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Implementing IS-IS on Cisco IOS XR Software
How to Implement IS-IS on Cisco IOS XR Software
RC-283
Cisco IOS XR Routing Configuration Guide
OL-14356-01
Step 6
net network-entity-title
Example:
RP/0/RP0/CPU0:router(config-isis)# net
47.0004.004d.0001.0001.0c11.1110.00
Configures NETs for the routing instance.
• Specify a NET for each routing instance if you are
configuring multi-instance IS-IS. You can specify a
name for a NET and for an address.
• This example configures a router with area ID
47.0004.004d.0001 and system ID 0001.0c11.1110.00.
• To specify more than one area address, specify
additional NETs. Although the area address portion of
the NET differs, the system ID portion of the NET must
match exactly for all of the configured items.
Step 7
address-family ipv6 [unicast]
Example:
RP/0/RP0/CPU0:router(config-isis)#
address-family ipv6 unicast
Specifies the IPv6 address family and enters router address
family configuration mode.
• This example specifies the unicast IPv6 address family.
Step 8
single-topology
Example:
RP0/0/RP0/CPU0:router(config-isis-af)#
single-topology
(Optional) Configures the link topology for IPv4 when IPv6
is configured.
• The single-topology command is valid only in IPv6
submode. The command instructs IPv6 to use the single
topology rather than the default configuration of a
separate topology in the multitopology mode.
• See the “Single-Topology IPv6 Support” section on
page RC-271 for more information.
Step 9
exit
Example:
RP/0/RP0/CPU0:router(config-isis-af)# exit
Exits router address family configuration mode, and returns
the router to router configuration mode.
Step 10
interface type instance
Example:
RP/0/RP0/CPU0:router(config-isis)# interface
POS 0/1/0/3
Enters interface configuration mode.
Step 11
circuit-type {level-1 | level-1-2 |
level-2-only}
Example:
RP/0/RP0/CPU0:router(config-isis-if)#
circuit-type level-1-2
(Optional) Configures the type of adjacency.
• The default circuit type is the configured system type
(configured through the is-type command).
• Typically, the circuit type must be configured when the
router is configured as only level-1-2 and you want to
constrain an interface to form only level-1 or
level-2-only adjacencies.
Step 12
address-family {ipv4 | ipv6} [unicast |
multicast]
Example:
RP/0/RP0/CPU0:router(config-isis-if)#
address-family ipv6 unicast
Specifies the IPv4 or IPv6 address family, and enters
interface address family configuration mode.
• This example specifies the unicast IPv6 address family
on the interface.
Command or Action Purpose