The Tunnel Encapsulations OSPF Router Information
draft-ietf-ospf-encapsulation-cap-09
OSPF Working Group X. Xu, Ed.
Internet-Draft Huawei
Intended status: Standards Track B. Decraene, Ed.
Expires: April 12, 2018 Orange
R. Raszuk
Bloomberg LP
L. Contreras
Telefonica I+D
L. Jalil
Verizon
October 9, 2017
The Tunnel Encapsulations OSPF Router Information
draft-ietf-ospf-encapsulation-cap-09
Abstract
Networks use tunnels for a variety of reasons. A large variety of
tunnel types are defined and the tunnel encapsulator router needs to
select a type of tunnel which is supported by the tunnel decapsulator
router. This document defines how to advertise, in OSPF Router
Information Link State Advertisement (LSAs), the list of tunnel
encapsulations supported by the tunnel decapsulator.
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 RFC 2119 [RFC2119].
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 12, 2018.
Xu, et al. Expires April 12, 2018 [Page 1]
Internet-Draft Tunnel Encapsulations RI October 2017
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Tunnel Encapsulations TLV . . . . . . . . . . . . . . . . . . 3
4. Tunnel Sub-TLV . . . . . . . . . . . . . . . . . . . . . . . 3
5. Tunnel Parameter Sub-TLVs . . . . . . . . . . . . . . . . . . 4
5.1. Encapsulation Sub-TLV . . . . . . . . . . . . . . . . . . 5
5.2. Protocol Type Sub-TLV . . . . . . . . . . . . . . . . . . 5
5.3. Endpoint Sub-TLV . . . . . . . . . . . . . . . . . . . . 5
5.4. Color Sub-TLV . . . . . . . . . . . . . . . . . . . . . . 6
5.5. Load-Balancing Block Sub-TLV . . . . . . . . . . . . . . 6
5.6. IP QoS Field . . . . . . . . . . . . . . . . . . . . . . 6
5.7. UDP Destination Port . . . . . . . . . . . . . . . . . . 7
6. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
7.1. OSPF Router Information . . . . . . . . . . . . . . . . . 7
7.2. Tunnel Parameter Sub-TLVs Registry . . . . . . . . . . . 7
8. Security Considerations . . . . . . . . . . . . . . . . . . . 8
9. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 9
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 9
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 9
11.1. Normative References . . . . . . . . . . . . . . . . . . 9
11.2. Informative References . . . . . . . . . . . . . . . . . 10
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 10
1. Introduction
Networks use tunnels for a variety of reasons, such as:
o Partial deployment of IPv6 in IPv4 networks or IPv4 in IPv6
networks as described in [RFC5565], where IPvx tunnels are used
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