Alcatel-Lucent 7750 SR Manual page 1390

Os services guide

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VPRN Service Configuration Commands

blackhole-aggregate

[no] blackhole-aggregate

config>service>vprn>ospf>area

config>service>vprn>ospf3>area

This command installs a low priority blackhole route for the entire aggregate. Exisiting routes that

make up the aggregate will have a higher priority and only the components of the range for which no

route exists are blackholed.

It is possible that when performing area aggregation, addresses may be included in the range for

which no actual route exists. This can cause routing loops. To avoid this problem configure the

blackhole aggregate option.

Use the no form of this command to remove this option.

blackhole-aggregate

[no] interface ip-int-name

config>service>vprn>ospf>area

config>service>vprn>ospf3>area

This command creates a context to configure an OSPF interface.

By default interfaces are not activated in any interior gateway protocol such as OSPF unless explicitly

The no form of the command deletes the OSPF interface configuration for this interface. The

shutdown command in the config>router>ospf>interface context can be used to disable an interface

without removing the configuration for the interface.

no interface — No OSPF interfaces are defined.

ip-int-name — The IP interface name. Interface names must be unique within the group of defined IP

interfaces for config router interface and config service vprn interface commands. An

interface name cannot be in the form of an IP address. Interface names can be any string up to 32

characters long composed of printable, 7-bit ASCII characters. If the string contains special

characters (#, $, spaces, etc.), the entire string must be enclosed within double quotes.

If the IP interface name does not exist or does not have an IP address configured an error

message will be returned.

If the IP interface exists in a different area it will be moved to this area.

7750 SR OS Services Guide