R1(config)#router isis
R1(config-router)#net 49.000a.0000.0000.0001.00
R1(config-router)#is-type level-1
R1(config-router)#exit
R1(config)#int lo0
R1(config-if)#ip add 1.1.1.1 255.255.255.0
R1(config-if)#ip router isis
R1(config-if)#exit
R1(config)#int fa0/0
R1(config-if)#ip add 10.1.13.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#ip router isis
R1(config-if)#end
R2(config-router)#net 49.000a.0000.0000.0002.00
R2(config-router)#is-type level-1
R2(config-router)#exit
R2(config)#int fa0/0
R2(config-if)#ip add 10.1.23.2 255.255.255.0
R2(config-if)#no shut
R2(config-if)#ip router isis
R2(config-if)#exit
R2(config-if)#exit
R2(config)#int lo0
R2(config-if)#ip add 2.2.2.2
R2(config-if)#ip add 2.2.2.2 255.255.255.0
R2(config-if)#ip router isis
R2(config-if)#end
R3(config)#router isis
R3(config-router)#net 49.000a.0000.0000.0003.00
R3(config-router)#is-type level-1-2
R3(config-router)#exit
R3(config)#int fa1/0
R3(config-if)#ip add 10.1.13.3 255.255.255.0
R3(config-if)#no shut
R3(config-if)#ip router isis
R3(config-if)#exit
R3(config)#int fa2/0
R3(config-if)#ip add 10.1.23.3 255.255.255.0
R3(config-if)#no shut
R3(config-if)#ip router isis
R3(config-if)#exit
R3(config)#
R3(config)#int fa0/0
R3(config-if)#ip add 10.1.34.3 255.255.255.0
R3(config-if)#no shut
R3(config-if)#ip router isis
R3(config-if)#end
R3(config)#int lo0
R3(config-if)#ip add 3.3.3.3 255.255.255.0
R3(config-if)#no shut
R3(config-if)#ip router isis
R3(config-if)#end
R4(config)#router isis
R4(config-router)#net 49.000b.0000.0000.0004.00
R4(config-router)#is-type level-1-2
R4(config-router)#exit
R4(config)#int fa0/0
R4(config-if)#ip add 10.1.34.4 255.255.255.0
R4(config-if)#no shut
R4(config-if)#ip router isis
R4(config-if)#exit
R4(config)#int fa1/0
R4(config-if)#ip add 10.1.45.4 255.255.255.0
R4(config-if)#no shut
R4(config-if)#ip router isis
R4(config-if)#exit
R4(config)#int fa2/0
R4(config-if)#ip add 10.1.46.4 255.255.255.0
R4(config-if)#no shut
R4(config-if)#ip router isis
R4(config-if)#end
R4(config)#int lo0
R4(config-if)#ip add 4.4.4.4 255.255.255.0
R4(config-if)#no shut
R4(config-if)#ip router isis
R4(config-if)#end
R5(config)#router isis
R5(config-router)#net 49.000b.0000.0000.0005.00
R5(config-router)#is-type level-1
R5(config-router)#exit
R5(config)#int lo0
R5(config-if)#ip add 5.5.5.5 255.255.255.0
R5(config-if)#no shut
R5(config-if)#ip router isis
R5(config-if)#exit
R5(config)#int fa0/0
R5(config-if)#ip add 10.1.45.5 255.255.255.0
R5(config-if)#no shut
R5(config-if)#ip router isis
R5(config-if)#end
R6(config)#router isis
R6(config-router)#net 49.000b.0000.0000.0006.00
R6(config-router)#is-type level-1
R6(config-router)#exit
R6(config)#int lo0
R6(config-if)#ip add 6.6.6.6 255.255.255.0
R6(config-if)#no shut
R6(config-if)#ip router isis
R6(config-if)#exit
R6(config)#int fa0/0
R6(config-if)#ip add 10.1.46.6 255.255.255.0
R6(config-if)#no shut
R6(config-if)#ip router isis
R6(config-if)#end
R1#sho isis neighbors
System Id Type
Interface IP Address State Holdtime
Circuit Id
R3 L1 Fa0/0
10.1.13.3 UP 7
R3.01
R2#sho isis neighbors
System Id Type
Interface IP Address State Holdtime
Circuit Id
R3 L1 Fa0/0
10.1.23.3 UP 6
R3.02
R3#sho isis neighbors
System Id Type
Interface IP Address State Holdtime
Circuit Id
R4 L2 Fa0/0
10.1.34.4 UP 7
R4.01
R2 L1 Fa2/0
10.1.23.2 UP 22
R3.02
R1 L1 Fa1/0
10.1.13.1 UP 27
R3.01
R4#sho isis neighbors
System Id Type
Interface IP Address State Holdtime
Circuit Id
R5 L1 Fa1/0
10.1.45.5 UP 7
R5.02
R6 L1 Fa2/0
10.1.46.6 UP 9
R6.02
R3 L2 Fa0/0
10.1.34.3 UP 29
R4.01
R5#sho isis neighbors
System Id Type
Interface IP Address State Holdtime
Circuit Id
R4 L1 Fa0/0
10.1.45.4 UP 24
R5.02
R6#sh isis neighbors
System Id Type
Interface IP Address State Holdtime
Circuit Id
R4 L1 Fa0/0
10.1.46.4 UP 29
R6.02
R1#sho isis topology
IS-IS paths to level-1 routers
System Id
Metric Next-Hop Interface SNPA
R1
--
R2
20 R3 Fa0/0 cc03.0a04.0010
R3
10 R3 Fa0/0 cc03.0a04.0010
R1#sho ip route isis
2.0.0.0/24 is
subnetted, 1 subnets
i L1 2.2.2.0
[115/30] via 10.1.13.3, FastEthernet0/0
3.0.0.0/24 is
subnetted, 1 subnets
i L1 3.3.3.0
[115/20] via 10.1.13.3, FastEthernet0/0
10.0.0.0/24 is
subnetted, 3 subnets
i L1 10.1.23.0
[115/20] via 10.1.13.3, FastEthernet0/0
i L1 10.1.34.0
[115/20] via 10.1.13.3, FastEthernet0/0
i*L1 0.0.0.0/0 [115/10] via 10.1.13.3, FastEthernet0/0
R2#sho ip route isis
1.0.0.0/24 is
subnetted, 1 subnets
i L1 1.1.1.0
[115/30] via 10.1.23.3, FastEthernet0/0
3.0.0.0/24 is
subnetted, 1 subnets
i L1 3.3.3.0
[115/20] via 10.1.23.3, FastEthernet0/0
10.0.0.0/24 is
subnetted, 3 subnets
i L1 10.1.13.0
[115/20] via 10.1.23.3, FastEthernet0/0
i L1 10.1.34.0
[115/20] via 10.1.23.3, FastEthernet0/0
i*L1 0.0.0.0/0 [115/10] via 10.1.23.3, FastEthernet0/0
R3#sho isis topology
IS-IS paths to level-1 routers
System Id
Metric Next-Hop Interface SNPA
R1
10 R1 Fa1/0 cc01.0a00.0000
R2
10 R2 Fa2/0 cc02.0a02.0000
R3
--
IS-IS paths to level-2 routers
System Id
Metric Next-Hop Interface SNPA
R3
--
R4
10 R4 Fa0/0 cc04.0a07.0000
R3#sho ip route isis
1.0.0.0/24 is
subnetted, 1 subnets
i L1 1.1.1.0
[115/20] via 10.1.13.1, FastEthernet1/0
2.0.0.0/24 is
subnetted, 1 subnets
i L1 2.2.2.0
[115/20] via 10.1.23.2, FastEthernet2/0
4.0.0.0/24 is
subnetted, 1 subnets
i L2 4.4.4.0
[115/20] via 10.1.34.4, FastEthernet0/0
5.0.0.0/24 is
subnetted, 1 subnets
i L2 5.5.5.0
[115/30] via 10.1.34.4, FastEthernet0/0
6.0.0.0/24 is
subnetted, 1 subnets
i L2 6.6.6.0
[115/30] via 10.1.34.4, FastEthernet0/0
10.0.0.0/24 is
subnetted, 5 subnets
i L2 10.1.46.0
[115/20] via 10.1.34.4, FastEthernet0/0
i L2 10.1.45.0
[115/20] via 10.1.34.4, FastEthernet0/0
R4#sho isis topology
IS-IS paths to level-1 routers
System Id
Metric Next-Hop Interface SNPA
R4
--
R5
10 R5 Fa1/0 cc05.0a09.0000
R6
10 R6 Fa2/0 cc06.0a0b.0000
IS-IS paths to level-2 routers
System Id
Metric Next-Hop Interface SNPA
R3
10 R3 Fa0/0 cc03.0a04.0000
R4
--
R4#sh ip route isis
1.0.0.0/24 is
subnetted, 1 subnets
i L2 1.1.1.0
[115/30] via 10.1.34.3, FastEthernet0/0
2.0.0.0/24 is
subnetted, 1 subnets
i L2 2.2.2.0
[115/30] via 10.1.34.3, FastEthernet0/0
3.0.0.0/24 is
subnetted, 1 subnets
i L2 3.3.3.0
[115/20] via 10.1.34.3, FastEthernet0/0
5.0.0.0/24 is
subnetted, 1 subnets
i L1 5.5.5.0
[115/20] via 10.1.45.5, FastEthernet1/0
6.0.0.0/24 is
subnetted, 1 subnets
i L1 6.6.6.0
[115/20] via 10.1.46.6, FastEthernet2/0
10.0.0.0/24 is
subnetted, 5 subnets
i L2 10.1.13.0 [115/20] via 10.1.34.3,
FastEthernet0/0
i L2 10.1.23.0
[115/20] via 10.1.34.3, FastEthernet0/0
R5#sho isis neighbors
System Id Type
Interface IP Address State Holdtime
Circuit Id
R4 L1 Fa0/0
10.1.45.4 UP 24
R5.02
R5#sho ip route isis
4.0.0.0/24 is
subnetted, 1 subnets
i L1 4.4.4.0
[115/20] via 10.1.45.4, FastEthernet0/0
6.0.0.0/24 is
subnetted, 1 subnets
i L1 6.6.6.0
[115/30] via 10.1.45.4, FastEthernet0/0
10.0.0.0/24 is
subnetted, 3 subnets
i L1 10.1.46.0
[115/20] via 10.1.45.4, FastEthernet0/0
i L1 10.1.34.0
[115/20] via 10.1.45.4, FastEthernet0/0
i*L1 0.0.0.0/0 [115/10] via 10.1.45.4, FastEthernet0/0
R6#sh ip route isis
4.0.0.0/24 is
subnetted, 1 subnets
i L1 4.4.4.0
[115/20] via 10.1.46.4, FastEthernet0/0
5.0.0.0/24 is
subnetted, 1 subnets
i L1 5.5.5.0
[115/30] via 10.1.46.4, FastEthernet0/0
10.0.0.0/24 is
subnetted, 3 subnets
i L1 10.1.45.0
[115/20] via 10.1.46.4, FastEthernet0/0
i L1 10.1.34.0
[115/20] via 10.1.46.4, FastEthernet0/0
i*L1 0.0.0.0/0 [115/10] via 10.1.46.4, FastEthernet0/0
R6#ping 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2
seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max =
20/32/44 ms
R1#ping 4.4.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2
seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max =
40/44/56 ms
R1#ping 5.5.5.5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 5.5.5.5, timeout is 2
seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max =
20/49/92 ms
R1#ping 6.6.6.6
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 6.6.6.6, timeout is 2
seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max =
48/62/72 ms
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