OSPF Extensions for Flow Specification

The information below is for an old version of the document
Document Type Expired Internet-Draft (ospf WG)
Authors Qiandeng Liang  , Jianjie You  , Nan Wu  , Peng Fan  , Keyur Patel  , Acee Lindem 
Last updated 2015-12-23 (latest revision 2015-06-21)
Replaces draft-liang-ospf-flowspec-extensions
Stream IETF
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Dissemination of the Traffic flow information was first introduced in the BGP protocol [RFC5575]. FlowSpec routes are used to distribute traffic filtering rules that are used to filter Denial-of-Service (DoS) attacks. For the networks that only deploy an IGP (Interior Gateway Protocol) (e.g., OSPF), it is required that the IGP is extended to distribute Flow Specification or FlowSpec routes. This document discusses the use cases for distributing flow specification (FlowSpec) routes using OSPF. Furthermore, this document defines a OSPF FlowSpec Opaque Link State Advertisement (LSA) encoding format that can be used to distribute FlowSpec routes, its validation procedures for imposing the filtering information on the routers, and a capability to indicate the support of FlowSpec functionality.


Qiandeng Liang (liuweihang@huawei.com)
Jianjie You (youjianjie@huawei.com)
Nan Wu (eric.wu@huawei.com)
Peng Fan (fanpeng@chinamobile.com)
Keyur Patel (keyupate@cisco.com)
Acee Lindem (acee@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)