Global Routing Operations Working T. Manderson Group ICANN Internet-Draft June 21, 2010 Intended status: Standards Track Expires: December 23, 2010 MRT BGP routing information export format with geo-location Extensions draft-manderson-grow-geomrt-00.txt Abstract This document extends the Border Gateway Protocol (BGP) MRT export format for routing information with terrestrial coordinates. Status of this Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on December 23, 2010. Copyright Notice Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Manderson Expires December 23, 2010 [Page 1] Internet-Draft Geo-Location extensions in MRT June 2010 Table of Contents 1. Requirements notation . . . . . . . . . . . . . . . . . . . . 3 2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Geo-location aware MRT Routing Information Type . . . . . . . 5 4. TABLE_DUMP_v2+GEO Type . . . . . . . . . . . . . . . . . . . . 6 5. Implementation Note . . . . . . . . . . . . . . . . . . . . . 9 6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 10 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11 8. Security Considerations . . . . . . . . . . . . . . . . . . . 12 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9.1. Normative References . . . . . . . . . . . . . . . . . . . 13 9.2. Informative References . . . . . . . . . . . . . . . . . . 13 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 14 Manderson Expires December 23, 2010 [Page 2] Internet-Draft Geo-Location extensions in MRT June 2010 1. Requirements notation The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. Manderson Expires December 23, 2010 [Page 3] Internet-Draft Geo-Location extensions in MRT June 2010 2. Introduction Research is underway that analyzes the network behavior of routing protocol transactions from routing information base snapshots in relation to geographical coordinates. Specifically the BGP routing protocol is the subject of study and the analysis has been significantly aided by the availability and extension of the "MRT format" [I-D.ietf-grow-mrt] originally defined in the MRT Programmer's Guide [MRT PROG GUIDE]. This memo documents an extension to the "MRT format" [I-D.ietf-grow-mrt] and introduces an additional definition of a MRT Type field and related Subtype fields. Manderson Expires December 23, 2010 [Page 4] Internet-Draft Geo-Location extensions in MRT June 2010 3. Geo-location aware MRT Routing Information Type The following additional Type is defined for the TABLE_DUMP_v2+GEO format, which extends the TABLE_DUMP_V2 type. 65 (TBA) TABLE_DUMP_v2+GEO Manderson Expires December 23, 2010 [Page 5] Internet-Draft Geo-Location extensions in MRT June 2010 4. TABLE_DUMP_v2+GEO Type The TABLE_DUMP_v2+GEO Type updates the TABLE_DUMP_v2 Type to include Geo-location information in the form of WGS84 [WGS 84] formatted coordinates. The following subtypes as used with the TABLE_DUMP_V2 Type, are used in the TABLE_DUMP_v2+GEO Type and their formats have been augmented to include the WGS84 coordinates. 1 PEER_INDEX_TABLE 2 RIB_IPV4_UNICAST 3 RIB_IPV4_MULTICAST 4 RIB_IPV6_UNICAST 5 RIB_IPV6_MULTICAST 6 RIB_GENERIC The extended PEER_INDEX_TABLE MRT record provides the BGP ID of the collector, the latitude and longitude in WGS84 [WGS 84] format, an optional view name, and a list of indexed peers. The format and function of the Collector BGP ID, the View Name Length and View Name, Peer Count are as defined by the TABLE_DUMP_V2 MRT format [I-D.ietf-grow-mrt]. The Collector Latitude and Collector Longitude are the geographical coordinates of the collector in WGS84 [WGS 84] format. 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Collector BGP ID | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Collector Latitude | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Collector Longitude | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | View Name Length | View Name (variable) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer Count | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ The format of the peer entries is shown below. The PEER_INDEX_TABLE record contains Peer Count peer entries. Manderson Expires December 23, 2010 [Page 6] Internet-Draft Geo-Location extensions in MRT June 2010 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer Type | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer BGP ID | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer IP address (variable) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer AS (variable) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer Latitude | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer Longitude | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ The Peer Type, Peer BGP ID, Peer IP, Peer AS, Peer Latitude, and Peer Longitude fields are repeated as indicated by the Peer Count field. The position of the Peer in the PEER_INDEX_TABLE is used as an index in the subsequent TABLE_DUMP_V2+GEO MRT records. The index number begins with 0. The Peer Latitude and Peer Longitude are the geographical coordinates of the peer in WGS84 [WGS 84] format. The Peer Type field remains as defined in the TABLE_DUMP_V2 MRT format [I-D.ietf-grow-mrt]. The records which follow the PEER_INDEX_TABLE record constitute the RIB entries and their formats remain unchanged from TABLE_DUMP_V2+ GEO. That is the common format for the RIB_IPV4_UNICAST, RIB_IPV4_MULTICAST, RIB_IPV6_UNICAST, and RIB_IPV6_MULTICAST remains as defined for TABLE_DUMP_V2 and the header is shown below for informational purposes only. 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Sequence number | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Prefix Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Prefix (variable) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Entry Count | Manderson Expires December 23, 2010 [Page 7] Internet-Draft Geo-Location extensions in MRT June 2010 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Similarly the the RIB_GENERIC format is unchanged and is shown here: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Sequence number | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Address Family Identifier |Subsequent AFI | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Network Layer Reachability Information (variable) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Entry Count | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ The RIB entries that follow the RIB entry headers are also unchanged from MRT [I-D.ietf-grow-mrt]: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Peer Index | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Originated Time | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Attribute Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | BGP Attributes... (variable) +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Manderson Expires December 23, 2010 [Page 8] Internet-Draft Geo-Location extensions in MRT June 2010 5. Implementation Note In implementation of the formats above where a Collector has an assigned Latitude and Longitude but a Peer does not. It is currently recommended that the Collector's coordinates are replicated in the Peer's Latitude and Longitude. The inquiring researcher can then make the decision on the interpretation of the routes 'as seen' at those coordinates, or disregard any geographical information for the peer based on the comparison of the Collector and Peer coordinates. The TABLE_DUMP_v2+GEO format MUST not be used if the Collector's Latitude and Longitude have not been defined. Manderson Expires December 23, 2010 [Page 9] Internet-Draft Geo-Location extensions in MRT June 2010 6. Acknowledgements Thanks to Andrew Clark, Ernest Foo, and Dave Meyer for reviewing this document. This document describes a small portion of the research towards the the author's PhD. Manderson Expires December 23, 2010 [Page 10] Internet-Draft Geo-Location extensions in MRT June 2010 7. IANA Considerations This section requests the Internet Assigned Numbers Authority (IANA) register the Type code values and Subtype code values related to the TABLE_DUMP_v2+GEO type in the MRT namespaces, in accordance with BCP 26, RFC 5226 [RFC5226]. Manderson Expires December 23, 2010 [Page 11] Internet-Draft Geo-Location extensions in MRT June 2010 8. Security Considerations This extension to the "MRT format" [I-D.ietf-grow-mrt] defines fields that are of a descriptive nature and provide information that is useful in the analysis of routing systems. As such, the author believes that they do not constitute an additional security risk. Manderson Expires December 23, 2010 [Page 12] Internet-Draft Geo-Location extensions in MRT June 2010 9. References 9.1. Normative References [I-D.ietf-grow-mrt] Blunk, L., Karir, M., and C. Labovitz, "MRT routing information export format", draft-ietf-grow-mrt-11 (work in progress), March 2010. [RFC1058] Hedrick, C., "Routing Information Protocol", RFC 1058, June 1988. [RFC1195] Callon, R., "Use of OSI IS-IS for routing in TCP/IP and dual environments", RFC 1195, December 1990. [RFC2080] Malkin, G. and R. Minnear, "RIPng for IPv6", RFC 2080, January 1997. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328, April 1998. [RFC4271] Rekhter, Y., Li, T., and S. Hares, "A Border Gateway Protocol 4 (BGP-4)", RFC 4271, January 2006. [RFC4760] Bates, T., Chandra, R., Katz, D., and Y. Rekhter, "Multiprotocol Extensions for BGP-4", RFC 4760, January 2007. [RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008. [RFC5340] Coltun, R., Ferguson, D., Moy, J., and A. Lindem, "OSPF for IPv6", RFC 5340, July 2008. 9.2. Informative References [MRT PROG GUIDE] Labovitz, C., "MRT Programmer's Guide", November 1999, . [WGS 84] Geodesy and Geophysics Department, DoD., "World Geodetic System 1984", January 2000, . Manderson Expires December 23, 2010 [Page 13] Internet-Draft Geo-Location extensions in MRT June 2010 Author's Address Terry Manderson ICANN Email: terry.manderson@icann.org Manderson Expires December 23, 2010 [Page 14]