PBB-EVPN PBB-EVPN基本原理 PBB-EVPN的基本组网 PBB-EVPN是一种基于MPLS和以太网技术的新一代二层VPN技术。在控制平面上PBB-EVPN技术可以使用BGP协议在各个PE设备间传递MAC地址信息,从而控制不同Site上的数据报文跨MPLS网络进行传输。 如图1-3774所示,PBB-EVPN网络结构和EVPN网络结构相似。PBB-EVPN与EVPN相比引入了...
PBB-EVPN部署指导 配置EVPN功能包括配置EVPN实例、BGP EVPN对等体关系、BGP EVPN路由反射器和接口的ESI值。 应用环境 如图14-788所示,本节介绍PBB-EVPN组网配置,配置PBB-EVPN功能之后,将可以实现不同二层网络间的互联: 在各个PE上配置PBB-EVPN实例; 配置PBB-EVPN的B-MAC地址; 配置用户侧接口和I-EVPN实例的绑...
本文档讨论了如何使用基于 EVPN [RFC7432] 和 PBB-EVPN [RFC7623] 的解决方案来满足 E-Tree 服务的功能要求,并对其过程和 BGP 属性进行了一些扩展。这种基于 PBB-EVPN 或 EVPN 的解决方案可以提供比[RFC7796]“虚拟专用局域网服务(VPLS)中的以太网树(E-Tree)支持”更有效地实现这些功能。这种效率是通过在入口...
set routing-instances PBB-EVPN-B-COMP protocols evpn control-word set routing-instances PBB-EVPN-B-COMP protocols evpn pbb-evpn-core set routing-instances PBB-EVPN-B-COMP protocols evpn extended-isid-list 100100 set routing-instances PBB-EVPN-B-COMP bridge-domains BR-B-100100 vlan-id 999 set...
This document describes how Ethernet Shortest Path Bridging MAC mode(802.1aq) can be combined with EVPN in a way that interworks with PBB-PEs as described in the PBB-EVPN solution in a way that permitsoperational isolation of each Ethern... ...
In general, techniques are described for reducing forwarding loops for layer (L2) traffic that traverses an EVPN or PBB-EVPN instance (EVI) by deterministically determining an access-facing logical interface to block from respective access-facing logical interfaces of PE devices that switch the L2 ...
In PBB-EVPN, the PE advertises a Root or Leaf-Indication along with each Backbone MAC (B-MAC) Advertisement route to indicate whether the associated B-MAC address corresponds to a Root or a Leaf site. Just like the EVPN case, the new E-Tree extended community defined inSection 7is adver...
PBB is defined by IEEE802.1ah, where MAC tunneling (MAC-in-MAC) is employed to improve service instance and MAC address scalability in Ethernet. Using PBB’s MAC-in-MAC encapsulation, PBB-EVPN separates customer MAC addresses (C-MACs) from backbone MAC addresses (B-MACs) spaces. In ...
从ASR 9000 6.0版开始,PBB-EVPN ESI格式更改为RFC 7432规范。这意味着ESI自动感应不能在PE 6.X和先前版本的PE之间工作。 下图显示了如何为版本6.X和较早版本生成默认ESI。 第1步:排除ESI故障 运行show evpn ethernet-segment detail以检查默认ESI是否与所有PE匹配。否则,...
PBB-EVPN customer MAC synchronization among all-active multi-homing PEsA method for assisting media access control (MAC) address learning is disclosed. The method includes receiving, at a first provider edge (PE) device, a data packet from a core network, the data packet identifying an Ethernet...