EVPN blackhole community extention for Blackholing
draft-gao-bess-evpn-blackhole-00

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Last updated 2018-07-02
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Network Working Group                                             Y. Gao
Internet-Draft                                                   H. Wang
Intended status: Standards Track                     Huawei Technologies
Expires: January 3, 2019                                   July 02, 2018

           EVPN blackhole community extention for Blackholing
                    draft-gao-bess-evpn-blackhole-00

Abstract

   Ethernet Virtual Private Networks (EVPN) is becoming the de-facto
   standard-based control plane solution for Data Center and layer-2
   Service Provider applications.The risk of hacking and DDos attacks
   within the EVPN network is general common concern.Blackhole mac is a
   method used to block hacking or DDos attacks, The network device
   discard the packets where the source or destionation match the
   blackhole mac.Normally blackhole mac is mannually configured on the
   networkdevic,Configure blackhole mac is complex and error-prone task
   for network operators.This document introduces a blackhole community
   extension for evpn mac route to distribute the blackhole mac in the
   EVPN networks.The evpn mac route with blackhole community allows the
   bgp speaker to notify the recipients the specific mac is a blackhole
   mac.

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 .

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
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   This Internet-Draft will expire on January 3, 2019.

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Internet-Draft      draft-gao-bess-evpn-blackhole-00           July 2018

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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Blackhole Extended Community Attribute  . . . . . . . . . . .   3
   3.  Control Plane Processing  . . . . . . . . . . . . . . . . . .   3
   4.  Data Packets Processing . . . . . . . . . . . . . . . . . . .   3
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   4
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   Hacking attacks are a serious threat to the network infrastructure.In
   order to prevent a hacker from using a MAC address to attack a user
   device or network, the MAC address of an untrusted user is configured
   as blackhole mac on the network device, The network device directly
   discards the received packets where the source or destination MAC
   address is the blackhole MAC address.

   DDoS attacks targeting a certain mac may cause congestion of links,In
   order to block DDoS attacks, the mac being attacked could be
   congfigured as blackhole mac on the network device, The network
   device directly discards the received packets where the destination
   MAC address is the blackhole MAC address.

   Normally blackhole mac address entrys are manually configured on the
   device.  After blackhole mac entrys are configured, the device
   discards packets from or destined for the blackhole mac address.
   Configure blackhole mac is complex and error-prone task for network
   operators.  Therefore a well-known BGP community for blackholing
   based on evpn route is defined for operational ease.

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