draft-ietf-idr-last-as-reservation-02.txt   draft-ietf-idr-last-as-reservation-03.txt 
IDR J. Haas IDR J. Haas
Internet-Draft Juniper Networks Internet-Draft Juniper Networks
Intended status: Informational J. Mitchell Intended status: Informational J. Mitchell
Expires: August 10, 2014 Microsoft Corporation Expires: September 15, 2014 Microsoft Corporation
February 6, 2014 March 14, 2014
Reservation of Last Autonomous System (AS) Numbers Reservation of Last Autonomous System (AS) Numbers
draft-ietf-idr-last-as-reservation-02 draft-ietf-idr-last-as-reservation-03
Abstract Abstract
This document reserves two Autonomous System numbers (ASNs) at the This document reserves two Autonomous System numbers (ASNs) at the
end of the 16 bit and 32 bit ranges, described in this document as end of the 16 bit and 32 bit ranges, described in this document as
"Last ASNs" and provides guidance to implementers and operators on "Last ASNs" and provides guidance to implementers and operators on
their use. their use.
Status of This Memo Status of This Memo
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 10, 2014. This Internet-Draft will expire on September 15, 2014.
Copyright Notice Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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"16-bit Autonomous System Numbers" registry for the reasons described "16-bit Autonomous System Numbers" registry for the reasons described
in this document. in this document.
IANA has also reserved last Autonomous System number 4294967295 from IANA has also reserved last Autonomous System number 4294967295 from
the "32-bit Autonomous System Numbers" registry for the reasons the "32-bit Autonomous System Numbers" registry for the reasons
described in this document. described in this document.
This reservation has been documented in the IANA Autonomous System This reservation has been documented in the IANA Autonomous System
Numbers Registry [IANA.AS]. Numbers Registry [IANA.AS].
This reservation has also been documented in the IANA Special-Purpose
AS Numbers Registry as described by [I-D.housley-number-registries].
7. Security Considerations 7. Security Considerations
This document does not introduce any additional security concerns in This document does not introduce any additional security concerns in
regards to usage of Last ASNs. Although the BGP protocol is designed regards to usage of Last ASNs. Although the BGP protocol is designed
to allow usage of these Last ASNs, security issues related to BGP to allow usage of these Last ASNs, security issues related to BGP
implementation errors could be triggered by Last ASN usage. implementation errors could be triggered by Last ASN usage.
8. References 8. References
8.1. Normative References 8.1. Normative References
[I-D.housley-number-registries]
Housley, R., "Internet Numbers Registries", draft-housley-
number-registries-04 (work in progress), February 2014.
[IANA.AS] IANA, , "Autonomous System (AS) Numbers", February 2014, [IANA.AS] IANA, , "Autonomous System (AS) Numbers", February 2014,
<http://www.iana.org/assignments/as-numbers/>. <http://www.iana.org/assignments/as-numbers/>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC4271] Rekhter, Y., Li, T., and S. Hares, "A Border Gateway [RFC4271] Rekhter, Y., Li, T., and S. Hares, "A Border Gateway
Protocol 4 (BGP-4)", RFC 4271, January 2006. Protocol 4 (BGP-4)", RFC 4271, January 2006.
[RFC6793] Vohra, Q. and E. Chen, "BGP Support for Four-Octet [RFC6793] Vohra, Q. and E. Chen, "BGP Support for Four-Octet
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