Cisco NCS 6000 Series

One IS-IS interface and address-family can specify only one link-group association. The default is for both
levels regardless of the current circuit-type. The link-group association can be specified for one level only if
configured.
Note
SUMMARY STEPS
1. configure
2. router isis instance-id
3. interface type interface-path-id
4. address-family ipv4 | ipv6 [ unicast ]
5. link-group link-group-name [ level {1 | 2 } ]
6. commit
7. show isis interface
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enters IS-IS configuration submode.
router isis instance-id
Example:
Step 2
RP/0/RP0/CPU0:router(config)# router isis purple
Enters interface configuration mode.
interface type interface-path-id
Example:
Step 3
RP/0/RP0/CPU0:router(config-isis)# interface
GigabitEthernet 0/1/0/3
Specifies the IPv6 address family and enters router address
family configuration mode.
address-family ipv4 | ipv6 [ unicast ]
Example:
Step 4
• This example specifies the unicast IPv4 address family.
RP/0/RP0/CPU0:router(config-isis)# address-family
ipv4 unicast
Specifies the link-group name and sets the tag at the level
specified.
link-group link-group-name [ level {1 | 2 } ]
Example:
Step 5
RP/0/RP0/CPU0:router(config-isis-if)#
)#address-family ipv4 unicast link-group access
level 1
commit
Step 6
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
251
Implementing IS-IS
Configure Link Group Interface