Arista 7280R3 系列

Arista 7280R3 系列技术规格

Arista 7280R3 系列是一组专用 100/400G 固定配置 1RU 和 2RU 系统，设计用于最高性能环境，例如云数据中心、IP 存储、企业叶脊网络和数据中心互连及 IP 对等。

线速 L2 和 L3 转发与用于网络虚拟化、开放监视和网络分析、弹性的高级功能及具有确定性能的架构灵活性相结合。深度数据包缓冲区和大路由表支持互联网对等型应用程序且各种接口和密度选项提供部署灵活性。

所有 Arista 7280R3 系列均支持 FlexRoute™ 引擎，可提供扩展性以支持将互联网规模路由作为路由平台进行部署。Arista FlexRoute 和 EOS NetDB™ 功能不是芯片组本身的特性，而是Arista的创新和融合。7280R3K 系列支持一系列灵活的配置文件，可利用不同网络角色的通用资源，包括最多 2.5M 的 IP 路由。

7280R3 优势

• 基于标准的高密度 400G 和 100G 交换机非常适用于后续升级设计和高带宽需求（例如高性能存储或内容传输网络 (CDN)）。
• 固定外形的动态深度缓冲区造就了理想骨干交换机，这款理想交换机关注数据分析和 IP 存储等方面中的无损性能和 in-Cast 流量。
• 直接连接的 40G 和 50G 存储系统，实现高性能和可预测的延迟
• 使用 CloudVision^® 流式处理高级分析的网络状态
• 通过线速 VXLAN 路由实现下一代云爆发的网络范围的虚拟化平台
• 硬件辅助的 PTP 可以在基于以太网的网络之间实现更精确的计时解决方案，而无需在各自的计时网络上进行高昂的投资
• 独特的监视和服务开通功能 – LANZ、DANZ、AEM、IEEE 1588 PTP、ZTP、VM Tracer、VXLAN 和 eAPI
• L2 和 L3 综合特性集用于多供应商开放网络，无供应商锁定
• 加速 sFlow 和 IPFIX 用于网络鉴证
• 大规模 L2 和 L3 表资源支持在具有任何工作负载适用性的 L2 和 L3 大环境中灵活部署
• NEBS 合规性和交流电源设计用于服务提供商环境

Arista 7280R3 系列

400G 7280PR3 系列和 7280DR3 系列	400G 1RU 和 2RU 系统 具有 OSFP 或 QSFP-DD 的高密度 400G 端口，支持灵活的 100G、50G 和 400G 最多 384 个 50GbE 端口或 192 个 100G 端口 采用超深度和动态缓冲区，线速性能高达 19.2Tbps 采用 FlexRoute，高达 1.3M IPv4/v6 路由 采用 7280PR3K 系列和 FlexRoute，高达 2.5M IPv4/v6 路由 所有型号均可扩展加速 sFlow
7280CR3 系列	100G 1RU 和 2RU 系统，具有 QSFP100 光纤与电缆的端口组合选择 2RU 中多达 96 个 100G 端口，而 1RU 中多达 48 个端口 灵活的 10/25/40/50/100G 和 400G 接口组合 具有 16GB 缓冲区，线速性能高达 9.6Tbps 采用 FlexRoute，高达 1.3M IPv4/v6 路由 采用 7280CR3K 系列和 FlexRoute，高达 2.5M IPv4/v6 路由 所有型号均可扩展加速 sFlow

可扩展性：

每个 7280R3 系列系统通过可预测的线性扩展支持 2 层和 3 层数据中心设计，提供一组一致的特性。Arista 的 FlexRoute 引擎支持完整的互联网路由及各种 IP/MPLS/VXLAN 协议。

The Arista 7280R3A Modular Series are purpose built 100G and 400G systems built for the highest performance environments, and to meet the needs of the largest scale data centers and service providers. They deliver scalable L2 and L3 resources and high density with advanced features for network monitoring, precision timing and network virtualization to deliver scalable and deterministic network performance while simplifying designs and reducing Opex.

The modular 7280R3A system provides 14.4 Tbps of packet processing in an extremely compact and power efficient 4RU form factor providing flexibility to deploy a range of interface types. Line rate performance with up to 144 ports of 100G or 36 ports of 400G is combined with rich functionality for a wide range of open networking solutions including large scale layer 2 and layer 3 cloud designs, overlay networks, virtualized or traditional enterprise data center networks. Deep packet buffers and large routing tables allow for internet peering and secure data center interconnect applications and provide complete deployment flexibility.

Each 7280R3 modular system is configurable with SFP, QSFP and OSFP/QSFP-DD interfaces to support connectivity from 10G to 400G and supports dense 400G-ZR DWDM. Further options include large scale routing and policy resources and Arista TunnelSec for strong encryption at layer 2 or layer 3.

All elements of the 7280R3A modular are field replaceable, and optimized for simple maintenance, a broad range of network interfaces with a choice of industry standard interfaces allowing for easy transitions to the latest 100G/400G networks. Combined with Arista EOS the 7280R3A series deliver advanced features for high performance large scale layer 2 and layer 3 cloud designs, enterprise data centers and service provider networks.

Introducing the 7280R3 Modular Series

Arista R3 Series Family Datasheet

7280R3 Modular Series Technical Specifications

Arista 7280R3 Series Fixed Systems Comparisons

The Arista 7280R3 Series of fixed systems delivers a comprehensive selection of scale and connectivity options to suit a wide range of use cases.

Systems are available with SFP, QSFP and OSFP/QSFP-DD to support connectivity from 1G to 400G, further options include large scale routing and policy resources, Arista TunnelSec for strong encryption at layer 2 or layer 3, Synchronous Ethernet and support for dense 400G-ZR DWDM.

Introducing the 7280R3 Series

Arista R3 Series Family Datasheet

The following tables provide an overview of all Arista 7280R3 Series models grouped by interface type. For a complete catalog of Arista 7000 Series switch specifications click here.

7280R3 400G Systems Specifications

7280R3 100G/400G Systems Specifications

7280R3 25G/100G Systems Specifications

1-400G Wire-speed Encryption

Deploying high performance, scalable bulk data encryption cost effectively is a major challenge for cloud data centers, enterprises and service providers. Arista 7280R3M, 7280R3AM and 7280R3AK Series platforms provide wire speed AES-256-GCM strong encryption for mixed speeds from 1G to 400G offering comprehensive choices for secure connectivity within facilities and over the wide area at an efficient cost point.

All 7280R3M, R3AM and R3AK systems provide standards-based IEEE 802.1AE MACsec for line-rate frame encryption and authentication. This ensures confidentiality as well as providing anti-replay protection and therefore confidence in the integrity of encrypted traffic.

Arista TunnelSec provides advanced encryption and is available on 7280R3AM and R3AK systems. TunnelSec is a standards-based approach to increasing the performance and utility of strong encryption for modern networks. TunnelSec adds support for IPsec and VXLANsec in addition to MACsec. IPsec and VXLANsec both enable the construction of encrypted IP tunnels that traverse multiple unencrypted hops between endpoints. IPsec operates router-to-router, while VXLANsec provides VTEP level integration for simple deployment of encrypted overlays. Both IPsec and VXLANsec provide a solution to line-rate strong encryption across third party infrastructure for WAN or DCI deployments.

MACsec, IPsec and VXLANsec solutions leverage AES-256-GCM for strong bulk encryption and operate at full line rate. The flexibility provided by offering encryption at different network layers enables a broad range of deployments and removes the need for additional encryption devices while providing orders of magnitude improvements in latency and throughput when compared to traditional appliances.

7280R3 400G Systems Specifications

7280R3 100G/400G Systems Specifications

7280R3 25G/100G Systems Specifications

^*SyncE is a roadmap feature

Scalability:

Each 7280R3/R3A Series system delivers a consistent set of features supporting layer 2 and layer 3 data center designs with predictable and linear scaling. Arista's FlexRoute Engine enables full Internet routing coupled with support for a variety of IP/MPLS/VXLAN protocols.

¹ Undimensional scaling maxima with currently available MDB profiles. Available resources depend on user configuration.

Product Overview

• .7280R3 Quick Look
• .7280R3 Datasheet
• .7280R3A Datasheet
• .7280R3A Quick Look
• .7280R3A Modular Datasheet
• .7280R3A Modular Quick Look
• .Arista 7280R3 Switch Architecture White Paper
• .R3 Innovations White Paper

Encryption Platforms

• .7280R3A Datasheet
• .7280R3A Modular Datasheet
• .7280R3 Encryption Datasheet

Data Center Networking with EVPN

• .Multi-Tenant Multicast Services
• .Line-Rate Encryption with Arista’s TunnelSec
• .EVPN Gateway for Hierarchical Multi-domain EVPN and DCI
• .Multihoming Models for Resiliency
• .VXLAN: Scaling Data Center Designs

Literature

• .FlexRoute
• .Arista EOS Precision Data Analysis with DANZ
• .IP Storage Next Gen Platforms White Paper
• .Routing Architecture Transformations & Use cases
• .VXLAN: Scaling Data Center Designs
• .Universal Cloud Network
• .Big Buffers for Big Data Applications
• .100G Transceivers and Cables: Q&A
• .EANTC 2020 EVPN and SR Interoperability Report
• .Leviton - 400G cabling
• .Fixed Configuration Switches Visio Stencils