8.1 基本的集成ISIS配置
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1.R1配置
[R1]isis 1
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]isis enable 1
[R1]interface LoopBack 0
[R1-LoopBack0]isis enable 1
2.R2配置
[R2]isis 1
[R2-isis-1]network-entity 49.0001.0000.0000.2222.00
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]isis enable 1
[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]isis enable 1
[R2]interface LoopBack 0
[R2-LoopBack0]isis enable 1
3.R3配置
[R3]isis 1
[R3-isis-1]network-entity 49.0001.0000.0000.3333.00
[R3]interface GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]isis enable 1
[R3]interface LoopBack 0
[R3-LoopBack0]isis enable 1
4.查看ISIS邻居
[R2]display isis peer
0000.0000.1111 GE0/0/0 0000.0000.2222.01 Up 29s L1(L1L2) 64
0000.0000.1111 GE0/0/0 0000.0000.2222.01 Up 28s L2(L1L2) 64
0000.0000.3333 GE0/0/1 0000.0000.3333.01 Up 9s L1(L1L2) 64
0000.0000.3333 GE0/0/1 0000.0000.3333.01 Up 8s L2(L1L2) 64
5.查看ISIS信息
[R2]display isis brief
ISIS Protocol Information for ISIS(1)
SystemId: 0000.0000.2222 System Level: L12
Area-Authentication-mode: NULL
Domain-Authentication-mode: NULL
Ipv6 is not enabled
ISIS is in invalid restart status
ISIS is in protocol hot standby state: Real-Time Backup
Interface: 12.1.1.2(GE0/0/0)
Cost: L1 10 L2 10 Ipv6 Cost: L1 10 L2 10
State: IPV4 Up IPV6 Down
Type: BROADCAST MTU: 1497
Priority: L1 64 L2 64
Timers: Csnp: L1 10 L2 10 ,Retransmit: L12 5 , Hello: L1 10 L2 10 ,
Hello Multiplier: L1 3 L2 3 , LSP-Throttle Timer: L12 50
Interface: 23.1.1.2(GE0/0/1)
Cost: L1 10 L2 10 Ipv6 Cost: L1 10 L2 10
State: IPV4 Up IPV6 Down
Type: BROADCAST MTU: 1497
Priority: L1 64 L2 64
Timers: Csnp: L1 10 L2 10 ,Retransmit: L12 5 , Hello: L1 10 L2 10 ,
Hello Multiplier: L1 3 L2 3 , LSP-Throttle Timer: L12 50
Interface: 2.2.2.2(Loop0)
6.查看ISIS接口信息
[R2]display isis interface GigabitEthernet 0/0/0 verbose
Interface information for ISIS(1)
Interface Id IPV4.State IPV6.State MTU Type DIS
GE0/0/0 001 Up Down 1497 L1/L2 Yes/Yes
Circuit MT State : Standard
Description : HUAWEI, AR Series, GigabitEthernet0/0/0 Interface
SNPA Address : 00e0-fcbe-1abc
IP Address : 12.1.1.2
IPV6 Link Local Address :
IPV6 Global Address(es) :
Csnp Timer Value : L1 10 L2 10
Hello Timer Value : L1 10 L2 10
DIS Hello Timer Value : L1 3 L2 3
Hello Multiplier Value : L1 3 L2 3
LSP-Throttle Timer : L12 50
Cost : L1 10 L2 10
Ipv6 Cost : L1 10 L2 10
Priority : L1 64 L2 64
Retransmit Timer Value : L12 5
Bandwidth-Value : Low 1000000000 High 0
Static Bfd : NO
Dynamic Bfd : NO
Fast-Sense Rpr : NO
7.查看ISIS路由信息
[R2]display isis route
Route information for ISIS(1)
-----------------------------
ISIS(1) Level-1 Forwarding Table --------------------------------
IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags
-------------------------------------------------------------------------------
12.0.0.0/8 10 NULL GE0/0/0 Direct D/-/L/-
23.0.0.0/8 10 NULL GE0/0/1 Direct D/-/L/-
3.3.3.3/32 10 NULL GE0/0/1 23.1.1.3 A/-/L/-
2.2.2.2/32 0 NULL Loop0 Direct D/-/L/-
1.1.1.1/32 10 NULL GE0/0/0 12.1.1.1 A/-/L/-
Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut,
U-Up/Down Bit Set
ISIS(1) Level-2 Forwarding Table --------------------------------
IPV4 Destination IntCost ExtCost ExitInterface NextHop Flags
-------------------------------------------------------------------------------
12.0.0.0/8 10 NULL GE0/0/0 Direct D/-/L/-
23.0.0.0/8 10 NULL GE0/0/1 Direct D/-/L/-
3.3.3.3/32 10 NULL
2.2.2.2/32 0 NULL Loop0 Direct D/-/L/-
1.1.1.1/32 10 NULL
Flags: D-Direct, A-Added to URT, L-Advertised in LSPs, S-IGP Shortcut,
U-Up/Down Bit Set
8.查看ISIS链路状态信息
[R2]display isis lsdb
Database information for ISIS(1)
--------------------------------
Level-1 Link State Database
LSPID Seq Num Checksum Holdtime Length ATT/P/OL
-------------------------------------------------------------------------------
0000.0000.1111.00-00 0x00000005 0x936c 1125 86 0/0/0
0000.0000.2222.00-00* 0x00000007 0xa066 545 113 0/0/0
0000.0000.2222.01-00* 0x00000001 0x43a1 438 55 0/0/0
0000.0000.3333.00-00 0x00000005 0x353c 568 86 0/0/0
0000.0000.3333.01-00 0x00000001 0xfe7f 564 55 0/0/0
Total LSP(s): 5
*(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended),
ATT-Attached, P-Partition, OL-Overload
Level-2 Link State Database
LSPID Seq Num Checksum Holdtime Length ATT/P/OL
-------------------------------------------------------------------------------
0000.0000.1111.00-00 0x00000009 0x599c 1125 122 0/0/0
0000.0000.2222.00-00* 0x00000009 0x10b5 571 137 0/0/0
0000.0000.2222.01-00* 0x00000001 0x43a1 438 55 0/0/0
0000.0000.3333.00-00 0x00000007 0xc9b2 575 122 0/0/0
0000.0000.3333.01-00 0x00000001 0xfe7f 564 55 0/0/0
Total LSP(s): 5
*(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended),
ATT-Attached, P-Partition, OL-Overload
9.ISIS的silent配置
[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]isis silent
[R2]display isis peer
0000.0000.1111 GE0/0/0 0000.0000.2222.01 Up 23s L1(L1L2) 64
0000.0000.1111 GE0/0/0 0000.0000.2222.01 Up 23s L2(L1L2) 64
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