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Cisco IOS XR Getting Started Guide
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Chapter5 Configuring Additional Router Features
Configuring Software Entitlement
Configuring Software Entitlement
Beginning in Cisco IOS XR Software Release 3.5.0, certain software and hardware features are enabled
using software entitlement. Software entitlement is a system that consists of a license manager on a
Cisco IOS XR device that manages licenses for various software and hardware features. The license
manager parses and authenticates a license before accepting it. The software features on the router use
the license manager APIs to check out and release licenses. Licenses are stored in persistent storage on
the router.
All core routing features are available for use without any license. In Cisco IOS XR Software
Release 3.6.0, the following features must be enabled with licenses:
•Layer 3 VPN
•Modular services card bandwidth
•Cisco XR 12000 SIP-401 bandwidth
•Cisco XR 12000 SIP-501 bandwidth
•Cisco XR 12000 XIP-601 bandwidth
Refer to the Software Entitlement on Cisco IOS XR Software module in Cisco IOS XR System
Management Configuration Guide for more information on configuring software licenses.
Configuration Limiting
The Cisco IOS XR software places preset limits on the configurations you can apply to the running
configuration of a router. These limits ensure that the router has sufficient system resources (such as
RAM) for normal operations. Under most conditions, these preset limits are sufficient.
In some cases, for which a large number of configurations is required for a particular feature, it may be
necessary to override the preset configuration limits. This override can be done only if configurations
for another feature are low or unused. For example, if a router requires a large number of BGP
configurations and Multiprotocol Label Switching (MPLS) is not being used at all, then the BGP limits
can be increased to use the unused memory assigned to MPLS.
Caution Overriding the default configuration limits can result in a low-memory condition.
The following sections describe the limits you can configure, default and maximum values, and
commands for configuring and displaying the configuration limits:
•Static Route Configuration Limits, page 5-122
•IS-IS Configuration Limits, page 5-122
•OSPFv2 and v3 Configuration Limits, page 5-123
•BGP Configuration Limits, page 5-125
•Routing Policy Language Line and Policy Limits, page5-127
•Multicast Configuration Limits, page 5-129
•MPLS Configuration Limits, page 5-130