VPRN Service Configuration Commands
Page 610 7210 SAS M Services Guide
Interface Commands
interface
Syntax interface ip-int-name
no interface ip-int-name
Context config>service>vprn
Description This command creates a logical IP routing interface for a Virtual Private Routed Network (VPRN).
Once created, attributes like an IP address and service access point (SAP) can be associated with the
IP interface.
The interface command, under the context of services, is used to create and maintain IP routing
interfaces within VPRN service IDs. The interface command can be executed in the context of an
VPRN service ID. The IP interface created is associated with the service core network routing
instance and default routing table. The typical use for IP interfaces created in this manner is for
subscriber internet access.
Interface names are case sensitive and must be unique within the group of defined IP interfaces
defined for config router interface and config service vprn 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 interface names or the IP
addresses. Use unique IP address values and IP address names to maintain clarity. It could be unclear
to the user if the same IP address and IP address name values are used. Although not recommended,
duplicate interface names can exist in different router instances.
The available IP address space for local subnets and routes is controlled with the config router
service-prefix command. The service-prefix command administers the allowed subnets that can be
defined on service IP interfaces. It also controls the prefixes that may be learned or statically defined
with the service IP interface as the egress interface. This allows segmenting the IP address space into
config router and config service domains.
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.
By default, there are no default IP interface names defined within the system. All VPRN IP interfaces
must be explicitly defined. Interfaces are created in an enabled state.
The no form of this command removes IP the interface and all the associated configuration. The
interface must be administratively shutdown before issuing the no interface command.
For VPRN services, the IP interface must be shutdown before the SAP on that interface may be
removed. VPRN services do not have the shutdown command in the SAP CLI context. VPRN
service SAPs rely on the interface status to enable and disable them.
Parameters ip-int-name — Specifies the name of the IP interface. Interface names must be unique within the
group of defined IP interfaces for config router interface and config service vprn interface
commands. An interface name cannot be in the form of an IP address. Interface names can be
from 1 to 32 alphanumeric characters. If the string contains special characters (#, $, spaces, etc.),
the entire string must be enclosed within double quotes.
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