1-23
z
Only active routes can be redistributed. You can use the
display ip routing-table
protocol
command to display route state information.
z
For how to configure the working mode, refer to the switch-mode configuration in
Device
Management Configuration
in the
System Volume
.
Configuring IS-IS Route Filtering
You can reference a configured ACL, IP prefix list or routing policy to filter routes calculated from the
received LSPs and the routes redistributed from other routing protocols.
Filtering routes calculated from received LSPs
IS-IS saves the LSPs received from neighbors in the LSDB, uses the SPF algorithm to calculate the
shortest path tree with itself as the root and installs the routes into the IS-IS routing table.
By reference a configured ACL, IP prefix list or routing policy, you can filter the calculated routes and
only the routes matching the filter can be added into the IS-IS routing table.
Follow these steps to filter routes calculated from received LSPs:
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter IS-IS view
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
––
Filter routes calculated
from received LSPs
filter-policy
{
acl-number
|
ip-prefix
ip-prefix-name | route-policy
route-policy-name
}
import
Required
No filtering is configured
by default.
Filtering redistributed routes
IS-IS can redistribute routes from other routing protocols or other IS-IS processes, add them into the
IS-IS routing table and advertise them in LSPs.
By reference a configured ACL, IP prefix list or routing policy, you can filter redistributed routes and only
the routes matching the filter can be added into the IS-IS routing table and advertised to neighbors.
Follow these steps to configure the filtering of redistributed routes:
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter IS-IS view
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
––
Configure the filtering of routes
redistributed from another
routing protocol or IS-IS
process
filter-policy
{
acl-number
|
ip-prefix
ip-prefix-name | route-policy
route-policy-name
}
export
[
protocol
[
process-id
] ]
Required
Not configured by
default
Summary of Contents for S7902E
Page 82: ...1 4 DeviceA interface tunnel 1 DeviceA Tunnel1 service loopback group 1 ...
Page 200: ...1 11 DeviceB display vlan dynamic No dynamic vlans exist ...
Page 598: ...ii ...
Page 1757: ...4 9 ...
Page 1770: ...6 4 ...
Page 2017: ...2 11 Figure 2 3 SFTP client interface ...
Page 2238: ...1 16 DeviceA cfd linktrace service instance 1 mep 1001 target mep 4002 ...
