https://docs.ipinfusion.com/datacenter/index.html#page/OcNOS-DC_6.4.1/Layer3-Config/IS-IS-IPv4_Configurations.html#ww1045370
| Basic |
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R2#show running-config router isis
!
router isis 1
metric-style wide
net 49.0000.0000.0001.00
!
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| loopback |
R2#show running-config interface lo
!
interface lo
ip address 127.0.0.1/8
ip address 10.1.1.1/32 secondary
ipv6 address ::1/128
ip router isis 1
!
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| network interface |
R2#show running-config interface eth1
!
interface eth1
ip address 10.1.1.100/31
ip router isis 1
!
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| Show commands | Link |
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| CLNS | Connectionless Network Protocol CLNS is responsible for the connectionless delivery of data packets in the OSI network architecture. CLNS is less used, and IP is the preferred Layer3 |
| neighbors | show clns neighbors show clns is-neighbors
R2#show clns neighbors
Total number of L1 adjacencies: 1
Total number of L2 adjacencies: 1
Total number of adjacencies: 2
Tag 1: VRF : default
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth1 5000.0002.0001 Up 6 L1 IS-IS
Up 6 L2 IS-IS
R2#show clns is-neighbors
Tag 1: VRF : default
System Id Interface State Type Priority Circuit Id
0000.0000.0002 eth1 Up L1 64 0000.0000.0002.02
Up L2 64 0000.0000.0002.02
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| show isis |
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| show isis interface
R2>show isis interface
eth1 is up, line protocol is up
Routing Protocol: IS-IS (1)
Network Type: Broadcast
Circuit Type: level-1-2
Local circuit ID: 0x02
Extended Local circuit ID: 0x00000003
Local SNPA: 5000.0001.0001
IP interface address:
10.1.1.100/31
IPv6 interface address:
fe80::5200:ff:fe01:1/64
Level-1 Metric: 10/10, Priority: 64, Circuit ID: 0000.0000.0002.02
Number of active level-1 adjacencies: 1
Level-1 LSP MTU: 1492
Level-2 Metric: 10/10, Priority: 64, Circuit ID: 0000.0000.0002.02
Number of active level-2 adjacencies: 1
Level-2 LSP MTU: 1492
Next IS-IS LAN Level-1 Hello in 6 seconds
Next IS-IS LAN Level-2 Hello in 6 seconds
lo is up, line protocol is up
Routing Protocol: IS-IS (1)
Network Type: Loopback
Circuit Type: level-1-2
Local circuit ID: 0x01
Extended Local circuit ID: 0x00000001
IP interface address:
10.1.1.1/32
127.0.0.1/8
IPv6 interface address:
::1/128
Level-1 Metric: 10/10, Priority: 64, Circuit ID: 0000.0000.0000.00
Number of active level-1 adjacencies: 0
Level-1 LSP MTU: 1492
Level-2 Metric: 10/10, Priority: 64, Circuit ID: 0000.0000.0000.00
Number of active level-2 adjacencies: 0
Level-2 LSP MTU: 1492
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| show isis database show isis topology
R2>show isis database
Tag 1: VRF : default
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00* 0x00000006 0x42E7 731 0/0/0
0000.0000.0002.00-00 0x00000006 0x6EB8 740 0/0/0
0000.0000.0002.02-00 0x00000005 0x6F55 740 0/0/0
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00* 0x00000009 0xBA21 742 0/0/0
0000.0000.0002.00-00 0x00000008 0xB02A 745 0/0/0
0000.0000.0002.02-00 0x00000005 0x6F55 740 0/0/0
R2>show isis topology
Tag 1: VRF : default
IS-IS paths to level-1 routers
System Id Metric Next-Hop Interface SNPA
0000.0000.0001 --
0000.0000.0002 10 0000.0000.0002 eth1 5000.0002.0001
IS-IS paths to level-2 routers
System Id Metric Next-Hop Interface SNPA
0000.0000.0001 --
0000.0000.0002 10 0000.0000.0002 eth1 5000.0002.0001
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| show ip route |
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| show ip route [ isis ]
R2>show ip route
Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP
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 - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2,
ia - IS-IS inter area, E - EVPN,
v - vrf leaked
* - candidate default
IP Route Table for VRF "default"
C 10.1.1.1/32 is directly connected, lo, 01:15:13
i L1 10.1.1.2/32 [115/20] via 10.1.1.101, eth1, 00:48:42
C 10.1.1.100/31 is directly connected, eth1, 2d21h53m
C 127.0.0.0/8 is directly connected, lo, 2d21h53m
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