Configuring Ospf Route Summarization; Configuring Ospf Inbound Route Filtering; Configuring Abr Type3 Lsa Filtering - 3Com MSR 50 Series Configuration Manual

Configuring OSPF Route
Summarization
Configuring OSPF
Inbound Route Filtering
n
Configuring ABR Type3
LSA Filtering
OSPF route summarization includes:
Configure route summarization between OSPF areas on an ABR
■
Configure route summarization when redistributing routes into OSPF on an
■
ASBR
Follow these steps to configure route summarization between OSPF areas on an
ABR:
To do...
Enter system view
Enter OSPF view
Enter OSPF area view
Configure ABR route
summarization
Follow these steps to configure route summarization when redistributing routes
into OSPF on an ASBR:
To do...
Enter system view
Enter OSPF view
Configure ASBR route
summarization
Follow these steps to configure OSPF to filter received routes:
To do...
Enter system view
Enter OSPF view
Configure to filter
received routes
Since OSPF is a link state-based internal gateway protocol, routing information is
contained in LSAs. However, OSPF cannot filter LSAs. Using the filter-policy
import command is to filter routes computed by OSPF, and only routes not
filtered are added into the routing table.
Follow these steps to configure type 3 LSA filtering on an ABR:
Configuring OSPF Routing Information Control
Use the command...
system-view
ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
area area-id
abr-summary ip-address { mask |
mask-length } [ advertise |
not-advertise ] [ cost cost ]
Use the command...
system-view
ospf [ process-id | router-id
router-id | vpn-instance
instance-name ]*
asbr-summary ip-address { mask |
mask-length } [ tag tag |
not-advertise | tag tag-value |
cost cost ] *
Use the command...
system-view
ospf [ process-id | router-id
router-id | vpn-instance
instance-name ]*
filter-policy { acl-number |
ip-prefix ip-prefix-name | gateway
ip-prefix-name } import
943
Remarks
-
-
Required
Required
Available on an ABR only
Not configured by default
Remarks
-
-
Required
Not configured by
default
Remarks
-
-
Required
Not configured by default