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The IPv6 address must be on the same subnet as other IS-IS neighbors, but the IP address does not
need to relate to the NET address.
6. Enable IS-IS on the IPv4 interface.
ROUTER ISIS mode
ip router isis [tag]
If you configure a tag variable, it must be the same as the tag variable assigned in step 1.
7. Enable IS-IS on the IPv6 interface.
ROUTER ISIS mode
ipv6 router isis [tag]
If you configure a tag variable, it must be the same as the tag variable assigned in step 1.
Example of Viewing IS-IS Configuration ( EXEC Privilege Mode)
Example of the show isis traffic Command
The default IS type is level-1-2. To change the IS type to Level 1 only or Level 2 only, use the is-type
command in ROUTER ISIS mode.
To view the IS-IS configuration, enter the show isis protocol command in EXEC Privilege mode or
the show config command in ROUTER ISIS mode.
Dell#show isis protocol
IS-IS Router: <Null Tag>
System Id: EEEE.EEEE.EEEE IS-Type: level-1-2
Manual area address(es):
47.0004.004d.0001
Routing for area address(es):
21.2223.2425.2627.2829.3031.3233
47.0004.004d.0001
Interfaces supported by IS-IS:
Vlan 2
GigabitEthernet 4/22
Loopback 0
Redistributing:
Distance: 115
Generate narrow metrics: level-1-2
Accept narrow metrics: level-1-2
Generate wide metrics: none
Accept wide metrics: none
Dell#
To view IS-IS protocol statistics, use the show isis traffic command in EXEC Privilege mode.
Dell#show isis traffic
IS-IS: Level-1 Hellos (sent/rcvd) : 4272/1538
IS-IS: Level-2 Hellos (sent/rcvd) : 4272/1538
IS-IS: PTP Hellos (sent/rcvd) : 0/0
IS-IS: Level-1 LSPs sourced (new/refresh) : 0/0
IS-IS: Level-2 LSPs sourced (new/refresh) : 0/0
IS-IS: Level-1 LSPs flooded (sent/rcvd) : 32/19
IS-IS: Level-2 LSPs flooded (sent/rcvd) : 32/17
IS-IS: Level-1 LSPs CSNPs (sent/rcvd) : 1538/0
IS-IS: Level-2 LSPs CSNPs (sent/rcvd) : 1534/0
IS-IS: Level-1 LSPs PSNPs (sent/rcvd) : 0/0
IS-IS: Level-2 LSPs PSNPs (sent/rcvd) : 0/0
494
Intermediate System to Intermediate System