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Configuring IPv6 IS-IS route control
Before you configure IPv6 IS-IS route control, complete basic IPv6 IS-IS configuration.
To configure IPv6 IS-IS route control:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IS-IS view.
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
N/A
3.
Specify a preference for
IPv6 IS-IS routes.
ipv6 preference
{
route-policy
route-policy-name
|
preference
} *
By default, the default
setting is 15.
4.
Configure an IPv6 IS-IS
summary route.
ipv6 summary
ipv6-prefix prefix-length
[
avoid-feedback
|
generate_null0_route
|
[
level-1
|
level-1-2
|
level-2
] |
tag
tag
] *
By default, no IPv6 IS-IS
summary route is
configured.
5.
Generate an IPv6 IS-IS
default route.
ipv6 default-route-advertise
[ [
level-1
|
level-1-2
|
level-2
] |
route-policy
route-policy-name
] *
By default, no IPv6 default
route is generated.
6.
Configure IPv6 IS-IS to
filter redistributed routes.
ipv6 filter-policy
{
acl6-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
}
export
[
protocol
[
process-id
]
]
By default, IPv6 IS-IS does
not filter redistributed
routes.
This command is usually
used together with the
ipv6
import-route
command.
7.
Configure IPv6 IS-IS to
filter received routes.
ipv6 filter-policy
{
acl6-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
}
import
By default, IPv6 IS-IS does
not filter received routes.
8.
Configure IPv6 IS-IS to
redistribute routes from
another routing protocol.
ipv6 import-route
protocol
[
process-id
]
[
allow-ibgp
] [
cost
cost
| [
level-1
|
level-1-2
|
level-2
] |
route-policy
route-policy-name
|
tag
tag
] *
By default, IPv6 IS-IS does
not redistribute routes from
any other routing protocol.
9.
Configure the maximum
number of redistributed
Level 1/Level 2 IPv6
routes.
ipv6 import-route limit
number
The default setting depends
on the device model.
10.
Configure route
advertisement from Level-2
to Level-1.
ipv6 import-route isisv6 level-2 into level-1
[
filter-policy
{
acl6-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
} |
tag
tag
] *
By default, IPv6 IS-IS does
not advertise routes from
Level-2 to Level-1.
11.
Configure route
advertisement from Level-1
to Level-2.
ipv6 import-route isisv6 level-1 into level-2
[
filter-policy
{
acl6-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
} |
tag
tag
] *
By default, IPv6 IS-IS
advertises routes from
Level-1 to Level-2.
12.
Specify the maximum
number of ECMP routes for
load balancing.
ipv6 maximum load-balancing
number
The default setting depends
on the device model.