Internet DRAFT - draft-lamparter-homenet-isis-profile
draft-lamparter-homenet-isis-profile
Homenet Working Group D. Lamparter
Internet-Draft NetDEF
Intended status: Standards Track April 17, 2016
Expires: October 19, 2016
Homenet IS-IS Profile
draft-lamparter-homenet-isis-profile-02
Abstract
This (pointer) document describes the neccessary bits and pieces of
IS-IS that a homenet targeted implementation would need to implement.
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 October 19, 2016.
Copyright Notice
Copyright (c) 2016 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.
Table of Contents
Lamparter Expires October 19, 2016 [Page 1]
Internet-Draft Homenet IS-IS Profile April 2016
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 2
2. Required specifications . . . . . . . . . . . . . . . . . . . 2
3. Parameter choices . . . . . . . . . . . . . . . . . . . . . . 3
4. Optional additions for IPv4 operation . . . . . . . . . . . . 4
5. Security and Privacy Considerations . . . . . . . . . . . . . 4
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 4
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.1. Normative References . . . . . . . . . . . . . . . . . . 4
7.2. Informative References . . . . . . . . . . . . . . . . . 5
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 5
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 5
1. Introduction
Homenet, as seen by the IETF Homenet working group, operates as a set
of IPv6 routers performing source/destination based routing. Since
an arbitrary number of routers in an arbitrary dynamic topology is to
be supported, a dynamic routing protocol is needed. This document
outlines how to apply IS-IS for this.
1.1. Requirements Language
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].
2. Required specifications
The following (parts of) specifications MUST be implemented for a
homenet IS-IS router:
Parts of ISO 10589-2002: [IS-IS]
o Section 6.1, Level 1 Intermediate System
o Section 6.2, bullet a) - broadcast subnetworks
o Section 6, remainder (6.3 - 6.8.4)
o Section 7, Level 1 IS function only
* exclude Section 7.2.2 (replaced by wide metrics)
* exclude Section 7.2.9 (Level 2 interactions)
* exclude Section 7.2.10 (Partition repair)
Lamparter Expires October 19, 2016 [Page 2]
Internet-Draft Homenet IS-IS Profile April 2016
* exclude Section 7.4 (Forwarding process), replaced by IPv6
forwarder behavior
o Sections 8.2 and 8.4
o Section 9, excluding PDU types specific to Level 2 operation
o Sections 10.1 and 10.2
Generally speaking, a homenet IS-IS implementation needs to operate
in a network consisting purely of Level 1 Intermediate Systems.
The following updates to the IS-IS specification:
o [RFC5120], M-ISIS: Multitopology Routing
o [RFC5303], IS-IS 3-way Adjacency TLV
o [RFC5305], IS-IS Extensions for Traffic Engineering
* wide metrics and IP prefix encoding
* Sub-TLVs 3, 9, 10, 11, 18 not required
o [RFC5308], Routing IPv6 with IS-IS
o [I-D.liu-isis-auto-conf], IS-IS Autoconfiguration
o [I-D.baker-ipv6-isis-dst-src-routing], IS-IS IPv6 Source/
Destination Routing
o [I-D.lamparter-isis-p2mp], IS-IS Point to Multipoint operation
And, finally, IPv6 source/destination routing behavior as specified
in [I-D.ietf-rtgwg-dst-src-routing].
3. Parameter choices
Most configuration parameters are specified in
[I-D.liu-isis-auto-conf] as part of IS-IS autoconfiguration.
Homenet uses the following additional parameter choices:
o IPv6 is routed in M-ISIS topology with MTID #2.
o IPv4, if supported, is routed in the base topology (MTID #0).
Lamparter Expires October 19, 2016 [Page 3]
Internet-Draft Homenet IS-IS Profile April 2016
4. Optional additions for IPv4 operation
Supporting IPv4 for backwards compatibility requires implementation
of [RFC1195].
5. Security and Privacy Considerations
This document has no independent security or privacy concerns. Those
in the referenced documents apply.
6. Acknowledgements
Juliusz Chroboczek pointed out the need for this document.
7. References
7.1. Normative References
[I-D.baker-ipv6-isis-dst-src-routing]
Baker, F. and D. Lamparter, "IPv6 Source/Destination
Routing using IS-IS", draft-baker-ipv6-isis-dst-src-
routing-04 (work in progress), October 2015.
[I-D.franke-isis-over-ipv6]
Franke, C., "IS-IS over IPv6", draft-franke-isis-over-
ipv6-01 (work in progress), October 2015.
[I-D.ietf-rtgwg-dst-src-routing]
Lamparter, D. and A. Smirnov, "Destination/Source
Routing", draft-ietf-rtgwg-dst-src-routing-01 (work in
progress), March 2016.
[I-D.lamparter-isis-p2mp]
Franke, C., Lamparter, D., and C. Hopps, "IS-IS Point-to-
Multipoint operation", draft-lamparter-isis-p2mp-01 (work
in progress), October 2015.
[I-D.liu-isis-auto-conf]
Liu, B., Decraene, B., Farrer, I., Abrahamsson, M., and L.
Ginsberg, "ISIS Auto-Configuration", draft-liu-isis-auto-
conf-06 (work in progress), October 2015.
[IS-IS] ISO/IEC, "Intermediate System to Intermediate System
Intra-Domain Routing Exchange Protocol for use in
Conjunction with the Protocol for Providing the
Connectionless-mode Network Service (ISO 8473)", ISO/IEC
10589:2002, Second Edition, 2002.
Lamparter Expires October 19, 2016 [Page 4]
Internet-Draft Homenet IS-IS Profile April 2016
[RFC1195] Callon, R.W., "Use of OSI IS-IS for routing in TCP/IP and
dual environments", RFC 1195, DOI 10.17487/RFC1195,
December 1990, <http://www.rfc-editor.org/info/rfc1195>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC5120] Przygienda, T., Shen, N., and N. Sheth, "M-ISIS: Multi
Topology (MT) Routing in Intermediate System to
Intermediate Systems (IS-ISs)", RFC 5120, February 2008.
[RFC5303] Katz, D., Saluja, R., and D. Eastlake, "Three-Way
Handshake for IS-IS Point-to-Point Adjacencies", RFC 5303,
October 2008.
[RFC5305] Li, T. and H. Smit, "IS-IS Extensions for Traffic
Engineering", RFC 5305, DOI 10.17487/RFC5305, October
2008, <http://www.rfc-editor.org/info/rfc5305>.
[RFC5308] Hopps, C., "Routing IPv6 with IS-IS", RFC 5308, October
2008.
7.2. Informative References
[I-D.sarikaya-6man-sadr-overview]
Sarikaya, B. and M. Boucadair, "Source Address Dependent
Routing and Source Address Selection for IPv6 Hosts:
Problem Space Overview", draft-sarikaya-6man-sadr-
overview-09 (work in progress), January 2016.
Appendix A. Change Log
(to be removed)
-00: July 2015
-01: October 2015
-02: April 2016; removed isis-over-ipv6
Author's Address
David Lamparter
NetDEF
Leipzig 04229
Germany
Email: david@opensourcerouting.org
Lamparter Expires October 19, 2016 [Page 5]
Internet-Draft Homenet IS-IS Profile April 2016
Lamparter Expires October 19, 2016 [Page 6]
