Distributed Denial-of-Service Open Threat Signaling (DOTS) Signal Channel Specification
draft-ietf-dots-signal-channel-25
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Active Internet-Draft (dots WG)
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2018-10-16
(latest revision 2018-09-06)
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draft-reddy-dots-signal-channel
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IETF
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Intended RFC status |
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Proposed Standard
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plain text
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html
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WG state
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Submitted to IESG for Publication
(wg milestone:
Aug 2018 - Signal channel docum...
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Document shepherd |
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Liang Xia
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Shepherd write-up |
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Show
(last changed 2018-09-19)
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IESG state |
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AD Evaluation
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Benjamin Kaduk
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Send notices to |
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Liang Xia <frank.xialiang@huawei.com>
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DOTS T. Reddy, Ed.
Internet-Draft McAfee
Intended status: Standards Track M. Boucadair, Ed.
Expires: March 9, 2019 Orange
P. Patil
Cisco
A. Mortensen
Arbor Networks, Inc.
N. Teague
Verisign, Inc.
September 5, 2018
Distributed Denial-of-Service Open Threat Signaling (DOTS) Signal
Channel Specification
draft-ietf-dots-signal-channel-25
Abstract
This document specifies the DOTS signal channel, a protocol for
signaling the need for protection against Distributed Denial-of-
Service (DDoS) attacks to a server capable of enabling network
traffic mitigation on behalf of the requesting client.
A companion document defines the DOTS data channel, a separate
reliable communication layer for DOTS management and configuration
purposes.
Editorial Note (To be removed by RFC Editor)
Please update these statements within the document with the RFC
number to be assigned to this document:
o "This version of this YANG module is part of RFC XXXX;"
o "RFC XXXX: Distributed Denial-of-Service Open Threat Signaling
(DOTS) Signal Channel Specification";
o "| [RFCXXXX] |"
o reference: RFC XXXX
Please update TBD statements with the port number to be assigned to
DOTS Signal Channel Protocol.
Also, please update the "revision" date of the YANG module.
Reddy, et al. Expires March 9, 2019 [Page 1]
Internet-Draft DOTS Signal Channel Protocol September 2018
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 https://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 March 9, 2019.
Copyright Notice
Copyright (c) 2018 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
(https://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
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Design Overview . . . . . . . . . . . . . . . . . . . . . . . 6
4. DOTS Signal Channel: Messages & Behaviors . . . . . . . . . . 8
4.1. DOTS Server(s) Discovery . . . . . . . . . . . . . . . . 8
4.2. CoAP URIs . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3. Happy Eyeballs for DOTS Signal Channel . . . . . . . . . 9
4.4. DOTS Mitigation Methods . . . . . . . . . . . . . . . . . 11
4.4.1. Request Mitigation . . . . . . . . . . . . . . . . . 11
4.4.2. Retrieve Information Related to a Mitigation . . . . 26
4.4.2.1. DOTS Servers Sending Mitigation Status . . . . . 30
4.4.2.2. DOTS Clients Polling for Mitigation Status . . . 33
4.4.3. Efficacy Update from DOTS Clients . . . . . . . . . . 34
4.4.4. Withdraw a Mitigation . . . . . . . . . . . . . . . . 36
Reddy, et al. Expires March 9, 2019 [Page 2]
Internet-Draft DOTS Signal Channel Protocol September 2018
4.5. DOTS Signal Channel Session Configuration . . . . . . . . 37
4.5.1. Discover Configuration Parameters . . . . . . . . . . 39
4.5.2. Convey DOTS Signal Channel Session Configuration . . 43
4.5.3. Configuration Freshness and Notifications . . . . . . 48
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