Cisco Cisco IOS XR Software Release 4.2
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(VPNv4) and IPv6 (6VPE) VPN services using L2TPv3 encapsulation. This L2TPv3 packet is
encapsulated in an IPv4 delivery header and is carried across an IPv4 backbone. VPN prefixes are
advertised with BGP labels and resolved over L2TPv3 tunnels. This feature is supported only on the
Cisco XR 12000 Series Router.
encapsulated in an IPv4 delivery header and is carried across an IPv4 backbone. VPN prefixes are
advertised with BGP labels and resolved over L2TPv3 tunnels. This feature is supported only on the
Cisco XR 12000 Series Router.
For more information about new features provided on the Cisco XR 12000 Series Router for Cisco IOS XR
Software Release, 4.2.1 see the Software Features Introduced in Cisco IOS XR Software Release 4.2.1
section in this document.
Software Release, 4.2.1 see the Software Features Introduced in Cisco IOS XR Software Release 4.2.1
section in this document.
System Requirements
This section describes the system requirements for Cisco IOS XR Software Release 4.2.1 supported on the
Cisco XR 12000 Series Router.
Cisco XR 12000 Series Router.
•
Feature Set Table, on page 3
•
Memory Requirements, on page 6
•
Supported Hardware, on page 7
•
Software Compatibility, on page 12
•
Firmware Support, on page 16
The systems requirements include the following information:
Feature Set Table
Cisco IOS XR Software is packaged in feature sets (also called software images). Each feature set contains
a specific set of Cisco IOS XR Software Release 4.2.1 features.
a specific set of Cisco IOS XR Software Release 4.2.1 features.
lists the Cisco IOS XR Software feature
set matrix (PIE files) and associated filenames available for Cisco IOS XR Software Release 4.2.1 , supported
on the Cisco XR 12000 Series Router.
on the Cisco XR 12000 Series Router.
Table 1: Cisco IOS XR Software Release 4.2.1 PIE Files
Description
Filename
Feature Set
Composite Package
Contains the required core
packages, including OS, Admin,
Base, Forwarding, Routing, SNMP
Agent, and Alarm Correlation.
packages, including OS, Admin,
Base, Forwarding, Routing, SNMP
Agent, and Alarm Correlation.
c12k-mini-pie-4.2.1
Cisco IOS XR IP Unicast Routing
Core Bundle
Core Bundle
Release Notes for Cisco XR 12000 Series Router for Cisco IOS XR Software Release 4.2.1
OL-26857-01
3
Release Notes for Cisco XR 12000 Series Router for Cisco IOS XR Software Release
System Requirements