--- 1/draft-ietf-idr-flowspec-path-redirect-06.txt 2018-12-13 03:13:08.979435284 -0800 +++ 2/draft-ietf-idr-flowspec-path-redirect-07.txt 2018-12-13 03:13:09.007435955 -0800 @@ -1,21 +1,21 @@ IDR Working Group G. Van de Velde, Ed. Internet-Draft Nokia Intended status: Standards Track K. Patel -Expires: December 7, 2018 Arrcus +Expires: June 16, 2019 Arrcus Z. Li Huawei Technologies - June 5, 2018 + December 13, 2018 Flowspec Indirection-id Redirect - draft-ietf-idr-flowspec-path-redirect-06 + draft-ietf-idr-flowspec-path-redirect-07 Abstract This document defines a new extended community known as "FlowSpec Redirect to indirection-id Extended Community". This extended community triggers advanced redirection capabilities to flowspec clients. When activated, this flowspec extended community is used by a flowspec client to retrieve the corresponding next-hop and encoding information within a localised indirection-id mapping table. @@ -37,21 +37,21 @@ 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 December 7, 2018. + This Internet-Draft will expire on June 16, 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 @@ -373,23 +373,22 @@ possible from a semantics perspective to have multiple clashing redirect actions defined within a single flowspec rule. For best and consistant compatibility with legacy implementations, the redirect functionality as documented by RFC5575 MUST NOT be broken, and hence when a clash occurs, then RFC5575 based redirect MUST take priority. Additionally, if the "Redirect to indirection-id" does not result in a valid redirection, then the flowspec rule MUST be processed as if the "Redirect to indirection-id" community was not attached to the flowspec route. In addition the flowspec client MUST provide an - indication within the BGP routing table that the respective - "'Redirect to indirection-id" resulted in an invalid redirection - action. + indication that the respective "'Redirect to indirection-id" resulted + in an invalid redirection action. 7. Security Considerations A system using "Redirect to indirection-id" extended community can cause during the redirect mitigation of a DDoS attack overflow of traffic received by the mitigation infrastructure. 8. Acknowledgements This document received valuable comments and input from IDR working