The Scalable Address Resolution Protocol (SARP) for Large Data Centers (RFC7586)
Original Publication Date: 2015-Jun-01
Included in the Prior Art Database: 2015-Jun-23
Internet Society Requests For Comment (RFCs)
Y. Nachum: AUTHOR [+4]
This document describes a proxy gateway technique, called the Scalable Address Resolution Protocol (SARP), which reduces switches' Filtering Database (FDB) size and ARP/Neighbor Discovery impact on network elements in an environment where hosts within one subnet (or VLAN) can spread over various access domains in data centers.
Independent Submission Y. Nachum Request for Comments: 7586 Category: Experimental L. Dunbar ISSN: 2070-1721 Huawei I. Yerushalmi T. Mizrahi Marvell June 2015
The Scalable Address Resolution Protocol (SARP) for Large Data Centers
This document introduces the Scalable Address Resolution Protocol (SARP), an architecture that uses proxy gateways to scale large data center networks. SARP is based on fast proxies that significantly reduce switches' Filtering Database (FDB) table sizes and reduce impact of ARP and Neighbor Discovery (ND) on network elements in an environment where hosts within one subnet (or VLAN) can spread over various locations. SARP is targeted for massive data centers with a significant number of Virtual Machines (VMs) that can move across various physical locations.
Independent Submissions Editor Note
This is an Experimental document; that experiment will end two years after the RFC is published. At that point, the RFC authors will attempt to determine how widely SARP has been implemented and used.
The IESG notes that the problems described in RFC 6820 can already be addressed through the simple combination of existing standardized or other published techniques including Layer 2 VPN (RFC 4664), proxy ARP (RFC 925), proxy Neighbor Discovery (RFC 4389), IGMP and MLD snooping (RFC 4541), and ARP mediation for IP interworking of Layer 2 VPNs (RFC 6575).
Nachum, et al. Experimental [Page 1]
RFC 7586 SARP June 2015
Status of This Memo
This document is not an Internet Standards Track specification; it is published for examination, experimental implementation, and evaluation.
This document defines an Experimental Protocol for the Internet community. This is a contribution to the RFC Series, independently of any other RFC stream. The RFC Editor has chosen to publish this doc...