Alcatel-Lucent 7750 SR Manual page 1403

export
Syntax export policy-name [policy-name...]
no export
Context config>service>vprn>ospf
config>service>vprn>ospf3
Description This command associates export route policies to determine which routes are exported from the route
table to OSPF. Export polices are only in effect if OSPF is configured as an ASBR.
If no export policy is specified, non-OSPF routes are not exported from the routing table manager to
OSPF.
If multiple policy names are specified, the policies are evaluated in the order they are specified. The
first policy that matches is applied. If multiple export commands are issued, the last command entered
will override the previous command. A maximum of five policy names can be specified.
The no form of the command removes all policies from the configuration.
Default no export — No export route policies specified.
Parameters
policy-name — The export route policy name. Allowed values are any string up to 32 characters long
external-db-overflow
Syntax external-db-overflow limit interval
no external-db-overflow
Context config>service>vprn>ospf
config>service>vprn>ospf3
Description
This command enables limits on the number of non-default AS-external-LSA entries that can be
stored in the LSDB and specifies a wait timer before processing these after the limit is exceeded.
The limit value specifies the maximum number of non-default AS-external-LSA entries that can be
stored in the link-state database (LSDB). Placing a limit on the non-default AS-external-LSAs in the
LSDB protects the router from receiving an excessive number of external routes that consume
excessive memory or CPU resources. If the number of routes reach or exceed the limit, the table is in
an overflow state. When in an overflow state, the router will not originate any new AS-external-
LSAs. In fact, it withdraws all the self-originated non-default external LSAs.
The interval specifies the amount of time to wait after an overflow state before regenerating and
processing non-default AS-external-LSAs. The waiting period acts like a dampening period
preventing the router from continuously running Shortest Path First (SPF) calculations caused by the
excessive number of non-default AS-external LSAs.
The external-db-overflow must be set identically on all routers attached to any regular OSPF area.
OSPF stub areas and not-so-stubby areas (NSSAs) are excluded.
The no form of the command disables limiting the number of non-default AS-external-LSA entries.
7750 SR OS Services Guide
composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $,
spaces, etc.), the entire string must be enclosed within double quotes.
The specified name(s) must already be defined.
Virtual Private Routed Network Services
Page 1403