149
Step
Command
Remarks
2.
Enter IS-IS IPv4 unicast
address family view.
a
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
b
cost-style
{
wide
|
wide-compatible
}
c
address-family ipv4
[
unicast
]
N/A
3.
Filter routes redistributed
from other routing protocols
or IS-IS processes.
filter-policy
{
ipv4-acl-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
}
export
[
protocol
[
process-id
] ]
By default, IS-IS route
filtering is not configured.
Configuring IS-IS route leaking
Perform this task to control route advertisement (route leaking) between Level-1 and Level-2.
You can configure IS-IS to advertise routes from Level-2 to Level-1, and to not advertise routes from
Level-1 to Level-2.
To configure IS-IS route leaking:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IS-IS IPv4 unicast
address family view.
a
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
b
cost-style
{
wide
|
wide-compatible
}
c
address-family ipv4
[
unicast
]
N/A
3.
Configure route leaking from
Level-1 to Level-2.
import-route isis level-1
into level-2
[
filter-policy
{
ipv4-acl-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
} |
tag
tag
] *
By default, IS-IS advertises
routes from Level-1 to
Level-2.
4.
Configure route leaking from
Level-2 to Level-1.
import-route isis level-2 into level-1
[
filter-policy
{
ipv4-acl-number
|
prefix-list
prefix-list-name
|
route-policy
route-policy-name
} |
tag
tag
] *
By default, IS-IS does not
advertise routes from
Level-2 to Level-1.
Advertising IS-IS link state information to BGP
After the device advertises IS-IS link state information to BGP, BGP can advertise the information for
intended applications. For more information about BGP LS, see "
To advertise IS-IS link state information to BGP:
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.
Advertise IS-IS link state
information to BGP.
distribute bgp-ls
[
instance-id id
]
[
level-1
|
level-2
]
By default, the device does not
advertise IS-IS link state
information to BGP.
Summary of Contents for HPE FlexNetwork 7500 series
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