Alcatel-Lucent 7450 Configuration Manual page 164

Router Interface Commands
Router Interface Commands
interface
Syntax [no] interface ip-int-name [unnumbered-mpls-tp]
[no] interface ip-int-name gmpls-loopback
Context config>router
Description
This command creates a logical IP routing or unnumbered MPLS-TP interface. Once created,
attributes like IP address, port, or system can be associated with the IP interface.
Interface names are case-sensitive and must be unique within the group of IP interfaces defined for
config router interface and config service ies interface. Interface names must not be in the dotted
decimal notation of an IP address.; for example, the name "1.1.1.1" is not allowed, but "int-1.1.1.1"
is allowed. Show commands for router interfaces use either the interface names or the IP addresses.
Ambiguity can exist if an IP address is used as an IP address and an interface name. Duplicate
interface names can exist in different router instances, although this is not recommended because it is
confusing.
When a new name is entered, a new logical router interface is created. When an existing interface
name is entered, the user enters the router interface context for editing and configuration.
Although not a keyword, the ip-int-name "system" is associated with the network entity (such as a
specific 7450 ESS), not a specific interface. The system interface is also referred to as the loopback
address.
An unnumbered MPLS-TP interface is a special type of interface that is only intended for MPLS-TP
LSPs. IP routing protocols are blocked on interfaces of this type. If an interface is configured as
unnumbered-mpls-tp, then it can only be associated with an Ethernet port or VLAN, using the port
command, then either a unicast, multicast, or broadcast remote MAC address may be configured.
Only static ARP is supported.
A GMPLS loopback interface is a special type of loopback interface that is used as the IP interface
for a GMPLS IP Control Channel (IPCC). RSVP and LMP packets associated with GMPLS are
associated with this loopback interface. All other IP protocols are blocked on this interface. One
gmpls-loopback interface is required for each GMPLS peer node.
The no form of the command removes the IP interface and all the associated configurations. The
interface must be administratively shut down before issuing the no interface command.
Default No interfaces or names are defined within the system.
Parameters ip-int-name — The name of the IP interface. Interface names must be unique within the group of
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defined IP interfaces for config router interface and config service ies interface commands.
An interface name cannot be in the form of an IP address. If the string contains special characters
(#, $, spaces, etc.), the entire string must be enclosed within double quotes.
Values 1 — 32 alphanumeric characters.
7450 ESS Router Configuration Guide