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所在平台: Udemy |
课程主页: https://www.udemy.com/course/cisco-nexus-vpc-virtual-port-channel-training/
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**课程名称：Cisco Nexus vPC (Virtual Port Channel) 培训** **课程概述：** 本课程深入讲解 Cisco Nexus 交换机上的 vPC (Virtual Port Channel) 技术。vPC 是一种虚拟化技术，它将一对 Nexus 设备捆绑成一个逻辑上的单一二层节点，呈现给接入层设备或终端设备。vPC 属于多机箱 EtherChannel (MCEC) 技术家族。 通过 vPC，物理上连接到两台不同 Cisco Nexus 7000/5000/9000 系列设备的链路，可以被第三方设备（如交换机、服务器、防火墙、负载均衡器或任何支持链路聚合的设备）视为一个单一的端口通道。 vPC 是 Cisco Nexus 平台的一项专有功能。两台相同型号的交换机可以组成一个 vPC 对，并以此在两台交换机上共同与第三台交换机或服务器建立一个 EtherChannel（也称为链路聚合或端口通道）。该对等设备感知不到它实际连接了两台独立的交换机，它只需要支持静态链路聚合或 LACP (Link Aggregation Control Protocol)。 **核心概念：** * **vPC (Virtual Port Channel)：** 将两台 Nexus 交换机虚拟化为一个逻辑端口通道。 * **MCEC (MultiChassis EtherChannel) / MLAG (MultiChassis Link Aggregation)：** 指跨越多台设备进行链路捆绑的技术。vPC 是 Cisco Nexus 系列上 MCEC/MLAG 的一种实现。 * **设备兼容性：** 第三方设备只需支持链路聚合（静态或 LACP）。 * **优势：** 提供了冗余、负载均衡，并简化了网络设计，避免了 STP (Spanning Tree Protocol) 的阻塞端口问题。 * **与其他技术的对比：** 与 Cisco Catalyst 交换机上的 VSS (Virtual Switching System) 或基于 StackWise 的 MLAGs 进行对比。 **学习目标：** 学员将能够理解 vPC 的原理、工作机制，以及如何在 Nexus 网络环境中配置和管理 vPC，以实现高可用性和提升链路利用率。
vPC is a virtualization technology that presents paired or two Nexus devices as a unique Layer 2 logical node to the access layer devices or endpoints. vPC belongs to Multi chassis EtherChannel [MCEC] family of technology. A virtual port channel (vPC) allows links that are physically connected to two different Cisco Nexus 7000/5000/9000 Series devices to appear as a single port channel to a third device. The third device can be a switch, server, firewall, load balancer or any other networking device that supports link aggregation technology.VPC or Virtual Port Channel is a Cisco proprietary feature available on the Nexus platform. Two switches of the same model can be combined into a VPC pair, which can establish a single EtherChannel, also known as a link aggregate or a port channel, across both switches to a third switch or server. This peering device doesn't know that it is connected to two different switches, and it just needs to support link aggregation either statically or using Link Aggregation Control Protocol (LACP). MultiChassis EtherChannel (MCEC) or MultiChassis Link Aggregation (MLAG) terms refer to the technique of bundling links across more than 1 device. VPC is Cisco's implementation of MCEC/MLAG on the Nexus line of switches. Similarly, Cisco Catalyst switches support Virtual Switching System (VSS) or StackWise-based MLAGs.
