Alcatel-Lucent 7750 SR Manual page 1254

VPRN Service Configuration Commands
secondary
Syntax secondary {ip-address/mask | ip-address netmask} [broadcast all-ones | host-ones] [igp-
inhibit]
no secondary {ip-address/mask | ip-address netmask}
Context config>service>vprn>interface
Description This command assigns an secondary IP address/IP subnet/broadcast address format to the interface.
Default
none
Parameters
ip-address — The IP address of the IP interface. The ip-address portion of the address command
mask — The subnet mask in dotted decimal notation. When the IP prefix is not specified in CIDR
netmask — Specifies a string of 0s and 1s that mask or screen out the network part of an IP address so
broadcast — The optional broadcast parameter overrides the default broadcast address used by the
all-ones — The all-ones keyword following the broadcast parameter specifies the broadcast address
host-ones — The host-ones keyword following the broadcast parameter specifies that the broadcast
igp-inhibit — The optional igp-inhibit parameter signals that the given secondary IP interface
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specifies the IP host address that will be used by the IP interface within the subnet. This address
must be unique within the subnet and specified in dotted decimal notation. Allowed values are IP
addresses in the range 1.0.0.0 – 223.255.255.255 (with support of /31 subnets).
notation, a space separates the ip-address from a traditional dotted decimal mask. The mask
parameter indicates the complete mask that will be used in a logical 'AND' function to derive the
local subnet of the IP address. Allowed values are dotted decimal addresses in the range
128.0.0.0 – 255.255.255.252. Note that a mask of 255.255.255.255 is reserved for system IP
addresses.
that only the host computer part of the address remains.
IP interface when sourcing IP broadcasts on the IP interface. If no broadcast format is specified
for the IP address, the default value is host-ones which indictates a subnet broadcast address. Use
this parameter to change the broadcast address to all-ones or revert back to a broadcast address of
host-ones.
The broadcast format on an IP interface can be specified when the IP address is assigned or
changed. This parameter does not affect the type of broadcasts that can be received by the IP
interface. A host sending either the local broadcast (all-ones) or the valid subnet broadcast
address (host-ones) will be received by the IP interface. (Default: host-ones)
used by the IP interface for this IP address will be 255.255.255.255, also known as the local
broadcast.
address used by the IP interface for this IP address will be the subnet broadcast address. This is
an IP address that corresponds to the local subnet described by the ip-address and the mask-
length or mask with all the host bits set to binary one. This is the default used by an IP interface.
The broadcast parameter within the address command does not have a negate feature, which is
usually used to revert a parameter to the default value. To change the broadcast type to host-
ones after being changed to all-ones, the address command must be executed with the
broadcast parameter defined.
should not be recognized as a local interface by the running IGP. For OSPF and IS-IS, this means
that the specified secondary IP interfaces will not be injected and used as passive interfaces and
7750 SR OS Services Guide