Alcatel-Lucent 7450 ESS Series, Configuration Manual, Page: 24 / 540

Page 24 7450 ESS OS Router Configuration Guide
Creating an IP Address Range
An IP address range can be reserved for exclusive use for services by defining the
config>router>service-prefix command. When the service is configured, the IP address must be
in the range specified as a service prefix. If no service prefix command is configured, then no
limitation exists.
Addresses in the range of a service prefix can be allocated to a network port unless the exclusive
parameter is used. Then, the address range is exclusively reserved for services.
When defining a range that is a superset of a previously defined service prefix, the subset will be
replaced with the superset definition. For example, if a service prefix exists for 10.10.10.0/24, and
a new service prefix is configured as 10.10.0.0/16, then the old address (10.10.10.0/24) will be
replaced with the new address (10.10.0.0/16).
When defining a range that is a subset of a previously defined service prefix, the subset will
replace the existing superset, providing addresses used by services are not affected; for example, if
a service prefix exists for 10.10.0.0/16, and a new service prefix is configured as 10.10.10.0/24,
then the 10.10.0.0/16 entry will be removed, provided that no services are configured that use
10.10.x.x addresses other than 10.10.10.x.