Hi all, The BGP-based IP VPN technology has been used as an overlay routing protocol for data center network virtualization environments. However, in a hyperscale data center network virtualization environment with tens of thousands of virtual PEs, millions of VPNs and tens of millions of VPN routes, the BGP-based IP VPN technology will face significant scalability issues (e.g., the VPN route table capacity issue and the VPN neighbor capacity issue).
Assume two-level route reflector architecture is used, the scaling issue associated with the top-level route reflectors could be addressed by dividing all the VPNs supported by a data center into multiple route reflectors with each route reflector being preconfigured with a block of route targets associated with partial VPNs. However, the bottom-level router reflectors still have a scaling issue since they may have to maintain all the VPN routes within the whole data center. By learning from the message queue mechanisms (e.g., RabbitMQ and RocketMQ), those bottom-level route reflectors, referred to as route brokers in the following text, work as follows: they just need to maintain the route target membership information of their BGP peers and reflect VPN routes on demands without the requirement of maintaining VPN routes permanently.¶<https://datatracker.ietf.org/doc/html/draft-xu-idr-bgp-route-broker#section-2-2> Any comments are welcome! Best regards, Xiaohu 发件人: internet-dra...@ietf.org <internet-dra...@ietf.org> 日期: 星期二, 2023年8月1日 21:29 收件人: Shraddha Hegde <shrad...@juniper.net>, Srihari Sangli <ssan...@juniper.net>, Xiaohu Xu <xuxiaohu_i...@hotmail.com> 主题: New Version Notification for draft-xu-idr-bgp-route-broker-01.txt A new version of I-D, draft-xu-idr-bgp-route-broker-01.txt has been successfully submitted by Xiaohu Xu and posted to the IETF repository. Name: draft-xu-idr-bgp-route-broker Revision: 01 Title: BGP Route Broker for Hyperscale SDN Document date: 2023-08-01 Group: Individual Submission Pages: 6 URL: https://www.ietf.org/archive/id/draft-xu-idr-bgp-route-broker-01.txt Status: https://datatracker.ietf.org/doc/draft-xu-idr-bgp-route-broker/ Htmlized: https://datatracker.ietf.org/doc/html/draft-xu-idr-bgp-route-broker Diff: https://author-tools.ietf.org/iddiff?url2=draft-xu-idr-bgp-route-broker-01 Abstract: This document describes an optimized BGP route reflector mechanism, referred to as a BGP route broker, so as to use BGP-based IP VPN as an overlay routing protocol for hyperscale data center network virtualization environments, also known as Software-Defined Network (SDN) environments. The IETF Secretariat
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