I-D Action: draft-nr-bess-evpn-mh-split-horizon-03.txt
internet-drafts@ietf.org Wed, 09 September 2020 09:53 UTC
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A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : EVPN Multi-Homing Extensions for Split Horizon Filtering Authors : Jorge Rabadan Kiran Nagaraj Wen Lin Ali Sajassi Filename : draft-nr-bess-evpn-mh-split-horizon-03.txt Pages : 15 Date : 2020-09-09 Abstract: Ethernet Virtual Private Network (EVPN) is commonly used along with Network Virtualization Overlay (NVO) tunnels. The EVPN multi-homing procedures may be different depending on the NVO tunnel type used in the EVPN Broadcast Domain. In particular, there are two multi-homing Split Horizon procedures to avoid looped frames on the multi-homed CE: ESI Label based and Local Bias. ESI Label based Split Horizon is used for MPLSoX tunnels, E.g., MPLSoUDP, whereas Local Bias is used for others, E.g., VXLAN tunnels. The current specifications do not allow the operator to decide which Split Horizon procedure to use for tunnel encapsulations that could support both. Examples of tunnels that may support both procedures are MPLSoGRE, MPLSoUDP, GENEVE or SRv6. This document extends the EVPN Multi-Homing procedures so that an operator can decide the Split Horizon procedure for a given NVO tunnel depending on their own requirements. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-nr-bess-evpn-mh-split-horizon/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-nr-bess-evpn-mh-split-horizon-03 https://datatracker.ietf.org/doc/html/draft-nr-bess-evpn-mh-split-horizon-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-nr-bess-evpn-mh-split-horizon-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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