Framework for Ethernet VPN Designated Forwarder Election Extensibility
RFC 8584, “Framework for Ethernet VPN Designated Forwarder Election Extensibility”, is a Proposed Standard document published in April 2019 by J. Rabadan, S. Mohanty, A. Sajassi, J. Drake, K. Nagaraj, S. Sathappan. It updates RFC 7432. It has since been updated by RFC 9722, RFC 9785. The canonical text is published by the RFC Editor.
Abstract
An alternative to the default Designated Forwarder (DF) selection algorithm in Ethernet VPNs (EVPNs) is defined. The DF is the Provider Edge (PE) router responsible for sending Broadcast, Unknown Unicast, and Multicast (BUM) traffic to a multihomed Customer Edge (CE) device on a given VLAN on a particular Ethernet Segment (ES). In addition, the ability to influence the DF election result for a VLAN based on the state of the associated Attachment Circuit (AC) is specified. This document clarifies the DF election Finite State Machine in EVPN services. Therefore, it updates the EVPN specification (RFC 7432).
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8584 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 8583 Diameter Load Information Conveyance
- RFC 8585 Requirements for IPv6 Customer Edge Routers to Support IPv4-as-a- Service
- RFC 8582 Diameter Overload Rate Control
- RFC 8586 Loop Detection in Content Delivery Networks
- RFC 8581 Diameter Agent Overload and the Peer Overload Report
- RFC 8587 NFS Version 4.0 Trunking Update
- RFC 8580 Sieve Extension: File Carbon Copy
- RFC 8588 Personal Assertion Token Extension for Signature-based Handling of Asserted information using toKENs