Alcatel-Lucent 7750 SR - Page 632

Virtual Private LAN Services
Page 632 7750 SR OS Services Guide
interface
Syntax [no] interface ip-int-name
Context config>service>vpls
Description This command creates an IP interface.
address
Syntax address ip-address[/mask]> [netmask]
no address
Context config>service>vpls>interface
Description This command assigns an IP address, IP subnet, and broadcast address format to an IES IP router
interface. Only one IP address can be associated with an IP interface.
An IP address must be assigned to each IES IP interface. An IP address and a mask are used together
to create a local IP prefix. The defined IP prefix must be unique within the context of the routing
instance. It cannot overlap with other existing IP prefixes defined as local subnets on other IP
interfaces in the same routing context within the 7750 SR.
The local subnet that the address command defines must be part of the services address space within
the routing context using the config router service-prefix command. The default is to disallow the
complete address space to services. Once a portion of the address space is allocated as a service
prefix, that portion can be made unavailable for IP interfaces defined within the config router
interface CLI context for network core connectivity with the exclude option in the config router
service-prefix command.
The IP address for the interface can be entered in either CIDR (Classless Inter-Domain Routing) or
traditional dotted decimal notation. The show commands display CIDR notation and is stored in
configuration files.
By default, no IP address or subnet association exists on an IP interface until it is explicitly created.
Use the no form of this command to remove the IP address assignment from the IP interface. When
the no address command is entered, the interface becomes operationally down.
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.
Address Admin State Oper State
No address
up down
No address
down down
1.1.1.1
up up
1.1.1.1
down down