Enter the keyword interface then the type of interface and slot/port information:
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port[/
subport] information.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information.
• For a Loopback interface, enter the keyword loopback then a number from 0 to 16383.
• For a port channel interface, enter the keywords port-channel then a number.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
4 Enter an IPv4 Address.
INTERFACE mode
ip address ip-address mask
Assign an IP address and mask to the interface.
The IP 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.
5 Enter an IPv6 Address.
INTERFACE mode
ipv6 address ipv6-address mask
• ipv6 address: x:x:x:x::x
• mask: The prefix length is from 0 to 128.
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.
Examples of the show isis Commands
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):
Intermediate System to Intermediate System 560
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