7280R3A ARISTA | Alldatasheet

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Technical content

7280R3A Series Data Center Switch Router Data Sheet Product Highlights System Scale and Performance

  • 7280DR3A Series: Up to 54 x 400G
  • 7280CR3A Series: Up to 72 x 100G
  • 7280SR3A Series: Up to 48 x 50G
  • Up to 21.6. Tbps / 8.1 Bpps throughput
  • QSFP , OSFP and QSFP-DD: for 10-400G
  • 400G ZR and ZR+ Support
  • Dedicated OSFP-Line System ports
  • Synchronous Ethernet and IEEE 1588
  • MACsec, IPsec and VXLANsec encryption Cloud Grade Routing
  • Secure Internet Peering
  • Carrier Edge VPN Services
  • Next Generation EVPN Services for 5G/ MEC, CIN, & Metro
  • Carrier Core transport (LDP , RSVP-TE, SR-TE) and HA with FRR and TI-LFA
  • Next Generation timing (PTP and SyncE)
  • Open programmable APIs (JSON-RPC, NETCONF) for provisioning, telemetry, path selection/topology discovery Data Center Optimized Design
  • Ultra-deep packet buffer up to 24GB
  • Virtual Output Queues per port to eliminate head of line blocking
  • Over 94% efficient power supplies
  • Redundant & hot-swap power and fans
  • Designed for NEBS Virtualization and Provisioning
  • CloudVision
  • EVPN-VXLAN for next generation DC
  • LANZ for microburst detection
  • Zero Touch Provisioning (ZTP)
  • Accelerated sFlow (RFC3176) Cloud Networking Ready
  • Up to 384K MAC Addresses
  • Over 5M IPv4 Routes with 7280R3AK
  • Algorithmic ACLs for 400K+ rules Resilient Control Plane
  • High Performance eight-core x86 CPU
  • 64GB DRAM and 120GB SSD Arista Extensible Operating System
  • Single 64-bit binary image
  • Fine-grained truly modular network OS
  • Stateful Fault Containment & Repair
  • Full access to Linux shell and tools
  • Extensible platform - bash, python, C++ Overview The Arista 7280R3A Series of fixed systems, including the 7280R3A, 7280R3AM and the 7280R3AK, are the latest generation of Arista 7000 Series portfolio of data center switches. The 7280R3A 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, high bandwidth encryption 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. Designed for deployment in a wide range of open networking solutions including large scale layer 2 and layer 3 cloud designs, enterprise data centers and service provider networks, the 7280R3A Series support 100G and 400G interfaces, up to 54 ports of wirespeed 400G in 2RU. For maximum flexibility, each platform provides a choice of three levels of scale and functionality with Standard (R3A), Encryption (R3AM) and Large Scale (R3AK) models available. The 7280R3A’s capabilities address the requirements for modern networking and rich multi-media content delivery requiring a lossless forwarding solution in a compact and energy e fficient form factor, o ffering rich functionality for traditional data centre, virtualized/overlay networking and wide area networking along with deep packet buffers, large routing tables and industry leading switching capacity. 7280R3A systems with OSFP or QSFP-DD incorporate a flexible choice of interface speed including 25G and 50G and support for dense 400G DWDM, providing unparalleled flexibility and the ability to seamlessly transition data centers to the next generation of Ethernet performance. The 7280R3A Series provide industry leading power e fficiency. Combined with Arista EOS the 7280R3A Series delivers advanced features for big data, cloud, virtualized and traditional designs. Arista 7280R3A Series Arista EOS The Arista 7280R3A series run the same Arista EOS software as all Arista products, simplifying network administration. Arista EOS is a modular switch operating system with a unique state sharing architecture that cleanly separates switch state from protocol processing and application logic. Built on top of a standard Linux kernel, all EOS processes run in their own protected memory space and exchange state through an in-memory database. This multi-process state sharing architecture provides the foundation for in-service-software updates and self-healing resiliency. Arista’s 64-bit EOS is purpose built for high performance, large scale workloads and embeds advanced monitoring, telemetry and automation capabilities. With a powerful x86 CPU subsystem and full access to Linux, a wealth of standard tools can also be run natively on the switch for simple integration into automation workflows.

7280R3A Series | Platform Overview Software Defined Cloud Networks Arista Software De fined Cloud Networking (SDCN), combines the principles that have made cloud computing the unstoppable force that it is: automation, self service provisioning, and linear scaling of both performance and economics coupled with the trend in Software Defined Networking that delivers: network virtualization, custom programmability, simpli fied architectures, and lower capital expenditure. This combination creates a best-in-class software foundation for maximizing the value of the network to both the enterprise and service provider data center. A new architecture for the most mission-critical location within the IT infrastructure that simplifies management and provisioning, speeds up service delivery, lowers costs and creates opportunities for competitive differentiation, while putting control and visibility back in the hands of the network and systems administrators. The Four Pillars of Arista's Software Defined Cloud Networking: Universal Cloud Network

  • Scalable standards-based MLAG at Layer 2, ECMP for Layer 3 and EVPN for network virtualization flexibility
  • Non blocking leaf-spine architecture for 10K-500K hosts Cloud Control
  • Standards based EOS with AEM, ZTP/ZTR, LANZ and DANZ
  • Automated Monitoring for visibility and telemetry Network Wide Virtualization
  • Multi-vendor API Support with eAPI
  • Support for VMWare and NSX with VXLAN and VMTracer
  • Support for Openstack OVSDB Network Applications and Automated Management
  • Single point of network-wide state with Arista CloudVision
  • Networked applications for workload mobility, smart systems rollback and upgrades and workflow telemetry
  • Open Partner integration Scaling High Performance Data Centers The Arista 7280R3A Series deliver non-blocking switching capacity that enables dramatically faster and simpler network designs for data centers and lowers both capital and operational expenses. Arista’s wide range of systems, with a single consistent EOS, allows for flexible, right-sized product choice for all tiers of the network with a strong focus on open standards and interoperability. The 7280R3A family provides comprehensive support for all common data center architectures, including layer 2 MLAG, layer 3 ECMP and EVPN-VXLAN overlay networking. Leaf-spine topologies provide the most e fficient foundation for modern high performance applications, scalable to hundreds of thousands of hosts, while providing predictable, non-blocking, low latency performance. Arista’s Multi-Chassis Link Aggregation (MLAG) technology supports active/active L2 network topologies, while layer 3 Equal Cost Multi-Path (ECMP) designs enable construction of very high radix topologies for large scale deployment. Both designs support EVPN-VXLAN overlay networks for additional segmentation and can integrate with standards-based overlay controller solutions. The flexibility of the L2 and L3 multi-path design options combined with support for open standards provides maximum flexibility, scalability and network wide virtualization that scales to hundreds of thousands of hosts in a single two-tier design. The Arista 7280R3A Series FlexRoute engine provides Internet scale routing to support deployment as an Internet border/peering router, enterprise CDN backbone or data center interconnect (DCI). Arista FlexRoute along with EOS NetDB enables innovation not natively available in merchant chipsets. Arista EOS provides operational savings through visibility, automation and improved network operations. Cloud Grade Routing The 7280R3A series are key components of Arista’s portfolio of Cloud Grade Routing platforms that encompasses a wide choice of fixed and modular systems. Combining Arista EOS’s proven and feature rich Service Provider functionality, telemetry and open programmability with industry leading scale, density and power e fficiency, the R3 series systems are designed for versatile deployment in a wide variety of open networking environments. Next generation multi-service environments require flexibility, security and open programmability to leverage the power e fficiency and proven scale of cloud networks. The R3 Series routing solutions include large scale layer 2, layer 3 and EVPN based telco and cloud data center designs, low latency MEC overlay fabrics, data center interconnect (DCI) with long haul optics, provider edge networks with scaleable L2 and L3 VPN services, high density 100G/400G tra ffic engineered MPLS and SR-TE cores, 5G infrastructure and metro- aggregation for the backhaul of E-LINE services.

7280R3A Deterministic Network Performance The Arista 7280R3A Series uses a deep bu ffer virtual output queue (VOQ) architecture that eliminates head-of-line (HOL) blocking and virtually eliminates packet drops even in the most congested network scenarios. An advanced tra ffic scheduler fairly allocates bandwidth between all virtual output queues while accurately following queue disciplines including weighted fair queueing, fixed priority, or hybrid schemes. As a result, the Arista 7280R3A can handle the most demanding data center requirements with ease, including mixed traffic loads of real-time, multicast, and storage traffic while still delivering low latency. Routing Table Scale and FlexRouteTM Network scalability is directly impacted by the size of a system’s forwarding tables. In many systems a 'one size fits all' approach is adopted using discrete fixed size tables for each of the common types of forwarding entry. The Arista 7280R3A Series leverage a database for forwarding resources which can be allocated for MAC, Routing, Host and ARP tables with a choice of forwarding pro files that optimizes these tables. Arista’s innovative FlexRoute Engine, with its patented algorithmic approach to building layer 3 forwarding tables on Arista R-Series, provides support for the full internet routing table in hardware. Scaling to more than 5 million routes in 7280R3AK, the R series Universal Spine and Leaf platforms have su fficient headroom for future growth in both IPv4 and IPv6. The flexibility coupled with the range of system forwarding profiles ensures optimal resource allocation for a wide range of network topologies and use cases including Internet Peering, virtualization, Carrier Edge and Security as well as datacenter spine and leaf. 10-400G Wire-speed Encryption with TunnelSec 7280R3AM and 7280R3AK series platforms support Arista’s TunnelSec technology, enabling line-rate, industry standard, authenticated strong encryption using the AES-256-GCM block cipher. TunnelSec devices o ffer IEEE 802.1AE MAC Security (MACsec), IPsec (RFC 4303) and VXLANsec for flexible encryption of layer 2, layer 3 or overlay networks. While MACsec operates at the link layer, o ffering point to point encryption, IPsec and VXLANsec enable the construction of encrypted IP tunnels that traverse multiple unencrypted hops between router or VTEP endpoints enabling line-rate strong encryption across third party infrastructure for WAN or DCI deployments. The flexibility to o ffer multiple types of encryption 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 appliance based implementations. The 7280R3AM and 7280R3AK series support TunnelSec on all interface speeds, from 10G to 400G without a performance penalty. Encryption services are an EOS licensed feature and requires a license file to enable the encryption feature. License information is included in the ordering information section of this document. Dense 400G DWDM Arista's R3A platforms are optimized to support high power 400ZR OSFP and QSFP-DD optical modules. 400ZR modules are software tunable, DWDM, coherent optical modules, with a reach of up to 120km. When combined with Arista’s ZR Line System, up to 8x 400ZR modules can be multiplexed to transport 3.2 Tb/s over a single fiber pair. Arista's ZR Line System consists of the AMP-ZR, an optical amplifier packaged into a single transceiver module, and the CAB-LC8-CS, a simple fiber splitter/combiner that multiplexes up to 8x 400ZR modules into a fiber pair. Selected 7280R3A platforms include dedicated ports that can house the ampli fier without using data plane ports. The combination of 7280R3A, 400G-ZR and the ZR-LS represent a revolutionary plug-and-play approach, completely eliminating external transponders and line systems while reducing cost and complexity - allowing DCI links to be turned up as quickly and easily as inside-the-datacenter links. Algorithmic ACLs Algorithmic ACLs combine both software and hardware to enable more flexible and scalable solutions for access control, policy based forwarding and network telemetry. Combining general purpose memory with advanced software algorithms delivers higher scale, performance and e fficiency with lower power and is more cost e ffective than traditional solutions. Algorithmic ACLs leverage e fficient packet matching algorithms that in turn enables flow matching for access control, policy and visibility. The net bene fits are a high performance policy engine with both increased functionality and scale in a cost and power e fficient solution. Algorithmic ACLs are available on the 7280R3AK Series of products.

  • Enables IPv4 and IPv6 access control at the same scale
  • L4 rule ranges are programmed efficiently without expansion or reduced capacity
  • Multiple actions can be performed on a single packet or flow
  • User defined filters allow flexible packet classification based on offsets for custom actions
  • Supports rich policy with consistent semantics that would exhaust classical resources 7280R3A Series | Platform Overview

Enhanced Features for High Performance Cloud Networks The Arista 7280R3A Series delivers a suite of advanced tra ffic control and monitoring features to improve the agility of modern high performance environments, with solutions for automation, data monitoring, precise timing and next-generation virtualization. Automating the data center enables customers to dynamically provision computing resources in the most e fficient manner while also meeting business needs by maintaining service level agreements (SLAs). Arista EOS automates complex IT work flows and simpli fies network operations while reducing or even eliminating downtime. Arista EOS rich automation capabilities not only reduce the human error element in network operations but also enable IT operators to make the network work the way they want. Arista offers solutions for a variety of approaches to cloud-like network automation. Addressing the needs of the largest public cloud environments as well as applying those lessons learned in the turnkey CloudVision automation offering. CloudVision CloudVision is a network-wide approach for workload orchestration and work flow automation as a turnkey solution for Cloud Networking. CloudVision extends the EOS publish subscribe architectural approach across the network for state, topology, monitoring and visibility. This enables enterprises to move to cloud-class automation without needing any significant internal development. Precise Data Analysis Arista Latency Analyzer (LANZ) and Precision Data Analyzer (DANZ) are integrated features of EOS. DANZ provides a solution to monitoring and visibility challenges at 100Gbps and 400Gbps giving IT operations the ability to proactively deliver feedback on congestion events, filter, replicate, aggregate and capture traffic without affecting production performance. LANZ provides precise real- time monitoring of micro-burst and congestion events before they impact applications, with the ability to identify the sources and capture affected traffic for analysis. Precision Timing (IEEE 1588 and SyncE*) Many modern and emerging applications are using precision timing as part of their service delivery requirements including 5G, Media production, manufacturing, IoT sensors, high frequency trading etc. To meet the stringent timing and synchronization requirements, Arista’s hardware delivers various timing solutions, including high precision in-band time and frequency distribution support via Precision Time Protocol (PTP , IEEE 1588v2) and Synchronous Ethernet (ITU G.8261) as well as flexibility of time synchronization via external timing ports. It also supports Class C timing, to meet the enhanced accuracy requirements at the edge of the 5G networks. As part of PTP support, Arista platforms provide both Boundary and Transparent clock modes as well as PTP profiles (8275.1 and 8275.2) with full and partial timing support allowing greater flexibility in the distribution of end to end timing solutions. Virtualization The foundation for Arista's Network Virtualization solutions is VXLAN, an open IETF speci fication designed to standardize an overlay encapsulation protocol. Arista solutions range from OVSDB and Openstack integration to BGP EVPN in conjunction with EOS CloudVision®, a platform for network-wide workload orchestration and work flow automation. The 7280R3A builds on the deep bu ffer wire-speed gateway with EVPN/VXLAN for layer-2 and layer-3 stretch within data center as well as DCI use cases. The 7280R3A is the perfect solution for transit gateway between EVPN domains connected over MPLS. Inband Network Telemetry Inband network telemetry, or INT, is a standards approach to providing deep visibility into tra ffic in real-time, with no impact on switch performance. INT provides per- flow monitoring of tra ffic drops, latency, congestion and the network path. INT information can be exported in IPFIX or sFlow formats to a management system or collector such as Arista CloudVision, for predictive analytics and deep forensics to measure latency per device and across the network, trace packets and reconstruct path topology as well as detecting hot- spots. Inband Network Telemetry is available on the 7280R3A, 7280R3AM and 7280R3AK Series of products, with the ability to originate, pass and terminate, along with mirroring to external collectors. 7280R3A Series | Platform Overview * Roadmap capability for 2H2023

SFlow is a powerful tool used commonly by network operators for advanced network telemetry, capacity planning, security analysis and quality of experience monitoring. Traditional sFlow utilizes a system CPU for processing samples of hundreds of thousands of flows. In modern high performance systems guaranteed high rate sampling requires the capability to both sample and process packet rates of billions of packets per second. With the 7280R3A Series Accelerated sFlow feature the sampling and processing of flow samples into sFlow datagrams is handled via integrated sFlow engines capable of supporting 1:500 sampling rates on full wire speed systems or higher rates with selective sampling based on triggers and filters. All sFlow v5 information is included in the sFlow records ensuring consistent integration with existing standard sFlow collection and analysis tools and no loss of information. Maximum Network Design Flexibility

  • Scalable designs with up to a 512-way ECMP provides flexibility and balances traffic evenly across the largest leaf-spine designs
  • MLAG designs are e ffective at almost any layer of the network and maximize cross-sectional bandwidth with fast failover times measured in 100’s of milliseconds for link failures.
  • VXLAN gateway, bridging and routing with VMTracer features to enable next generation data center designs
  • Scalable routing tables to support internet route peering
  • Wide choice of dense 100G and 400G interfaces with broad support for flexible 10G, 25G, 50G or 200G modes.
  • Support for standards based IEEE 25GbE with mix and match support for simple and cost effective migration
  • Virtual output queue (VOQ) architecture and deep packet buffering to eliminate head of line blocking with low latency
  • ACL scalability with up to 100K entries per forwarding engine allows for rich policy control
  • Flexible allocation of L2 and L3 forwarding table resources for more design choice
  • PTP , Accelerated sFlow, DANZ and multi-port mirroring tools provide network wide visibility and monitoring to detect traffic bursts, monitor latency and congestion and allow capacity planning to improve application performance and availability 7280R3A System Scalability Switch Model 7280R3A Series 7280R3AK Series Profile L3 Balanced L3-XL L3-XXL L3-XXXL Balanced-XL ARP Entries 88k 80k 112k 112k 80k 96k MAC Addresses 224k 224k 256k 192k 384k 256k IPv4 Unicast Routes 1450k 800k 2250k 2850k 3950k 1850k Additional IPv4 Unicast Routes with FlexRoute + 1792k + 1792k + 2048k + 1536k + 3072k + 2048k IPv6 Unicast Routes 433-483k 250-267k 683-750k 833-950k 1100-1317k 567-617k Multicast Routes 128k 128k 128k 128k 128k 128k TCAM ACL Entries (Per chip) 24k 24k 24k 24k 24k 24k Traffic Policy ACL IPv4 Prefixes 30k 30k 430k 296k 30k 430k Traffic Policy ACL IPv6 Prefixes 10k 10k 150k 100k 10k 150k ECMP 512-Way 512-Way 512-Way 512-Way 512-Way 512-Way Maximum values dependent on shared resources in some cases 7280R3A Series | Platform Overview

Arista 7280R3A 1 and 2RU Rear Views AC Powered, Front to Rear airflow (red) 2U Hot swap fan modules 2.4kW Hot swap power supplies 1.5kW Hot swap power supplies1U Hot swap fan modules 7280DR3A-54: 54 port 400G QSFP-DD - 21.6 Tbps wire speed performance with 24 GB buffer - MACsec, SyncE and large scale options - 2 x OSFP-LS ports for dense 400G-ZR deployment Arista 7280CR3A-48D6 Arista 7280CR3A-24D12 Arista 7280DR3A-36 Arista 7280DR3A-54 7280DR3A-36: 36 port 400G QSFP-DD - 14.4 Tbps wire speed performance with 16 GB buffer - MACsec, SyncE and large scale options - 2 x OSFP-LS ports for dense 400G-ZR deployment 7280CR3A-24D12: 24 port 100G QSFP and 12 port 400G QSFP-DD - 7.2 Tbps wire speed performance with 8 GB buffer - MACsec, SyncE and large scale options 7280CR3A-48D6: 48 port 100G QSFP and 6 port 400G QSFP-DD - 7.2 Tbps wire speed performance with 8 GB buffer - MACsec, SyncE and large scale options - 1 x OSFP-LS ports for dense 400G-ZR deployment 7280CR3A-72: 72 port 100G QSFP - 7.2 Tbps wire speed performance with 8 GB buffer - MACsec, SyncE and large scale options 7280R3A High Availability The Arista 7280R3A switches were designed for continuous operations with system wide monitoring of both hardware and software components, simple serviceability and provisioning to prevent single points of failure. Key high availability features include:

  • 1+1 hot-swappable power supplies and hot-swap fans provide dynamic temperature control combined with N+1 redundancy
  • Color coded PSU’s and fans that deliver platinum level power efficiency
  • Live software patching
  • Self healing software with Stateful Fault Repair (SFR) 7280R3A Series | Platform Overview Arista 7280CR3A-32S Arista 7280CR3A-72 Arista 7280SR3A-48YC8 7280CR3A-32S: 32 port 100G QSFP with 200G/400G flexibility - 3.6 Tbps wire speed performance with 4 GB buffer - MACsec, SyncE and large scale options 7280SR3A-48YC8: 48 port 10G/25G/50G SFP and 6 port 200G QSFP - 3.6 Tbps wire speed performance with 4 GB buffer - MACsec, SyncE and large scale options

7280R3A Series | Features * Not currently supported in EOS Layer 2 Features

  • 802.1w Rapid Spanning Tree
  • 802.1s Multiple Spanning Tree Protocol
  • Rapid Per VLAN Spanning Tree (RPVST+)
  • 4096 VLANs
  • Q-in-Q
  • 802.3ad Link Aggregation/LACP
  • 256 Ports / Channel
  • 2048 groups per system (subject to system density)
  • MLAG (Multi-Chassis Link Aggregation)
  • Uses IEEE 802.3ad LACP
  • 512 ports per MLAG
  • 802.1Q VLANs/Trunking
  • 802.1AB Link Layer Discovery Protocol
  • 802.3x Receive Flow Control
  • IGMP v1/v2/v3 snooping
  • Storm Control
  • Layer 2 sub-interfaces Layer 3 Features
  • Static Routes
  • Routing Protocols: OSPF, OSPFv3, BGP , MP-BGP , IS-IS, and RIPv2
  • BGP FlowSpec, BMP , BGP-RPKI, PIC
  • 512-way Equal Cost Multipath Routing (ECMP)
  • Unequal Cost Multipath Routing with BGP communities
  • VRF, Inter-VRF Route Leaking
  • Bi-Directional Forwarding Detection (BFD)
  • Micro BFD (RFC 7130)
  • Unicast Reverse Path Forwarding (uRPF)
  • VXLAN Bridging and Routing
  • VRRP / VRRPv3
  • Virtual ARP (VARP)
  • Policy Based Routing (PBR)
  • Route Maps & RCF (Routing Control Functions)
  • Layer 3 sub-interfaces
  • Route-target pruning, Route-target constraints
  • Route Reflector, Optimal Route Reflector Multicast
  • IGMP v2/v3
  • MLD v2
  • Protocol Independent Multicast (PIM-SM / PIM-SSM)
  • PIM-BiDir *
  • Anycast RP (RFC 4610)
  • Multicast Source Discovery Protocol (MSDP)
  • Multicast Only FastReroute (MoFRR) Advanced Monitoring and Provisioning
  • Latency Analyzer and Microburst Detection (LANZ)
  • Configurable Congestion Notification (CLI, Syslog)
  • Streaming Events (GPB Encoded)
  • Zero Touch Provisioning (ZTP)
  • Advanced Mirroring
  • Port Mirroring (14 sessions)
  • Enhanced Remote Port Mirroring
  • SPAN/TAP M:N Aggregation
  • L2/3/4 Filtering Post-card Telemetry
  • Advanced Event Management suite (AEM)
  • CLI Scheduler
  • Event Manager
  • Event Monitor
  • Linux tools
  • Integrated packet capture/analysis with TCPDump
  • Restore and Configure from USB
  • RFC 3176 sFlow
  • Optional SSD for logging and data capture
  • IPFIX Security Features
  • Control Plane Protection (CPP)
  • Ingress / Egress ACLs using L2, L3, L4 fields
  • Ingress / Egress ACL Logging and Counters
  • MAC ACLs
  • UDF (User Defined Fields)
  • ACL Deny Logging
  • ACL Counters
  • Atomic ACL Hitless restart
  • DHCP Relay / Snooping
  • MAC Security
  • RADIUS/TACACS+
  • ARP trapping and rate limiting
  • Scalable traffic policies
  • MACsec (IEEE 802.1AE)
  • IPsec
  • VXLANsec Quality of Service (QoS) Features
  • Up to 8 queues per port / sub-interface
  • Strict priority queueing
  • DSCP based classification and remarking
  • Egress shaping / Weighted round robin (WRR)
  • WFQ, CIR*, ETS*, Fixed Priority
  • Policing / Shaping, H-QoS
  • Explicit Congestion Notification (ECN) marking
  • 802.1Qbb Per-Priority Flow Control (PFC)
  • 802.1Qaz Enhanced Transmission Selection (ETS)
  • Data Center Bridging Extensions (DCBX)
  • Virtual Output Queueing
  • Distributed Scheduler Precision Timing
  • Synchronous Ethernet with ESMC
  • IEEE 1588-2008 PTP T-GM, T-BC, T-TSC Supported Features in EOS A list of supported features can be found at: https://www.arista.com/en/support/product-documentation/supported-features

7280R3A Series | Features Network Management

  • CloudVision
  • Configuration rollback and commit
  • 100/1000 Management Port
  • RS-232 Serial Console Port
  • USB Port
  • SNMP v1, v2, v3
  • Management over IPv6
  • Telnet and SSHv2
  • Syslog
  • AAA
  • Industry Standard CLI
  • Beacon LED for system identification
  • System Logging
  • Environment monitoring MPLS
  • LDP , RSVP-TE, FRR, BGP-LU, BGP-LS
  • Bandwidth reservation, auto-bandwidth, split-tunneling
  • ISIS-SR, OSPF-SR*, SR-TE, TI-LFA, BGP-SR, BGP-LU for EPE, ISIS FlexAlgo
  • Seamless BFD with Round Trip Time
  • Class Based Forwarding
  • Flow-Aware Transport (RFC 6391), Entropy label (RFC 6790) L2/L3 VPN
  • IP-VPN (RFC 4364), 6PE, 6vPE, inter-as option A,B&C
  • LDP pseudowires (Type-4 & Type-5)
  • VPLS with LDP signaling, BGP-AD
  • VPLS with BGP signaling*
  • Multicast VPN (NG-MVPN) mLDP with default MDT, data MDT*
  • EVPN-VXLAN (L2 & L3)
  • EVPN-MPLS (L2 & L3)
  • EVPN VLAN based & VLAN-aware services
  • EVPN Multihoming
  • EVPN VPWS & VPWS-FXC with MPLS
  • EVPN integrated Routing & Bridging (IRB)
  • EVPN E-tree with MPLS
  • EVPN L2 multicast, L3 OISM with VXLAN
  • EVPN-VXLAN to EVPN-MPLS, EVPN-VXLAN to EVPN-VXLAN, EVPN-VXLAN to IP-VPN GWs Extensibility
  • Linux Tools
  • Bash shell access and scripting
  • RPM support
  • Custom kernel modules
  • Software Defined Networking (SDN)
  • OpenStack Neutron Plug-in support
  • Programmatic access to system state
  • EOS SDK, Python, C++, GO
  • Chef, Puppet
  • eAPI (HTTP & HTTPS), NETCONF, RESTCONF, GNMI
  • OpenConfig yang models, EOS native models
  • Native KVM/QEMU support Ethernet OAM
  • Ethernet CFM (UP , DOWN MEPs)
  • LM (Loss Measurement), SLM (Synthetic Loss Measurement), DM (Delay Measurement)
  • RFC2544 (Initiator & reflector)
  • TWAMP (Two Way Active Measurement Protocol)
  • Link Fault signaling
  • EOS connectivity monitor
  • MPLS ping & trace route, VCCV support Standards Compliance
  • 802.1D Bridging and Spanning Tree
  • 802.1p QOS/COS
  • 802.1Q VLAN Tagging
  • 802.1w Rapid Spanning Tree
  • 802.1s Multiple Spanning Tree Protocol
  • 802.1AB Link Layer Discovery Protocol
  • 802.3ad Link Aggregation with LACP
  • 802.3x Flow Control
  • 802.3ab 1000BASE-T
  • 802.3z Gigabit Ethernet
  • 802.3ae 10 Gigabit Ethernet
  • 802.3by 25 Gigabit Ethernet
  • 802.3ba 40 Gigabit Ethernet
  • 802.3ba 100 Gigabit Ethernet
  • 802.3bs 400 and 200 Gigabit Ethernet
  • 802.3cm 400 Gigabit over multimode fiber
  • RFC 2460 Internet Protocol, Version 6 (IPv6)
  • RFC 2461 Neighbor Discovery for IP Version 6 (IPv6)
  • RFC 2462 IPv6 Stateless Address Autoconfiguration
  • RFC 2463 Internet Control Message Protocol (ICMPv6)
  • IEEE 1588-2008 Precision Time Protocol SNMP MIBs
  • MIBs available at https://www.arista.com/en/support/ product-documentation/arista-snmp-mibs OpenConfig paths
  • Supported paths available at https://www.arista.com/en/ support/toi/path-support * Not currently supported in EOS

7280R3A Series | Technical Specifications Model Comparison 7280DR3A-54 7280DR3AM-54 7280DR3AK-54 Ports 54 x QSFP-DD 54 x QSFP-DD 54 x QSFP-DD Max 400G Ports 1 54 54 54 Max 100G Ports 1 216 216 216 Max 50G Ports 1 348 348 348 Max 40G Ports (using QSFP+)1 54 54 54 Max 25/10G Ports 1 348 348 348 Encryption — All Ports All Ports Max Total Interfaces 2 348 348 348 Packets/Second 8.1 Bpps 8.1 Bpps 8.1 Bpps Latency From 3.8 us From 3.8 us From 3.8 us CPU Eight-Core x86 Eight-Core x86 Eight-Core x86 System Memory 64 Gigabytes 64 Gigabytes 64 Gigabytes Packet Buffer Memory 24 GB 24 GB 24 GB Synchronous Ethernet Inband + PPS/10M/ToD OSFP-LS Ports 2 USB Ports 1 SSD Storage 120 GB 100/1000 Mgmt Ports 1 RS-232 Serial Ports 1 (RJ-45) Hot-swap Power Supplies 2 (1+1 redundant) Hot-swappable Fans 4 (N+1 redundant) Airflow Direction Front to Rear Rack Units 2 U Size (WxHxD) inc. handles 17.3 x 3.46 x 30.07 in (43.99 x 8.79 x 76.39 cm) Typical/Max Power Draw 3 933 W / 1715 W Weight 61.6 lbs (27.94 kg) Fan Tray FAN-7012H Power Supplies PWR-3001 (AC or DC) Accelerated sFlow Yes EOS Feature Licenses Group 5 Minimum EOS 4.29.1 1. Maximum port values are uni-dimensional, may require the use of break-outs and are subject to transceiver/cable capabilities. Detailed information can be found here. 2. Where supported by EOS, each system supports a maximum number of interfaces. Certain configurations may impose restrictions on which physical ports can be used 3. Typical power consumption measured at 25C ambient with 50% load on all ports, excludes transceivers.

7280R3A Series | Technical Specifications Model Comparison 7280DR3A-36 7280DR3AM-36 7280DR3AK-36 Ports 36 x QSFP-DD 36 x QSFP-DD 36 x QSFP-DD Max 400G Ports 1 36 36 36 Max 100G Ports 1 144 144 144 Max 50G Ports 1 232 232 232 Max 40G Ports (using QSFP+)1 36 36 36 Max 25/10G Ports 1 232 232 232 Encryption — All Ports All Ports Max Total Interfaces 2 232 232 232 Packets/Second 5.4 Bpps 5.4 Bpps 5.4 Bpps Latency From 3.8 us From 3.8 us From 3.8 us CPU Eight-Core x86 Eight-Core x86 Eight-Core x86 System Memory 64 Gigabytes 64 Gigabytes 64 Gigabytes Packet Buffer Memory 16 GB 16 GB 16 GB Synchronous Ethernet Inband + PPS/10M/ToD OSFP-LS Ports 2 USB Ports 1 SSD Storage 480 GB 100/1000 Mgmt Ports 1 RS-232 Serial Ports 1 (RJ-45) Hot-swap Power Supplies 2 (1+1 redundant) Hot-swappable Fans 4 (N+1 redundant) Airflow Direction Front to Rear Rack Units 2 U Size (WxHxD) inc. handles 17.3 x 3.46 x 24.09 in (43.99 x 8.79 x 61.18 cm) Typical/Max Power Draw 3 643 W / 1283 W Weight 53.1 lbs (24.09 kg) Fan Tray FAN-7012H Power Supplies PWR-2411 (AC or DC) Accelerated sFlow Yes EOS Feature Licenses Group 5 Minimum EOS 4.30.0 1. Maximum port values are uni-dimensional, may require the use of break-outs and are subject to transceiver/cable capabilities. Detailed information can be found here. 2. Where supported by EOS, each system supports a maximum number of interfaces. Certain configurations may impose restrictions on which physical ports can be used 3. Typical power consumption measured at 25C ambient with 50% load on all ports, excludes transceivers.

7280R3A Series | Technical Specifications Model Comparison 7280CR3A-24D12 7280CR3AM-24D12 7280CR3AK-24D12 Ports 24 x QSFP100 12 x QSFP-DD 24 x QSFP100 12 x QSFP-DD 24 x QSFP100 12 x QSFP-DD Max 400G Ports 1 12 12 12 Max 100G Ports 1 84 84 84 Max 50G Ports 1 116 116 116 Max 40G Ports (using QSFP+)1 36 36 36 Max 25/10G Ports 1 116 116 116 Encryption — All Ports All Ports Max Total Interfaces 2 116 116 116 Packets/Second 2.7 Bpps 2.7 Bpps 2.7 Bpps Latency From 3.8 us From 3.8 us From 3.8 us CPU Eight-Core x86 Eight-Core x86 Eight-Core x86 System Memory 64 Gigabytes 64 Gigabytes 64 Gigabytes Packet Buffer Memory 8 GB 8 GB 8 GB Synchronous Ethernet Inband + PPS/10M/ToD OSFP-LS Ports — USB Ports 1 SSD Storage 480 GB 100/1000 Mgmt Ports 1 RS-232 Serial Ports 1 (RJ-45) Hot-swap Power Supplies 2 (1+1 redundant) Hot-swappable Fans 3 (N+1 redundant) Airflow Direction Front to Rear and Rear to Front Rack Units 1 U Size (WxHxD) inc. handles 17.3 x 1.72 x 23.31 in (43.99 x 4.37 x 59.2 cm) Typical/Max Power Draw 3 346 W / 845 W Weight 32.6 lbs (14.79 kg) Fan Tray FAN-7011H Power Supplies PWR-1511-AC or PWR-1511-DC Accelerated sFlow Yes EOS Feature Licenses Group 4 Minimum EOS 4.31.1 1. Maximum port values are uni-dimensional, may require the use of break-outs and are subject to transceiver/cable capabilities. Detailed information can be found here. 2. Where supported by EOS, each system supports a maximum number of interfaces. Certain configurations may impose restrictions on which physical ports can be used 3. Typical power consumption measured at 25C ambient with 50% load on all ports, excludes transceivers.

7280R3A Series | Technical Specifications Model Comparison 7280CR3A-48D6 7280CR3AM-48D6 7280CR3AK-48D6 Ports 48 x QSFP100 6 x QSFP-DD 48 x QSFP100 6 x QSFP-DD 48 x QSFP100 6 x QSFP-DD Max 400G Ports 1 6 6 6 Max 100G Ports 1 68 68 68 Max 50G Ports 1 114 114 114 Max 40G Ports (using QSFP+)1 54 54 54 Max 25/10G Ports 1 114 114 114 Encryption — All Ports All Ports Max Total Interfaces 2 116 116 116 Packets/Second 2.7 Bpps 2.7 Bpps 2.7 Bpps Latency From 3.8 us From 3.8 us From 3.8 us CPU Eight-Core x86 Eight-Core x86 Eight-Core x86 System Memory 64 Gigabytes 64 Gigabytes 64 Gigabytes Packet Buffer Memory 8 GB 8 GB 8 GB Synchronous Ethernet Inband + PPS/10M/ToD OSFP-LS Ports 1 USB Ports 1 SSD Storage 120 GB 100/1000 Mgmt Ports 1 RS-232 Serial Ports 1 (RJ-45) Hot-swap Power Supplies 2 (1+1 redundant) Hot-swappable Fans 4 (N+1 redundant) Airflow Direction Front to Rear and Rear to Front Rack Units 2 U Size (WxHxD) inc. handles 17.3 x 3.46 x 27.31 in (43.99 x 8.79 x 68.38 cm) Typical/Max Power Draw 3 388 W / 979 W Weight 48.6 lbs (22.04 kg) Fan Tray FAN-7012H Power Supplies PWR-1512-AC or PWR-1511-DC Accelerated sFlow Yes EOS Feature Licenses Group 4 Minimum EOS 4.31.1 1. Maximum port values are uni-dimensional, may require the use of break-outs and are subject to transceiver/cable capabilities. Detailed information can be found here. 2. Where supported by EOS, each system supports a maximum number of interfaces. Certain configurations may impose restrictions on which physical ports can be used 3. Typical power consumption measured at 25C ambient with 50% load on all ports, excludes transceivers.

7280R3A Series | Technical Specifications Model Comparison 7280CR3A-72 7280CR3AM-72 7280CR3AK-72 Ports 72 x QSFP100 72 x QSFP100 72 x QSFP100 Max 400G Ports 1 — — — Max 100G Ports 1 72 72 72 Max 50G-2 Ports 1 102 102 102 Max 40G Ports (using QSFP+)1 72 72 72 Max 25/10G Ports 1 102 102 102 Encryption — All Ports All Ports Max Total Interfaces 2 116 116 116 Packets/Second 2.7 Bpps 2.7 Bpps 2.7 Bpps Latency From 3.8 us From 3.8 us From 3.8 us CPU Eight-Core x86 Eight-Core x86 Eight-Core x86 System Memory 64 Gigabytes 64 Gigabytes 64 Gigabytes Packet Buffer Memory 8 GB 8 GB 8 GB Synchronous Ethernet Inband + PPS/10M/ToD OSFP-LS Ports — USB Ports 1 SSD Storage 120 GB 100/1000 Mgmt Ports 1 RS-232 Serial Ports 1 (RJ-45) Hot-swap Power Supplies 2 (1+1 redundant) Hot-swappable Fans 4 (N+1 redundant) Airflow Direction Front to Rear and Rear to Front Rack Units 2 U Size (WxHxD) inc. handles 17.3 x 3.46 x 27.04 in (43.99 x 8.79 x 68.69 cm) Typical/Max Power Draw 3 406 W / 754 W Weight 49.4 lbs (22.41 kg) Fan Tray FAN-7012H Power Supplies PWR-1512-AC or PWR-1511-DC Accelerated sFlow Yes EOS Feature Licenses Group 4 Minimum EOS 4.31.2 1. Maximum port values are uni-dimensional, may require the use of break-outs and are subject to transceiver/cable capabilities. Detailed information can be found here. 2. Where supported by EOS, each system supports a maximum number of interfaces. Certain configurations may impose restrictions on which physical ports can be used 3. Typical power consumption measured at 25C ambient with 50% load on all ports, excludes transceivers.

7280R3A Series | Technical Specifications Model Comparison 7280CR3A-32S 7280CR3AM-32S 7280CR3AK-32S Ports 30 x QSFP100/200 2 x QSFP200/QSFP-DD 30 x QSFP100/200 2 x QSFP200/QSFP-DD 30 x QSFP100/200 2 x QSFP200/QSFP-DD Max 400G Ports 1 2 2 2 Max 200G Ports 1 18 18 18 Max 100G Ports 1 36 36 36 Max 50G-1 Ports 1 56 56 56 Max 25/10G Ports 1 56 56 56 Encryption — All Ports All Ports Max Total Interfaces 2 56 56 56 Packets/Second 1.35 Bpps 1.35 Bpps 1.35 Bpps Latency From 3.8 us From 3.8 us From 3.8 us CPU Eight-Core x86 Eight-Core x86 Eight-Core x86 System Memory 64 Gigabytes 64 Gigabytes 64 Gigabytes Packet Buffer Memory 4 GB 4 GB 4 GB Synchronous Ethernet Inband + PPS/10M/ToD USB Ports 1 SSD Storage 120 GB 100/1000 Mgmt Ports 1 RS-232 Serial Ports 1 (RJ-45) Hot-swap Power Supplies 2 (1+1 redundant) Hot-swappable Fans 3 (N+1 redundant) Airflow Direction Front to Rear and Rear to Front Rack Units 1 U Size (WxHxD) inc. handles 17.3 x 1.72 x 22.27 in (43.99 x 4.37 x 56.57 cm) Typical/Max Power Draw 3 302 W / 481 W Weight 28.25 lbs (12.81 kg) Fan Tray FAN-7011H Power Supplies PWR-1512-AC or PWR-1511-DC Accelerated sFlow Yes EOS Feature Licenses Group 3 Minimum EOS 4.32.1 1. Maximum port values are uni-dimensional, may require the use of break-outs and are subject to transceiver/cable capabilities. Detailed information can be found here. 2. Where supported by EOS, each system supports a maximum number of interfaces. Certain configurations may impose restrictions on which physical ports can be used 3. Typical power consumption measured at 25C ambient with 50% load on all ports, excludes transceivers.

7280R3A Series | Technical Specifications Model Comparison 7280SR3A-48YC8 7280SR3AM-48YC8 7280SR3AK-48YC8 Ports 48 x SFP50 4 x QSFP200 4 x QSFP100 48 x SFP50 4 x QSFP200 4 x QSFP100 48 x SFP50 4 x QSFP200 4 x QSFP100 Max 400G Ports 1 — — — Max 200G Ports 1 6 6 6 Max 100G Ports 1 8 8 8 Max 50/25/10G Ports 1 48 48 48 Max 40G Ports (using QSFP+)1 8 8 8 Encryption — All Ports All Ports Max Total Interfaces 2 56 56 56 Packets/Second 1.35 Bpps 1.35 Bpps 1.35 Bpps Latency From 3.8 us From 3.8 us From 3.8 us CPU Eight-Core x86 Eight-Core x86 Eight-Core x86 System Memory 64 Gigabytes 64 Gigabytes 64 Gigabytes Packet Buffer Memory 4 GB 4 GB 4 GB Synchronous Ethernet Inband + PPS/10M/ToD USB Ports 1 SSD Storage 120 GB 100/1000 Mgmt Ports 1 RS-232 Serial Ports 1 (RJ-45) Hot-swap Power Supplies 2 (1+1 redundant) Hot-swappable Fans 3 (N+1 redundant) Airflow Direction Front to Rear and Rear to Front Rack Units 1 U Size (WxHxD) inc. handles 17.3 x 1.72 x 19.81 in (43.99 x 4.37 x 50.31 cm) Typical/Max Power Draw 3 290 W / 391 W Weight 24.75 lbs (11.23 kg) Fan Tray FAN-7011H Power Supplies PWR-1011-AC or PWR-1011-DC Accelerated sFlow Yes EOS Feature Licenses Group 2 Minimum EOS 4.32.1 1. Maximum port values are uni-dimensional, may require the use of break-outs and are subject to transceiver/cable capabilities. Detailed information can be found here. 2. Where supported by EOS, each system supports a maximum number of interfaces. Certain configurations may impose restrictions on which physical ports can be used 3. Typical power consumption measured at 25C ambient with 50% load on all ports, excludes transceivers.

Power Supply Specifications Power Supply PWR-1011 AC PWR-1011 DC PWR-1512 and 1511 AC PWR-1511 DC Input Voltage 100-240 VAC -48 to -60 VDC 200-240 VAC -48 to -60 VDC Max Input Current 12.0 - 6.0 A 23 A Max (-48 V) 9.6 A 35.2 A Max (-48 V) Input Frequency 50/60 Hz DC 50/60 Hz DC Output Power 1000 W 1000 W 1500 W 1500 W Input Connector IEC 60320 C14 AWG #6 Max IEC 60320 C14 AWG #6 Max Efficiency 93% Platinum 94% 93% Platinum 92% Standards Compliance EMC FCC Class A, ICES-003, EN 55032, EN IEC 61000-3-2:2019, EN 61000-3-3 Immunity EN 55035 EN 300 386 Safety EN 62368-1:2014 + A11:2017 IEC 62368-1:2014 Certifications BSMI (Taiwan) CE (European Union) KCC (South Korea) NRTL (North America) RCM (Australia/New Zealand) UKCA (United Kingdom) VCCI (Japan) European Union Directives 2014/35/EU Low Voltage Directive 2014/30/EU EMC Directive 2012/19/EU WEEE Directive 2011/65/EU RoHS Directive 2015/863/EU Commission Delegated Directive Further Information Product Certification Portal Environmental Characteristics Operating Temperature 1 0 to 40˚C (32 to 104˚F) Storage Temperature -40 to 70˚C (-40 to 158˚F) Relative Humidity 5 to 95% Operating Altitude 0 to 10,000 ft, (0-3,000m) 7280R3A Series | Technical Specifications 1. Certain airflow configurations or the use of higher power or reduced temperature range optics may reduce maximum operating temperature. Power Supply PWR-2411 AC PWR-2411 DC PWR-3001 AC PWR-3001 DC Input Voltage 200-240 VAC -48 to -60 VDC 200-240 VAC -48 to -60 VDC Max Input Current 14 A 55 A Max (-48 V) 17 A 69 A Max (-48 V) Input Frequency 50/60 Hz DC 50/60 Hz DC Output Power 2400 W 2400 W 3000 W 3000 W Input Connector IEC 60320 C20 AWG #6 Max SAF-D AWG #3 Max Efficiency 93% Platinum 94% 94% Platinum 94%

Supported Optics and Cables 1 Interface Type 400G QSFP-DD ports 400GBASE-CR8 QSFP-DD to QSFP-DD: 1m-2.5m lengths 400GBASE-AOC QSFP-DD to QSFP-DD: 1m-30m lengths 400GBASE-SR8 100m OM3/4 Parallel MMF 400GBASE-DR4 500m Parallel SM 400GBASE-XDR4 2km Parallel SM 400GBASE-FR4 2km Duplex SM 400GBASE-LR4 10km Duplex SM 400GBASE-PLR4 10km Parallel SM 400GBASE-ZR 120km (with optical amplification) 200GBASE-CR4 QSFP-DD to 2xQSFP: 1m to 2.5m lengths 200GBASE-SR4 100m (QDD-400G-SR8 / QSFP-200G-SR4) 200GBASE-FR4 2km (using QSFP-200G-FR4) 100GBASE-CR2 QSFP-DD to 4xQSFP: 1m to 3m lengths 100GBASE-CR4 2 QSFP-DD to 2xQSFP: 1m to 3m lengths 50GBASE-CR QSFP-DD to 8xQSFP: 1m to 3m lengths 50GBASE-CR2 2 QSFP-DD to 4xQSFP: 1m to 3m lengths 25GBASE-CR 2 QSFP-DD to 8xSFP: 1m to 3m lengths Interface Type 100G QSFP ports 100GBASE-SR4 70m OM3 / 100m OM4 Parallel MMF 100GBASE-XSR4 150m OM3 / 300m OM4 Parallel MMF 100GBASE-SWDM4 70m OM3 / 100m OM4 Duplex MMF 100GBASE-SRBD 70m OM3 / 100m OM4 Duplex MMF 100GBASE-LR 10km Duplex SM 100GBASE-LR4 10km Duplex SM 1. For a complete list of transceivers, please refer to the Transceiver Datasheet and check EOS release notes for support 2. Requires OSFP / QSFP-DD port to be configured for 200G, 8 x 25G NRZ lanes. Allows interop with 100G QSFP and 25G SFP ports Arista Optics and Cables The Arista 7280R3A Series supports a wide range of 10G to 400G pluggable optics and cables. For a complete list of modules, detailed technical specifications and the first EOS Software release which provides support for a specific module, visit https://www.arista.com/en/products/transceivers-cables. 7280R3A Series | Optics Supported Optics and Cables 1 Interface Type 100G QSFP ports 100GBASE-LRL4 2km Duplex SM 100GBASE-XCWDM4 10km Duplex SM 100GBASE-CWDM4 2km Duplex SM 100GBASE-FR 2km Duplex SM 100GBASE-DR 500m Duplex SM 100GBASE-PSM4 500m Parallel SM 100GBASE-AOC 1m to 30m lengths 100GBASE-ERL4 40km Duplex SM 100GBASE-CR4 QSFP to QSFP: 1m to 5m lengths 50GBASE-CR2 QSFP to 2xQSFP: 1m to 5m lengths Interface Type 40G QSFP ports 10GBASE-CR QSFP+ to 4xSFP+: 0.5m-5m lengths 40GBASE-CR4 QSFP+ to QSFP+: 0.5m-5m lengths 40GBASE-AOC 3m to 100m lengths 40GBASE-UNIV 150m OM3 / 150m OM4, 500m SM 40GBASE-SRBD 100m OM3 /150m OM4 Duplex MMF 40GBASE-SR4 100m OM3 /150m OM4 Parallel MMF 40GBASE-XSR4 300m OM3 /400m OM4 Parallel MMF 40GBASE-PLRL4 1km (1km 4x10G LR/LRL) 40GBASE-PLR4 10km (10km 4x10G LR/LRL) 40GBASE-LRL4 1km Duplex SM 40GBASE-LR4 10km Duplex SM 40GBASE-ER4 40km Duplex SM

7280R3A Series | Ordering Information 7280DR3A-54 Product Description DCS-7280DR3A-54-F Arista 7280R3A, 54x400GbE QSFP-DD switch router, front to rear air, 2 x AC DCS-7280DR3A-54# Arista 7280R3A, 54x400GbE QSFP-DD switch router, configurable fans and psu DCS-7280DR3AM-54-F Arista 7280R3A, 54x400GbE QSFP-DD switch router, TunnelSec, front to rear air, 2 x AC DCS-7280DR3AM-54# Arista 7280R3A, 54x400GbE QSFP-DD switch router, TunnelSec, configurable fans and psu DCS-7280DR3AK-54-F Arista 7280R3A, 54x400GbE QSFP-DD switch router, large routes and TunnelSec, front to rear air, 2 x AC DCS-7280DR3AK-54# Arista 7280R3A, 54x400GbE QSFP-DD switch router, large routes and TunnelSec, configurable fans and psu PWR-3001-AC-RED Arista PSU, 1RU, AC/DC, 3000W, FORWARD, 73.5MM PWR-3001-DC-RED Arista PSU, 1RU, DC/DC, 3000W, FORWARD, 73.5MM FAN-7012H-RED Spare fan module for Arista 7000 Series 2RU High Speed Fan (front-to-rear airflow) KIT-7203 Spare tool-free accessory kit (v2) for Arista 2RU switches. 4-post mount. (2x SAF-D-C20, 2m) KIT-7004-2UL Spare extended tool-free 4-post mount kit (v2) for 2-4RU Arista tool-free switches CAB-SYNCE-RJ Spare Time of Day adapter cable (USB-C to 2 x RJ-45) KIT-GND-EXT-2RU Arista 7000 Series 2RU Ground Extender Kit for NEBS compliance (DR3A-54 Only) Note: - For the complete contents of each accessory kit, please use the lookup tool here: https://www.arista.com/en/support/product-documentation/accessory-kit-lookup - Front-to-rear means the air flows from the switch port side to the fan side. Rear to front means the air flows from the fan side to the switch port side.

7280R3A Series | Ordering Information 7280DR3A-36 Product Description DCS-7280DR3A-36-F Arista 7280R3A, 36x400GbE QSFP-DD switch router, front to rear air, 2 x AC DCS-7280DR3A-36# Arista 7280R3A, 36x400GbE QSFP-DD switch router, configurable fans and psu DCS-7280DR3AM-36-F Arista 7280R3A, 36x400GbE QSFP-DD switch router, TunnelSec, front to rear air, 2 x AC DCS-7280DR3AM-36# Arista 7280R3A, 36x400GbE QSFP-DD switch router, TunnelSec, configurable fans and psu DCS-7280DR3AK-36-F Arista 7280R3A, 36x400GbE QSFP-DD switch router, large routes and TunnelSec, front to rear air, 2 x AC DCS-7280DR3AK-36# Arista 7280R3A, 36x400GbE QSFP-DD switch router, large routes and TunnelSec, configurable fans and psu DCS-7280DR3AK-36S-F Arista 7280R3A, 36x400GbE QSFP-DD switch router, large routes and TunnelSec, front to rear air, 2 x AC (secure boot enabled) DCS-7280DR3AK-36S# Arista 7280R3A, 36x400GbE QSFP-DD switch router, large routes and TunnelSec, configurable fans and psu (secure boot enabled) PWR-2411-AC-RED Arista PSU, 1RU, AC/DC, 2400W, FORWARD, 73.5MM PWR-2411-DC-RED Arista PSU, 1RU, DC/DC, 2400W, FORWARD, 73.5MM FAN-7012H-RED Spare fan module for Arista 7000 Series 2RU High Speed Fan (front-to-rear airflow) KIT-7202 Spare tool-free accessory kit (v2) for Arista 2RU switches. 4-post mount. (2x C19-C20, 2m) KIT-7004-2UL Spare extended tool-free 4-post mount kit (v2) for 2-4RU Arista tool-free switches CAB-SYNCE-RJ Spare Time of Day adapter cable (USB-C to 2 x RJ-45) Note: - For the complete contents of each accessory kit, please use the lookup tool here: https://www.arista.com/en/support/product-documentation/accessory-kit-lookup - Front-to-rear means the air flows from the switch port side to the fan side. Rear to front means the air flows from the fan side to the switch port side.

7280R3A Series | Ordering Information 7280CR3A-24D12 Product Description DCS-7280CR3A-24D12-F Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, front to rear air, 2 x AC DCS-7280CR3A-24D12-R Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, rear to front air, 2 x AC DCS-7280CR3A-24D12# Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, configurable fans and psu DCS-7280CR3AM-24D12-F Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, TunnelSec, front to rear air, 2 x AC DCS-7280CR3AM-24D12-R Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, TunnelSec, rear to front air, 2 x AC DCS-7280CR3AM-24D12# Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, TunnelSec, configurable fans and psu DCS-7280CR3AK-24D12-F Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, large routes and TunnelSec, front to rear air, 2 x AC DCS-7280CR3AK-24D12-R Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, large routes and TunnelSec, rear to front air, 2 x AC DCS-7280CR3AK-24D12# Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, large routes and TunnelSec, configurable fans and psu DCS-7280CR3AK-24D12-S-F Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, large routes and TunnelSec, front to rear air, 2 x AC (secure boot enabled) DCS-7280CR3AK-24D12-S-R Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, large routes and TunnelSec, rear to front air, 2 x AC (secure boot enabled) DCS-7280CR3AK-24D12-S# Arista 7280R3A, 24x100GbE QSFP and 12x400GbE QSFP-DD switch router, large routes and TunnelSec, configurable fans and psu (secure boot enabled) PWR-1511-AC-RED Arista PSU, 1RU, AC/DC, 1500W, FORWARD, 73.5MM PWR-1511-AC-BLUE Arista PSU, 1RU, AC/DC, 1500W, REVERSE, 73.5MM PWR-1511-DC-RED Arista PSU, 1RU, DC/DC, 1500W, FORWARD, 73.5MM PWR-1511-DC-BLUE Arista PSU, 1RU, DC/DC, 1500W, REVERSE, 73.5MM FAN-7011H-F Spare fan module for Arista 7000 Series 1RU High Speed Fan (front-to-rear airflow) FAN-7011H-R Spare fan module for Arista 7000 Series 1RU High Speed Fan (rear-to-front airflow) KIT-7101-D Spare tool-free accessory kit (v3) for Arista switches. 4-post mount with deep chassis adapters. (2 x C13-C14, 2m) KIT-7101-RK Spare tool-free 4-post mount kit (v3). (Compatible with KIT-ADJ-RLR) KIT-7101-LD-RK Spare extended tool-free 4-post mount kit (v3), includes deep chassis adapters. (82 - 107cm / 32 - 42") KIT-ADJ-RLR Spare adapters for deep tool-free switches (pair) (Compatible with KIT 7101/7102 only) KIT-GND-EXT-1RU Arista 7000 Series 1RU Ground Extender Kit for NEBS compliance. CAB-SYNCE-RJ Spare Time of Day adapter cable (USB-C to 2 x RJ-45) Note: - For the complete contents of each accessory kit, please use the lookup tool here: https://www.arista.com/en/support/product-documentation/accessory-kit-lookup - Front-to-rear means the air flows from the switch port side to the fan side. Rear to front means the air flows from the fan side to the switch port side.

7280R3A Series | Ordering Information 7280CR3A-48D6 Product Description DCS-7280CR3A-48D6-F Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, front to rear air, 2 x AC DCS-7280CR3A-48D6-R Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, rear to front air, 2 x AC DCS-7280CR3A-48D6# Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, configurable fans and psu DCS-7280CR3AM-48D6-F Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, TunnelSec, front to rear air, 2 x AC DCS-7280CR3AM-48D6-R Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, TunnelSec, rear to front air, 2 x AC DCS-7280CR3AM-48D6# Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, TunnelSec, configurable fans and psu DCS-7280CR3AK-48D6-F Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, large routes and TunnelSec, front to rear air, 2 x AC DCS-7280CR3AK-48D6-R Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, large routes and TunnelSec, rear to front air, 2 x AC DCS-7280CR3AK-48D6# Arista 7280R3A, 48x100GbE QSFP and 6x400GbE QSFP-DD switch router, large routes and TunnelSec, configurable fans and psu PWR-1512-AC-RED Arista PSU, 1RU, AC/DC, 1500W, FORWARD, 73.5MM PWR-1512-AC-BLUE Arista PSU, 1RU, AC/DC, 1500W, REVERSE, 73.5MM PWR-1511-DC-RED Arista PSU, 1RU, DC/DC, 1500W, FORWARD, 73.5MM PWR-1511-DC-BLUE Arista PSU, 1RU, DC/DC, 1500W, REVERSE, 73.5MM FAN-7012H-RED Spare fan module for Arista 7000 Series 2RU High Speed Fan (front-to-rear airflow) FAN-7012H-BLUE Spare fan module for Arista 7000 Series 2RU High Speed Fan (rear-to-front airflow) KIT-7201 Spare tool-free accessory kit (v2) for Arista 2RU switches. 4-post mount. (2x C13-C14, 2m) KIT-7004-2UL Spare extended tool-free 4-post mount kit (v2) for 2-4RU Arista tool-free switches CAB-SYNCE-RJ Spare Time of Day adapter cable (USB-C to 2 x RJ-45) Note: - For the complete contents of each accessory kit, please use the lookup tool here: https://www.arista.com/en/support/product-documentation/accessory-kit-lookup - Front-to-rear means the air flows from the switch port side to the fan side. Rear to front means the air flows from the fan side to the switch port side.

7280R3A Series | Ordering Information 7280CR3A-72 Product Description DCS-7280CR3A-72-F Arista 7280R3A, 72x100GbE QSFP switch router, front to rear air, 2 x AC DCS-7280CR3A-72-R Arista 7280R3A, 72x100GbE QSFP switch router, rear to front air, 2 x AC DCS-7280CR3A-72# Arista 7280R3A, 72x100GbE QSFP switch router, configurable fans and psu DCS-7280CR3AM-72-F Arista 7280R3A, 72x100GbE QSFP switch router, TunnelSec, front to rear air, 2 x AC DCS-7280CR3AM-72-R Arista 7280R3A, 72x100GbE QSFP switch router, TunnelSec, rear to front air, 2 x AC DCS-7280CR3AM-72# Arista 7280R3A, 72x100GbE QSFP switch router, TunnelSec, configurable fans and psu DCS-7280CR3AK-72-F Arista 7280R3A, 72x100GbE QSFP switch router, large routes and TunnelSec, front to rear air, 2 x AC DCS-7280CR3AK-72-R Arista 7280R3A, 72x100GbE QSFP switch router, large routes and TunnelSec, rear to front air, 2 x AC DCS-7280CR3AK-72# Arista 7280R3A, 72x100GbE QSFP switch router, large routes and TunnelSec, configurable fans and psu PWR-1512-AC-RED Arista PSU, 1RU, AC/DC, 1500W, FORWARD, 73.5MM PWR-1512-AC-BLUE Arista PSU, 1RU, AC/DC, 1500W, REVERSE, 73.5MM PWR-1511-DC-RED Arista PSU, 1RU, DC/DC, 1500W, FORWARD, 73.5MM PWR-1511-DC-BLUE Arista PSU, 1RU, DC/DC, 1500W, REVERSE, 73.5MM FAN-7012H-RED Spare fan module for Arista 7000 Series 2RU High Speed Fan (front-to-rear airflow) FAN-7012H-BLUE Spare fan module for Arista 7000 Series 2RU High Speed Fan (rear-to-front airflow) KIT-7201 Spare tool-free accessory kit (v2) for Arista 2RU switches. 4-post mount. (2x C13-C14, 2m) KIT-7004-2UL Spare extended tool-free 4-post mount kit (v2) for 2-4RU Arista tool-free switches CAB-SYNCE-RJ Spare Time of Day adapter cable (USB-C to 2 x RJ-45) Note: - For the complete contents of each accessory kit, please use the lookup tool here: https://www.arista.com/en/support/product-documentation/accessory-kit-lookup - Front-to-rear means the air flows from the switch port side to the fan side. Rear to front means the air flows from the fan side to the switch port side.

7280R3A Series | Ordering Information 7280CR3A-32S Product Description DCS-7280CR3A-32S-F Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, front to rear air, 2 x AC DCS-7280CR3A-32S-R Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, rear to front air, 2 x AC DCS-7280CR3A-32S# Arista 7280R3A, 7 32x100GbE/2x400G QSFP switch router, configurable fans and psu DCS-7280CR3AM-32S-F Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, TunnelSec, front to rear air, 2 x AC DCS-7280CR3AM-32S-R Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, TunnelSec, rear to front air, 2 x AC DCS-7280CR3AM-32S# Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, TunnelSec, configurable fans and psu DCS-7280CR3AK-32S-F Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, large routes and TunnelSec, front to rear air, 2 x AC DCS-7280CR3AK-32S-R Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, large routes and TunnelSec, rear to front air, 2 x AC DCS-7280CR3AK-32S# Arista 7280R3A, 32x100GbE/2x400G QSFP switch router, large routes and TunnelSec, configurable fans and psu PWR-1512-AC-RED Arista PSU, 1RU, AC/DC, 1500W, FORWARD, 73.5MM PWR-1512-AC-BLUE Arista PSU, 1RU, AC/DC, 1500W, REVERSE, 73.5MM PWR-1511-DC-RED Arista PSU, 1RU, DC/DC, 1500W, FORWARD, 73.5MM PWR-1511-DC-BLUE Arista PSU, 1RU, DC/DC, 1500W, REVERSE, 73.5MM FAN-7011H-F Spare fan module for Arista 7000 Series 1RU High Speed Fan (front-to-rear airflow) FAN-7011H-R Spare fan module for Arista 7000 Series 1RU High Speed Fan (rear-to-front airflow) KIT-7101 Spare tool-free accessory kit (v3) for Arista switches. 4-post mount. (2 x C13-C14, 2m) KIT-7101-RK Spare tool-free 4-post mount kit (v3). (Compatible with KIT-ADJ-RLR) KIT-7101-LD-RK Spare extended tool-free 4-post mount kit (v3), includes deep chassis adapters. (82 - 107cm / 32 - 42") KIT-GND-EXT-1RU Arista 7000 Series 1RU Ground Extender Kit for NEBS compliance. CAB-SYNCE-RJ Spare Time of Day adapter cable (USB-C to 2 x RJ-45) Note: - For the complete contents of each accessory kit, please use the lookup tool here: https://www.arista.com/en/support/product-documentation/accessory-kit-lookup - Front-to-rear means the air flows from the switch port side to the fan side. Rear to front means the air flows from the fan side to the switch port side.

7280R3A Series | Ordering Information 7280SR3A-48YC8 Product Description DCS-7280SR3A-48YC8-F Arista 7280R3A, 48x50GbE SFP and 6 x 200G QSFP switch router, front to rear air, 2 x AC DCS-7280SR3A-48YC8-R Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, rear to front air, 2 x AC DCS-7280SR3A-48YC8# Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, configurable fans and psu DCS-7280SR3AM-48YC8-F Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, TunnelSec, front to rear air, 2 x AC DCS-7280SR3AM-48YC8-R Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, TunnelSec, rear to front air, 2 x AC DCS-7280SR3AM-48YC8# Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, TunnelSec, configurable fans and psu DCS-7280SR3AK-48YC8-F Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, large routes and TunnelSec, front to rear air, 2 x AC DCS-7280SR3AK-48YC8-R Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, large routes and TunnelSec, rear to front air, 2 x AC DCS-7280SR3AK-48YC8# Arista 7280R3A, 48x50GbE SFP and 6x200G QSFP switch router, large routes and TunnelSec, configurable fans and psu PWR-1011-AC-RED Arista PSU, 1RU, AC/DC, 1000W, FORWARD, 73.5MM PWR-1011-AC-BLUE Arista PSU, 1RU, AC/DC, 1000W, REVERSE, 73.5MM PWR-1011-DC-RED Arista PSU, 1RU, DC/DC, 1000W, FORWARD, 73.5MM PWR-1011-DC-BLUE Arista PSU, 1RU, DC/DC, 1000W, REVERSE, 73.5MM FAN-7011H-F Spare fan module for Arista 7000 Series 1RU High Speed Fan (front-to-rear airflow) FAN-7011H-R Spare fan module for Arista 7000 Series 1RU High Speed Fan (rear-to-front airflow) KIT-7101 Spare tool-free accessory kit (v3) for Arista switches. 4-post mount. (2 x C13-C14, 2m) KIT-7101-RK Spare tool-free 4-post mount kit (v3). (Compatible with KIT-ADJ-RLR) KIT-7101-LD-RK Spare extended tool-free 4-post mount kit (v3), includes deep chassis adapters. (82 - 107cm / 32 - 42") KIT-GND-EXT-1RU Arista 7000 Series 1RU Ground Extender Kit for NEBS compliance. CAB-SYNCE-RJ Spare Time of Day adapter cable (USB-C to 2 x RJ-45) Note: - For the complete contents of each accessory kit, please use the lookup tool here: https://www.arista.com/en/support/product-documentation/accessory-kit-lookup - Front-to-rear means the air flows from the switch port side to the fan side. Rear to front means the air flows from the fan side to the switch port side.

7280R3A Series | Ordering Information Software Licenses Product Description LIC-FIX-4-E Enhanced L3 License for Arista Group 4 Fixed switches, (BGP , OSPF, ISIS, PIM, NAT) LIC-FIX-4-V Virtualization license for Group 4 Arista Fixed switches (VMTracer and VXLAN) LIC-FIX-4-V2 EOS Extensions, Security and Partner Integration license for Arista Group 4 Fixed switches LIC-FIX-4-Z Monitoring & Automation license for Arista Group 4 Fixed switches (ZTP , LANZ, TapAgg, API, Time-stamping, OpenFlow) LIC-FIX-4-FLX-L FLX-Lite License for Arista Fixed switches Group 4 - Full Routing Up to 246K Routes, EVPN, VXLAN, SR, base MPLS LSR (no TE or link/node protection) LIC-FIX-4-FLX FLX License for Arista Fixed Group 4 - Full Routing upto 2M Routes, >24K ACL, EVPN, VXLAN, SR, Adv MPLS-LER/LSR, with TE & link/node protection LIC-FIX-4-MACSEC MACSEC Encryption License for Arista Group 4 Fixed switches, MACSEC capable ports LIC-FIX-4-ENCR Enhanced Security Encryption License for Arista Group 4 Fixed switches, Encryption capable ports, TunnelSec, IPsec and MACsec LIC-FIX-5-E Enhanced L3 License for Arista Group 5 Fixed switches, (BGP , OSPF, ISIS, PIM, NAT) LIC-FIX-5-V Virtualization license for Group 5 Arista Fixed switches (VMTracer and VXLAN) LIC-FIX-5-V2 EOS Extensions, Security and Partner Integration license for Arista Group 5 Fixed switches LIC-FIX-5-Z Monitoring & Automation license for Arista Group 5 Fixed switches (ZTP , LANZ, TapAgg, API, Time-stamping, OpenFlow) LIC-FIX-5-FLX-L FLX-Lite License for Arista Fixed switches Group 5 - Full Routing Up to 256K Routes, EVPN, VXLAN, SR, base MPLS LSR (no TE or link/node protection) LIC-FIX-5-FLX FLX License for Arista Fixed Group 5 - Full Routing upto 2M Routes, >24K ACL, EVPN, VXLAN, SR, Adv MPLS-LER/LSR, with TE & link/node protection LIC-FIX-5-MACSEC MACSEC Encryption License for Arista Group 5 Fixed switches, MACSEC capable ports LIC-FIX-5-ENCR Enhanced Security Encryption License for Arista Group 5 Fixed switches, Encryption capable ports, TunnelSec, IPsec and MACsec

7280R3A Series | Contact Information Headquarters

5453 Great America Parkway

Santa Clara, California 95054 408-547-5500 Support support@arista.com 408-547-5502 866-476-0000 Sales sales@arista.com 408-547-5501 866-497-0000 Copyright 2024 Arista Networks, Inc. The information contained herein is subject to change without notice. Arista, the Arista logo and EOS are trademarks of Arista Networks. Other product or service names may be trademarks or service marks of others. www.arista.com October 28th, 2024 04-0040-23 Warranty The Arista 7280R3A Series come with a one-year limited hardware warranty, which covers parts, repair, or replacement with a 10 business day turn-around after the unit is received. Service and Support Support services including next business day and 4-hour advance hardware replacement are available. For service depot locations, please see: http://www.arista.com/en/service