Huawei Quidway S6500 Series Operation Manual page 222

Operation Manual - Routing Protocol
Quidway S6500 Series Ethernet Switches
Perform the following configurations in IS-IS view.
Configuring to filter the routes received by IS-IS
Table 5-31 Configuring to filter the received routes
Configure to filter the received routes
Configure not to filter the received routes
Configuring to filter the distributed routes
Table 5-32 Configuring to filter the distributed routes
Configure to filter the routes distributed
by IS-IS
Configure not to filter the routes
distributed by IS-IS
By default, IS-IS will not filter the received and distributed routing information.
Protocol specifies the routing protocol sources for distributing routes, which can be
direct, static, rip, bgp, ospf, or ospf-ase.
Note:
The filter-policy import command only filters the ISIS routes received from the
neighbors, and routes that cannot pass the filter won't be added to the routing table.
The filter-policy export command only takes effect to the routes imported by the
import-route command. If you configure the switch with only the filter-policy
export command, but without configuring the import-route command to import
other external routes, then the filter-policy export command does not take effect.
If the filter-policy export command does not specify which route to be filtered, then
the all the routes imported by the import-route command will be filtered.
5.2.30 Setting the Preference of IS-IS Protocol
In a router on which several routing protocols are concurrently operating, there is an
issue of sharing and selecting the routing information among all the routing protocols.
The system sets a preference for each routing protocol. When various routing protocols
Operation
Operation
Huawei Technologies Proprietary
5-21
Chapter 5 Integrated IS-IS Configuration
Command
filter-policy acl-number import
undo filter-policy acl-number import
Command
filter-policy acl-number
[ protocol ]
undo filter-policy acl-number export
[ protocol ]
export