Reference Guide

490 | Intermediate System to Intermediate System
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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.
Enter the
show isis protocol command in EXEC Privilege mode or the show config command in ROUTER
ISIS mode to view the IS-IS configuration.
3 Enter the interface configuration mode. Enter the keyword
interface followed by the type of interface and slot/port
information:
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by the slot/port information.
• For the Loopback interface on the RPM, enter the
keyword
loopback followed by a number from 0 to
16383.
• For a port channel, enter the keyword
port-channel
followed by a number from 1 to 255 for TeraScale and
ExaScale, 1 to 32 for EtherScale.
• For a SONET interface, enter the keyword
sonet
followed by slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port
information.
• For a VLAN, enter the keyword vlan followed by a
number from 1 to 4094.
E-Series ExaScale platforms support 4094 VLANs
with FTOS version 8.2.1.0 and later. Earlier
ExaScale supports 2094 VLANS.
interface interface CONFIGURATION
4 Enter an IPv4 Address.
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.
ip address ip-address
mask
INTERFACE
5 Enter an IPv6 Address.
ipv6 address : x:x:x:x::x
mask : prefix length 0-128
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.
ipv6 address
ipv6-address mask
INTERFACE
6 Enable IS-IS on the IPv4 interface. If you configure a tag
variable, it must be the same as the tag variable assigned in
step 1.
ip router isis [tag] ROUTER ISIS
7 Enable IS-IS on the IPv6 interface. If you configure a tag
variable, it must be the same as the tag variable assigned in
step 1.
ipv6 router isis [tag] ROUTER ISIS
Step Task Command Syntax Command Mode