Cisco NCS 6000 Series Configuration Manual page 254

Customizing Routes for IS-IS
SUMMARY STEPS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
DETAILED STEPS
Command or Action
Step 1
configure
Step 2
router isis instance-id
Example:
RP/0/RP0/CPU0:router(config)# router isis isp
Step 3 set-overload-bit [ on-startup { delay | wait-for-bgp
}] [ level { 1 | 2 }]
Example:
RP/0/RP0/CPU0:router(config-isis)#
set-overload-bit
Step 4 address-family { ipv4 | ipv6 } [ unicast ]
Example:
RP/0/RP0/CPU0:router(config-isis)# address-family
ipv4 unicast
Step 5 default-information originate [ route-policy
route-policy-name ]
Example:
RP/0/RP0/CPU0:router(config-isis-af)#
default-information originate
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
232
configure
router isis instance-id
set-overload-bit [ on-startup { delay | wait-for-bgp }] [ level { 1 | 2 }]
address-family { ipv4 | ipv6 } [ unicast ]
default-information originate [ route-policy route-policy-name ]
redistribute isis instance [ level-1 | level-2 | level-1-2 ] [ metric metric ] [ metric-type { internal
| external }] [ policy policy-name ]
Do one of the following:
• summary-prefix address / prefix-length [ level { 1 | 2 }]
• summary-prefix ipv6-prefix / prefix-length [ level { 1 | 2 }]
maximum-paths route-number
distance weight [ address / prefix-length [ route-list-name ]]
attached-bit send { always-set | never-set }
commit
Purpose
Enables IS-IS routing for the specified routing process,
and places the router in router configuration mode.
• By default, all IS-IS instances are automatically
Level 1 and Level 2. You can change the level of
routing to be performed by a particular routing
instance by using the is-type command.
(Optional) Sets the overload bit.
The configured overload bit behavior does not
Note
apply to NSF restarts because the NSF restart
does not set the overload bit during restart.
Specifies the IPv4 or IPv6 address family, and enters router
address family configuration mode.
(Optional) Injects a default IPv4 or IPv6 route into an IS-IS
routing domain.
• The route-policy keyword and route-policy-name
argument specify the conditions under which the IPv4
or IPv6 default route is advertised.
Implementing IS-IS