh clns nei

System Id      Interface   SNPA                State  Holdtime  Type Protocol
r1             Se2/1       *HDLC*              Up     26        L1L2 IS-IS
r3             Fa0/0       ca93.0a14.0000      Up     8         L1L2 IS-IS

R2查看接口
r2#sh clns int
FastEthernet0/0 is up, line protocol is up
  Checksums enabled, MTU 1497, Encapsulation SAP
  ERPDUs enabled, min. interval 10 msec.
  CLNS fast switching enabled
  CLNS SSE switching disabled
  DEC compatibility mode OFF for this interface
  Next ESH/ISH in 13 seconds
  Routing Protocol: IS-IS
    Circuit Type: level-1-2
           以下省略....

R2查看isis数据库
r2#sh isis da     

IS-IS Level-1 Link State Database:
LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime      ATT/P/OL
r1.00-00              0x00000004   0x6832        387               0/0/0
r2.00-00            * 0x00000005   0x0F16        1013              0/0/0
r3.00-00              0x00000003   0xA611        1007              0/0/0
r3.01-00              0x00000001   0x8C96        1008              0/0/0
IS-IS Level-2 Link State Database:
LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime      ATT/P/OL
r1.00-00              0x00000006   0xAFF4        1013              0/0/0
r2.00-00            * 0x00000006   0x5C8C        1019              0/0/0
r3.00-00              0x00000004   0xE97E        1016              0/0/0
r3.01-00              0x00000001   0x1C8F        1007              0/0/0

查看r2详细数据库
r2#sh isis da detail r2.00-00

IS-IS Level-1 LSP r2.00-00
LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime      ATT/P/OL
r2.00-00            * 0x00000005   0x0F16        957               0/0/0
  Area Address: 49.1111
  NLPID:        0xCC
  Hostname: r2
  IP Address:   2.2.2.2
  Metric: 10         IP 10.0.0.0 255.255.255.0
  Metric: 10         IP 192.168.1.0 255.255.255.0
  Metric: 0          IP 2.2.2.0 255.255.255.0
  Metric: 10         IS r1.00
  Metric: 10         IS r3.01
IS-IS Level-2 LSP r2.00-00
LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime      ATT/P/OL
r2.00-00            * 0x00000006   0x5C8C        958               0/0/0
  Area Address: 49.1111
  NLPID:        0xCC
  Hostname: r2
  IP Address:   2.2.2.2
  Metric: 10         IS r1.00
  Metric: 10         IS r3.01
  Metric: 10         IP 1.1.1.0 255.255.255.0
  Metric: 0          IP 2.2.2.0 255.255.255.0
  Metric: 10         IP 3.3.3.0 255.255.255.0
  Metric: 10         IP 10.0.0.0 255.255.255.0
  Metric: 10         IP 192.168.1.0 255.255.255.0