Alcatel-Lucent 7750 SR Manual page 1244

Os services guide

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Table of Contents

VPRN Service Configuration Commands

The operational state is a read-only variable and the only controlling variables are the address and

admin states. The address and admin states are independent and can be set independently. If an

interface is in an adminstratively up state and an address is assigned, it becomes operationally up and

the protocol interfaces and the MPLS LSPs associated with that IP interface will be reinitialized.

ip-address — The IP address of the IP interface. The ip-address portion of the address command

/ — The forward slash is a parameter delimiter and separates the ip-address portion of the IP address

mask-length — The subnet mask length when the IP prefix is specified in CIDR notation. When the

mask — The subnet mask in dotted decimal notation. When the IP prefix is not specified in CIDR

broadcast — The optional broadcast parameter overrides the default broadcast address used by the

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).

from the mask that defines the scope of the local subnet. No spaces are allowed between the ip-

address, the "/" and the mask-length parameter. If a forward slash is not immediately following

the ip-address, a dotted decimal mask must follow the prefix.

IP prefix is specified in CIDR notation, a forward slash (/) separates the ip-address from the

mask-length parameter. The mask length parameter indicates the number of bits used for the

network portion of the IP address; the remainder of the IP address is used to determine the host

portion of the IP address. Allowed values are integers in the range 0 – 30. Note that a mask length

of 32 is reserved for system IP addresses.

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

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

The broadcast format on an IP interface can be specified when the IP address is assigned or

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.

7750 SR OS Services Guide