Configure Ospfv3 Area External-Filter - Extreme Networks ExtremeWare XOS Command Reference Manual

OSPFv3 Commands

configure ospfv3 area external-filter

configure ospfv3 {domain <domainName>} area <area-identifier> external-
filter [<policy-map> |none]
Description
Configures an external filter policy.
Syntax Description
domainName
area-identifier
policy-map
none
Default
N/A.
Usage Guidelines
For switches configured to support multiple OSPFv3 areas (an ABR function), a policy can be applied to
an OSPFv3 area that filters a set of OSPFv3 external routes from being advertised into that area, in other
words, filtering some of the inbound AS-external-LSAs.
OPSFv3 routers that do not have enough memory to hold the entire AS-external-LSAa should configure
an external area filter to drop part of the external-LSAs. Configuring this policy will enable routers with
limited resources to be put into an OSPFv3 network.
Using the none mode specifies that no external filter is applied.
Policy files for this command will only recognize the following policy attributes:
Match attributes
●
nlri <IPv6-address>/<mask-len>
■
Action (set) attributes
●
permit
■
deny
■
Any other policy attribute will not be recognized and will be ignored.
The following is an example of an external area policy file:
entry one {
if match any{
nlri 2001:db8:3e5c::/48;
nlri 2001:db8:2146:2341::/64;
1362
Specifies an OSPFv3 domain. OSPF-Default is the only one currently
supported.
Specifies the OSPFv3 target area.
Specifies a policy.
Specifies not to apply an external filter (removes the existing policy, if any).
ExtremeWare XOS 11.3 Command Reference