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7280R3 Series

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7280R3 Series - Arista Networks


Arista 7280R3 Series Universal Leaf and IP Storage Networks


Designed for next-generation Cloud, Content Delivery, IP storage, leaf, and spine networks and Data Center Interconnect the Arista 7280R3 Series of fixed switches combine a proven architecture with dynamic and deep buffering for lossless forwarding with high-density 100G and 400G Ethernet, internet scale table sizes, and rich L2 and L3 features that are space and power efficient for modern networks.

Advanced EOS® features for visibility, telemetry, network monitoring, VXLAN network virtualization, and rich automation are combined with extensive hardware resources. A choice of density and interface types allows the 7280R to address the myriad different applications and traffic patterns found in modern data centers.


Arista 7280R3 Advantages:


  • Unparalleled Performance with Dynamic Deep Buffers and VOQ for Lossless forwarding
  • Flexible design choices for 10G/25G/40G/50G/100G and 400G
  • Arista FlexRoute™ and EOS NetDB™ for internet peering with high density and low power
  • Flexible and scalable network policy control
  • Embedded Accelerated sFlow and IPFIX for high capacity network security and application monitoring
  • Flexible pipeline for programmable features including Algorithmic ACLs and Inband Network Telemetry for flow and packet forensics
  • EOS Open Programmability for Advanced Traffic Control, Provisioning, and Monitoring at all layers
  • 4th generation of deep buffer fixed systems with consistent features and a proven architecture


7280R3 Series - Arista Networks 




The Arista 7280R3 Series FlexRoute engine and EOS NetDB provide the scalability to support the Internet IP routing scale with the lowest power consumption and fast convergence scaling to 2.5M routes with a choice of flexible forwarding profiles for a wide variety of network roles.


Arista Algorithmic ACLs enable flexible high scale access controls with expanded pattern matching, combined with sFlow sampling of all interfaces at the full forwarding capacity while providing additional capabilities for filtering.



Flexible Solutions with 400G


  • Up to 24 ports of 400G in 1RU, with 9.6Tbps of wire-speed performance
  • High-Density wire-speed 1RU 32 port 100G systems with 4 400G uplinks
  • A broad range of 1RU and 2RU systems with a combination of 400G and 100G systems for Universal Leaf and Spine designs
  • Internet Peering Scalability with Arista FlexRoute
  • High Bandwidth Ultra-deep packet buffer up to 16GB per system


Arista EOS


  • Open Extensibility and Programmability
  • Software Driven Cloud Networking
  • Fine-grain modular protected memory architecture
  • Access to Linux tools
  • In-service-software-patches and Self-healing stateful fault repair (SFR)


Datacenter Optimized


  • Flexible choice of 400G and 100G interfaces with OSFP and QSFP-DD
  • Under 11W per 100G port with rich features
  • Up to 256 Way Multi-Pathing over L2 and L3
  • Power-efficient for the lower total cost of ownership
  • Redundant and hot-swap power and cooling
  • NEBS Compliant for Tier1 Service Providers


Rich Feature Sets and Open Programmability


  • Comprehensive switching and routing feature set with rapid convergence
  • Segment Routing and EVPN Services for IX Providers and Cloud WAN
  • IPv6 Overlay and Underlay support
  • Large scale full-featured IPv4 / IPv6, ACLs, and QoS
  • VXLAN and 256-way multi-pathing
  • LANZ for Microburst Detection
  • VXLAN and EOS Network Tracers
  • CloudVision® for Workflow Automation and Orchestration
  • Accelerated sFlow for high capacity network security and application monitoring
  • Inband Network Telemetry for flow and packet forensics at scale
  • Extensive and flexible counters for real-time monitoring and troubleshooting 



Arista 7280R3 Series Technical Specifications

The Arista 7280R3 series is a set of purpose-built 100/400G fixed configuration 1RU and 2RU systems designed for the highest performance environments such as Cloud DC, Content Delivery, IP storage, Enterprise leaf and spine networks and Data Center Interconnect and IP Peering. Wire-speed L2 and L3 forwarding are combined with advanced features for network virtualization, open monitoring and network analysis, resiliency, and architectural flexibility with deterministic performance. Deep packet buffers and large routing tables allow for Internet peering applications and the broad range of interfaces and density choice provides deployment flexibility.

All Arista 7280R3 Series support FlexRoute™ engines providing the scalability to support deployment as a routing platform with Internet scale routing. Arista FlexRoute along with EOS NetDB™ enables innovations and convergence not natively available in merchant chipsets. The 7280R3K Series supports a series of flexible profiles that leverage common resources for different network roles including up to 2.5M IP routes.


7280R3 Benefits


  • Standards-based high-density 400G and 100G switches ideal for future proof designs and high bandwidth needs such as in High-Performance Storage or Content Delivery Networks (CDNs)
  • Dynamic deep buffers in a fixed form factor make for an ideal spine switch where lossless performance and in-cast traffic is a concern such as in data analytics and IP storage
  • Directly connected 40G and 50G attached storage systems, requiring high performance and predictable latency
  • Streaming network state for advanced analytics with CloudVision®
  • Network-wide virtualization platform for next-generation cloud bursting with wire-speed VXLAN routing
  • Hardware-assisted PTP enables accurate timing solutions across Ethernet-based networks without costly investment in separate timing networks
  • Unique monitoring and provisioning features – LANZ, DANZ, AEM, IEEE 1588 PTP, ZTP, VM Tracer, VXLAN, and eAPI
  • Comprehensive L2 and L3 feature set for open multi-vendor networks with no proprietary lock-in
  • Accelerated sFlow and IPFIX for network forensics
  • Large scale L2 and L3 table resources allow deployment flexibility in both large L2 and L3 environments with any-workload suitability
  • NEBS compliance and DC power supplies designed for service provider environments



Arista 7280R3 Series

400G 7280PR3 Series and 7280DR3 Series
  • 400G 1RU and 2RU systems
  • High-Density 400G ports with OSFP or QSFP-DD for flexible 100G, 50G and 400G support
  • Maximum of 192 ports of 50GbE or 96 ports of 100G
  • Up to 9.6Tbps of wire-speed performance with 16GB of ultra-deep and dynamic buffers
  • Up to 1.3M IPv4/v6 routes with FlexRoute
  • Up to 2.5M IPv4/v6 routes with the 7280PR3K and 7280DR3K Series and FlexRoute
  • Scalable Accelerated sFlow on all models
7280CR3 Series
  • 100G 1RU and 2RU systems with a choice of port combinations with QSFP100 optics and cables
  • 100G 1RU and 2RU systems with a choice of port combinations with QSFP100 optics and cables
  • Up to 96 ports of 100G in 2RU and 48 ports in 1RU
  • Flexible interface combinations for 10/25/40/50/100G and 400G
  • Up to 9.6Tbps of wire-speed performance with 16GB of buffer
  • Up to 1.3M IPv4/v6 routes with FlexRoute
  • Up to 2.5M IPv4/v6 routes with the 7280CR3K Series and FlexRoute
  • Scalable Accelerated sFlow on all models



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


7280R3 Series

7280R3K Series
MAC Addresses 448K 128K 768K 160K 1.4M
IPv4 Host Routes 896K 256K 1.4M 320K 2.8M
IPv6 Unicast Host Routes 224K 64K 368K 80K 736K
IPv4 Unicast LPM Routes 704K 1.3M 1.2M 2.5M 128K
IPv6 Unicast LPM Routes 235K 440K 411K 821K 42K
Multicast Routes 448K 128K 736K 160K 1.4M
ACL Entries 24K 24K 24K 24K 24K
Maximum ECMP 256-Way 256-Way 256-Way 256-Way 256-Way



Arista 7280R3 Series Comparisons

The following tables compare Arista 7280R3 Series models. For a complete catalog of Arista 7000 Series switch specifications click here.


7280R3 Series 10/40/100/400G Systems


7508 Specifications

7504 Specifications

7280CR2-60 Specifications

7280CR2K-60 Specifications

7280CR2AK-30 Specifications

Description 24 x OSFP 24 x QSFP-DD 32 x QSFP
4 x OSFP
32 x QSFP
96 x QSFP
Max 400G Ports 24 24 4 4 0
Max 200G Ports 48 48 8 8 48
Max 100G Ports 96 96 48 48 96
Max 50G Ports 192 192 96 96 192
Max 40G Ports 24 24 36 36 96
Max 25G Ports 96 96 96 96 192
Max 10G Ports 96 96 96 96 192
L2/3 Throughput 9.6 Tbps 9.6 Tbps 4.8 Tbps 4.8 Tbps 9.6 Tbps
L2/3 PPS 4 Bpps 4 Bpps 2 Bpps 2 Bpps 4 Bpps
Latency 3.8usec 3.8usec 3.8usec 3.8usec 3.8usec
Typical Power Draw 650W 650W 535W 535W 1700W
Total System Buffer 16GB 16GB 8GB 8GB 16GB
Rack Units 1 1 1 1 2
CloudVision Yes Yes Yes Yes Yes
Smart System Upgrade* Yes Yes Yes Yes Yes
ZTP Yes Yes Yes Yes Yes
VM Tracers Yes Yes Yes Yes Yes
AEM Yes Yes Yes Yes Yes
VXLAN Yes Yes Yes Yes Yes
LANZ* Yes Yes Yes Yes Yes
Accelerated sFlow Yes Yes Yes Yes Yes
Airflow Front to Rear Front to Rear and Rear to Front Front to Rear

* Not yet supported in EOS


Have more questions about Arista Networks Cloud Switching and Routing products and solutions? Call us at 410-583-1701 or email us at questions@pulsesupply.com.