Arista 7280R3 Series

Arista 7280R3 Series Technical Specifications

The Arista 7280R3 Series is a family of purpose-built fixed and modular 100/400G systems designed for the highest performance environments including Cloud data center, Content Delivery, Service Provider, IP storage, Enterprise leaf and spine networks, Data Center Interconnect and IP Peering.

Wire speed L2 and L3 forwarding are combined with strong encryption and advanced features for network virtualization, open monitoring and network analysis, resiliency and architectural flexibility with deterministic performance. Deep packet buffers and large routing tables allow for Internet peering applications and the broad range of interfaces and density choice provides deployment flexibility.

All Arista 7280R3 Series support FlexRoute™ engines providing the scalability to support Internet scale routing. Arista FlexRoute along with EOS NetDB™ enables innovations and convergence not natively available in merchant chipsets. The 7280R3K Series supports a series of flexible profiles that leverage common resources for different network roles including up to 5M IP routes.

7280R3 Benefits

• Standards-based high density 400G and 100G switches ideal for future proof designs and high bandwidth needs such as in High Performance Storage or Content Delivery Networks (CDNs)
• Dynamic deep buffers up to 24 GB, ideal for spine deployments where lossless performance and in-cast traffic is a concern such as in data analytics and IP storage
• Directly connected 50G, 100G and 200G attached storage systems, requiring high performance and predictable latency
• Line rate TunnelSec AES-256-GCM strong encryption. MACsec, IPsec and VXLANsec for point-to-point and end-to-end data security
• Comprehensive, wire-speed, cloud data center virtualization and carrier routing with EVPN-VXLAN, MPLS and Segment Routing
• Precision Timing for Enterprise, Broadcast and Service Provider with IEEE 1588 PTP and Synchronous Ethernet enables accurate timing solutions across Ethernet based networks without costly investment in separate timing networks
• Streaming network state for advanced analytics with CloudVision®
• Unique monitoring and provisioning features – LANZ, DANZ, AEM,, ZTP, VM Tracer, VXLAN, and eAPI
• Comprehensive L2 and L3 feature set for open multi-vendor networks with no proprietary lock-in
• Accelerated sFlow and IPFIX for network forensics
• Large scale L2, L3 and policy resources allow deployment flexibility with any-workload suitability
• NEBS compliance and DC power supplies designed for service provider environments

Arista 7280R3 Series

7280R3 Modular Series	Flexible modular 4RU system for up to 36 x 400G or 144 x 100G Choice of linecards with 25G SFP, 100G QSFP, 400G OSFP and QSFP-DD 14.4 Tbps of wire speed performance with 16 GB of ultra deep and dynamic buffers Over 2M IPv4/v6 routes with FlexRoute Over 5M IPv4/v6 routes with the 7280R3K Series and FlexRoute Scalable Accelerated sFlow on all models
7280PR3 Series and 7280DR3 Series	400G 1RU and 2RU systems High Density 400G ports with OSFP or QSFP-DD for flexible 100G, 50G and 400G support Maximum of 348 ports of 50GbE or 216 ports of 100G Up to 21.6Tbps of wire speed performance with 24GB of ultra deep and dynamic buffers Over 2M IPv4/v6 routes with FlexRoute Over 5M IPv4/v6 routes with the 7280R3K Series and FlexRoute Scalable Accelerated sFlow on all models
7280CR3 Series	100G 1RU and 2RU systems with a choice of port combinations with QSFP100 optics and cables Up to 96 ports of 100G in 2RU and 72 ports in 1RU Flexible interface combinations for 10/25/40/50/100G and 400G Up to 9.6Tbps of wire speed performance with 16GB of buffer Over 2M IPv4/v6 routes with FlexRoute Over 5M IPv4/v6 routes with the 7280CR3K Series and FlexRoute Scalable Accelerated sFlow on all models
7280SR3 Series	25G 1RU systems with a choice of 1/10/25G port combinations on SFP optics and cables Up to 48 ports of 25G in 1RU with 8 ports of 100G Flexible interface combinations for 10/25/40/50 and 100G Up to 2.4Tbps of wire speed performance with 8GB of buffer Over 2M IPv4/v6 routes with FlexRoute Over 5M IPv4/v6 routes with the 7280SR3K Series and FlexRoute Scalable Accelerated sFlow on all models

Scalability:

Each 7280R3 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.

Entry level 7280R3 platforms such as the 7280SR3-40YC6 provide platform specific scaling profiles as detailed in the table below:

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

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

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 MACsec Datasheet

Literature

• .400G Q&A
• .FlexRoute
• .Universal Cloud Network
• .Quick Reference Guide
• .EANTC 2020 EVPN and SR Interoperability Report
• .Leviton - 400G cabling
• .Fixed Config Switches Visio Stencils