7280R3AM ARISTA | Alldatasheet

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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 e fficient 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 bu ffers and large routing tables allow for internet peering and secure data center interconnect applications and provide complete deployment flexibility. 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. Product Highlights Performance

  • 7280R3A: 144 x 100G or 36 x 400G
  • High density 100G and 400G
  • Flexible 10G, 25G, 100G, 200G and 400G support
  • Up to 14.4 Tbps system capacity
  • Up to 5.4 billion packets per second
  • QSFP , OSFP and QSFP-DD: for 10-400G
  • 400G ZR and ZR+ Support
  • 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 (IEEE 1588)
  • Open programmable APIs (JSON-RPC, NETCONF) for provisioning, telemetry, path selection/topology discovery Data Center Optimized Design
  • 16 GB Ultra-deep packet buffer
  • Virtual Output Queues per port to eliminate head of line blocking
  • Over 93% efficient power supplies
  • Redundant & hot-swap power and fans 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 240GB 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++ 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. Arista 7289R3A: 144 ports of 100G or 36 ports of 400G 7280R3A Modular Data Center Switch Router Data Sheet

The modular Arista 7280R3A is a high performance system that delivers 14.4Tbps of system forwarding and up to 5.4 Bpps with two high capacity, deep buffer, packet processors in a configurable system. Nine interface module slots enable flexible configurations of up to 36 ports of 400G, 144 ports of 100G, or up to 144 ports of 25G in a compact 4RU system. Designed with ease of maintenance operations and flexibility in mind, the 7280R3A modular platform can be deployed as a common building block for multiple network roles, with the ability to deploy the right interface mix in each deployment. The system also shares its power supplies and high performance IO modules with the Arista 7358X4 for simple migration, reconfiguration and sparing. The 7280R3A modular provides a choice of three levels of scale and functionality. The Standard (R3A), Encryption (R3AM) and Large Scale (R3AK) Switch Cards each deliver high performance with a comprehensive feature set for enterprise and service providers. Suited for both leaf or spine deployment in modern large scale networks, addressing the challenges of increasing network capacity and efficiency through lower power, enhanced automation and advances in scalability. The modular 7280R3A is designed around the 7289R3A switch card (7289R3A-SC), that is fully connected to 9 I/O module slots delivering 3.2Tbps of system capacity to each slot with 16GB deep packet bu ffers for superior burst absorption. The supervisor module runs Arista Extensible Operating System (EOS) on an eight core CPU with 64GB of memory with the scalability to support demanding control plane workloads. The removable interface modules provide for mix and match of interface types and density including 25G, 100G, 200G and 400G with each module supporting a range of interface speeds using industry standard optics and cables. Each IO module connects directly to the switch card without adding any oversubscription. All components of the system including the switch card are removable for ease of maintenance and simplifying upgrades. The system supports up to 4 high e fficiency hot-swappable AC or DC power supplies, providing su fficient power for both current and future needs, with both grid and power supply redundancy to eliminate downtime when replacing power supplies. High performance fan modules deliver resilient data center optimized system cooling from front to rear. DCS-7289-SUP-D Supervisor Module Eight core CPU and 64GB memory for high per formance control plane, Ethernet and management ports with optional SSD for storage. Arista 7280R3A 9-Slot System System Front (144 ports of 100G) System Rear (Front to Rear Airflow) DCS-7368-4D QSFP-DD - 4 ports of 400G with QSFP-DD optics and cables and the use of existing 100G optics and cables. DCS-7358-16C QSFP100 - 16 ports of 100G, up to 8 ports of 200G mode (alternate ports) DCS-7368-4P OSFP - 4 ports of 400G with OSFP optics and cables, and the use of existing 100G optics and cables. DCS-7368-16S SFP28 - 16 ports of 25G with support for 25G and 10G on all ports. 7280R3A Modular Series | Platform Overview

7280R3A Modular 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 with 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, offering 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 Modular 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) Arista’s hardware derived Precision Time Protocol solution provides a robust mechanism for accurate in-band time distribution in high performance environments, o ffering both Boundary and Transparent clock modes. The system clock can be synchronized using IEEE 1588 PTP . 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 Accelerated sFlow 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. 7280R3A Modular Series | Platform Overview

7280R3A Modular Series | Platform Overview 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 25G, 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 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:
  • N+N 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 System Scalability Switch Model 7280R3A Modular Series 7280R3AK Modular 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 | 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

Power Supply Slots 4 (N+N Redundant) Fan Modules 5 (N+1 Redundant) Size (HxWxD) including ejectors and handles 7” x 17.4” x 27.1” (17.9 x 44.2 x 68.83 cm) Rack Space 4 RU Weight (Chassis only) 30 lbs (13.6 kg) Weight (Fully configured system) 105 lbs (47.62 kg) Typical Power Consumption 1244 W 2/3 Maximum Power Consumption 1927 W 4 Power Supplies PWR-1900 AC or DC EOS Feature Licenses LIC-FIX-5 Minimum EOS 4.28.2 Supervisor Module DCS-7289-SUP-D DCS-7289-SUPS-D CPU Eight-Core x86 System Memory 64 Gigabytes 10/100/1000 Mgmt Ports 1 1G SFP Mgmt Port (SX, LX) 1 RS-232 Serial Ports 1 (RJ-45) USB Ports 1 SSD Storage 240 GB Typical/Max Power Draw 35 W / 55 W Size (HxWxD) 4.0” x 1.0” x 17.0” (10.2 x 2.43 x 43.2 cm) Weight 2.5 lbs (1.14 kg) Minimum EOS 4.28.2 1. Maximum port values depend on system-wide limits and EOS support, may require the use of break-outs and are subject to transceiver/cable capabilities. It may not be possible to achieve full breakout on all line card ports simultaneously. Detailed information can be found here. 2. System configuration: 1 x Sup, 1 x Switch Card, 8 x 16C line cards, 5 x fans, 2 x power supplies 3. Typical power measured at 25C ambient with 50% load (Excluding optics and cables) 4. Maximum power measured with 2.5W SFP+ / 4.5W QSFP100 / 20W OSFP or QSFP-DD on all ports, adjust as appropriate for lower power optics Interface Modules DCS-7368-16S DCS-7358-16C DCS-7368-4D DCS-7368-4P Ports 16 x SFP28 16 x QSFP28 4 x QSFP-DD 4 x OSFP Max 400GbE Ports — — 4 4 Max 200GbE Ports — 4 8 8 Max 100GbE Ports — 16 16 16 Max 25GbE Ports 1 16 20 16 16 Max 10GbE Ports 1 16 20 16 16 Typical/Max Power Draw 2 36 W 3/ 88 W 4 83 W 3 / 140 W 4 72 W 3 / 140 W 4 72 W 3 / 140 W 4 Size (HxWxD) 6.7” x 1.7” x 9.5” (17 x 4.4 x 24.2 cm) 6.7” x 1.7” x 9.5” (17 x 4.4 x 24.2 cm) 6.7” x 1.7” x 9.5” (17 x 4.4 x 24.2 cm) 6.7” x 1.7” x 9.5” (17 x 4.4 x 24.2 cm) Chassis Support DCS-7289-CH Airflow Option Front to Rear Only Minimum EOS 4.28.2 7280R3A Modular Series | Technical Specifications

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 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) Power Supply Specifications Power Supply PWR-1900AC PWR-1900-DC Output Power 2000 W 1900 W Input Voltage 200-240 V AC 40-72 V DC Typical Input Current 11.2 - 9.5 A 44 A Max (-48 V) Input Frequency 50/60 Hz DC Input Connector IEC 60320 C20 AWG #6 Max Efficiency (Typical) 93% Platinum 95% Switch Card DCS-7289R3A-SC DCS-7289R3AM-SC DCS-7289R3AK-SC Packet Buffer Memory 16 GB Maximum Throughput 14.4 Tbps / 5.4 Bpps Latency From 3.8 us Size (HxWxD) 4.8” x 17.0” x 17.8” (12..2 x 43.2 x 45.2 cm) Weight 36.0 lbs (16.3 kg) Typical/Max Power Draw 650 W / 950 W Chassis Support DCS-7289-CH Minimum EOS 4.28.2 7280R3A Modular Series | Technical Specifications

Supported Optics and Cables 1 Interface Type 400G OSFP ports 400GBASE-CR8 OSFP to OSFP: 1m-3m lengths 400GBASE-AOC OSFP to OSFP: 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-2FR4 2km 2 x Duplex SM 400GBASE-LR4 10km Duplex SM 400GBASE-PLR4 10km Parallel SM 400GBASE-ZR 120km (with optical amplification) 200GBASE-CR4 OSFP to 2xQSFP: 1m to 3m lengths 200GBASE-SR4 100m (using OSFP-400G-SR8) 200GBASE-FR4 2km (using OSFP-400G-2FR4) 100GBASE-CR2 OSFP to 4xQSFP: 1m to 3m lengths 100GBASE-CR4 2 OSFP to 2xQSFP: 1m to 3m lengths 50GBASE-CR OSFP to 8xSFP: 1 to 3m lengths 50GBASE-CR2 2 OSFP to 4xQSFP: 1m to 3m lengths 25GBASE-CR 2 OSFP to 8xSFP: 1m to 3m lengths 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 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 Modular Series supports a wide range of 10G to 400G pluggable optics and cables. For details about the di fferent optical modules and the minimum EOS Software release required for each of the supported optical modules, visit: https://www.arista.com/en/products/transceivers-cables. 7280R3A Modular Series | Optics

7280R3A Modular Series | Optics Supported Optics and Cables 1 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 100GbE 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 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 25GBASE-CR QSFP to SFP25: 1m to 5m lengths Supported Optics and Cables 1 10GbE SFP+ ports 10GBASE-CR SFP+ to SFP+: 0.5m-5m lengths 10GBASE-AOC SFP+ to SFP+: 3m-30m lengths 10GBASE-SRL 100m OM3 /150m OM4 Duplex MMF 10GBASE-SR 300m OM3 / 400m OM4 Duplex MMF 10GBASE-LRL 1km Duplex SM 10GBASE-LR 10km Duplex SM 10GBASE-ER 40km Duplex SM 10GBASE-ZR 80km Duplex SM 10GBASE-T Up to 30m over Cat6a 10GBASE-DWDM 80km Duplex SM 25GbE 25G SFP Ports 25GBASE-CR SFP25 to SFP25: 1m-5m lengths 25GBASE-AOC SFP+ to SFP+: 3m-30m lengths 25GBASE-MR-XSR 25G: 200m OM3 / 300m OM4 Duplex MMF 10G: 300m OM3 / 400m OM4 Duplex MMF 25GBASE-MR-SR 25G: 70m OM3 / 100m OM4 Duplex MMF 10G: 300m OM3 / 400m OM4 Duplex MMF 25GBASE-SR 70m OM3 / 100m OM4 Duplex MMF 25GBASE-LR 10km Duplex SM 25GBASE-MR-LR 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

Product Number Product Description DCS-7289R3A-BND-D-F Arista 7289R3 System bundle. Includes 7289 chassis, AC PS, Fans, Supervisor and R3A Switch Card (front to rear air) DCS-7289R3AM-BND-D-F Arista 7289R3 System bundle. Includes 7289 chassis, AC PS, Fans, Supervisor and R3AM Switch Card (front to rear air) DCS-7289R3AK-BND-D-F Arista 7289R3 System bundle. Includes 7289 chassis, AC PS, Fans, Supervisor and R3AK Switch Card (front to rear air) DCS-7289R3A-BND-D-DC-F Arista 7289R3 System bundle. Includes 7289 chassis, DC PS, Fans, Supervisor and R3A Switch Card (front to rear air) DCS-7289R3AM-BND-D-DC-F Arista 7289R3 System bundle. Includes 7289 chassis, DC PS, Fans, Supervisor and R3AM Switch Card (front to rear air) DCS-7289R3AK-BND-D-DC-F Arista 7289R3 System bundle. Includes 7289 chassis, DC PS, Fans, Supervisor and R3AK Switch Card (front to rear air) DCS-7289R3A-SC 7289R3A Switch Card for 7289 chassis, R3A-SC, includes Fans, Spare DCS-7289R3AM-SC 7289R3A Switch Card with Enh MACsec for 7289 chassis, R3AM-SC, includes Fans, Spare DCS-7289R3AK-SC 7289R3A Switch Card with Route Scale and Enh MACsec for 7289 chassis, R3AK-SC, includes Fans, Spare DCS-7289-CH Arista 7289 empty chassis, 1 supervisor slot, 9 module slots DCS-7289-SUP-D Supervisor module for 7289 Series, with SSD, Spare DCS-7289-SUPS-D Supervisor-S module for 7289 Series, with SSD, Spare DCS-7368-4P Arista 7368X-4P module for 7358X, 7368X and 7289R Series, 4 port 400GbE OSFP (Spare) DCS-7368-4D Arista 7368X-4D module for 7358X, 7368X and 7289R Series, 4 port 400GbE QSFP-DD (Spare) DCS-7358-16C Arista 7358X-16C module for 7358X, 7368X and 7289R Series, 16 port 100GbE QSFP (Spare) DCS-7368-16S Arista 7368X-16S module for 7358X, 7368X and 7289R Series, 16 port 25GbE SFP (Spare) LIC-FIX-5-E Enhanced L3 License for Arista Group 5 Fixed switches, (BGP , OSPF, ISIS, PIM, NAT) LIC-FIX-5-Z Monitoring & Automation license for Arista Group 5 Fixed switches (ZTP , LANZ, TapAgg, OpenFlow) 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 3 Fixed switches 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 up to 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 Modular Series | Ordering Information

The Arista 7280R3A Modular switch comes 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 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 04-0039-08 Optional Components and Spares FAN-7002H-F Spare high speed fan module for Arista 7358X/7368X/7289R3A switches (front to rear airflow) PWR-1900AC-F Spare 1900 Watt AC power supply for Arista 7358X/7368X/7289R3A Switches (front-to-rear airflow) PWR-1900-DC-F Spare 1900W DC Power Supply for 7358X/7368X/7289R3A Switches (front to rear airflow) DCS-7368-PCVR Blank Cover for 7358X/7368X/7289R3A Power Supply Slot DCS-7368-LCVR Blank cover for 7358X/7368X/7289R3A module slot KIT-7368 Spare accessory kit for Arista 7358X, 7368X and 7289R Series 4U switches. 4-post mount. (2x C19-C20, 2m) CAB-C19-C20 Power cord C19 to C20 (2m) CAB-C19-L6-20 Power cord C19 to L6-20 (2.5m) 7280R3A Modular Series | Contact Information