Preface
From Release 6.1.2 onwards, Cisco introduces support for the 64-bit Linux-based IOS XR operating system.
Extensive feature parity is maintained between the 32-bit and 64-bit environments. Unless explicitly marked
otherwise, the contents of this document are applicable for both the environments. For more details on Cisco
IOS XR 64 bit, refer to the Release Notes for Cisco ASR 9000 Series Routers, Release 6.1.2 document.
This guide describes the Cisco ASR 9000 Series Router configurations. The preface for the L2VPN and
Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers contains these sections:
• Changes to This Document, on page xxv
• Obtaining Documentation and Submitting a Service Request, on page xxv
Changes to This Document
The following table lists the technical changes made to this document since it was first published.
Change SummaryDate
Initial release of this document.September 2017
Republished for Release 6.3.2.March 2018
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information,
see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco
technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x
xxv
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