In a Nokia router, an interface is a logical named entity. An interface is created by specifying an interface name under the config>router context. This is the global router configuration context where objects like static routes are defined. An IP interface name can be up to 32 alphanumeric characters, must start with a letter, and is case-sensitive; for example, the interface name ‟1.1.1.1” is not allowed, but ‟int-1.1.1.1” is allowed.
If the interface name already exists, the router changes the context to maintain that IP interface. If the interface name already exists within another service ID or is an IP interface defined within the configure router commands, an error occurs and the context does not change to that IP interface.
To create an interface, the following basic configuration tasks must be performed.
Assign a name to the interface.
Associate an IP address with the interface.
Associate the interface with a network interface or the system interface.
Configure appropriate routing protocols.
A system interface and network interface must be configured.