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Modular Data Center Switch Router

Arista 7800R Series Modular Data Center Switches

The Arista 7800R3 Series of purpose built modular switches deliver the industry's highest performance scaling to 460 Tbps of system throughput to meet the needs of the largest scale data centers.

7800R3 Series

The Arista 7800R3 Series of purpose built modular switches deliver the industry's highest performance scaling to 460 Tbps of system throughput to meet the needs of the largest scale data centers. They combine 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 7800R3 can be deployed in a wide range of open networking solutions including large scale layer 2 and layer 3 cloud designs, overlay networks, virtualized or traditional enterprise data center networks. Deep packet buffers and large routing tables allow for internet peering and secure data center interconnect applications and provides complete deployment flexibility. Available in a modular system design, as a choice of 16, 12, 8 and 4 slots, the Arista 7800R3 is the next generation of the 7500 Series and delivers a consistent architecture offering the same deep buffer, non-blocking VOQ capabilities while setting a new standard for performance, density, reliability, and power efficiency. The 7800R3 can support up to 576 ports of wire speed 400G and 768 ports of 100G and offers over 460 Tbps of total capacity with a broad choice of line cards. Standards based OSFP and QSFP-DD 400G and QSFP 100G interfaces support a choice of speeds including 50G and 200G providing unparalleled flexibility and the ability to seamlessly transition to next generation Ethernet performance.

7800R3 Series overview

Features and Benefits

The capabilities that set 7800R3 Series apart.

System Scale and Performance

230 Tbps (460 Tbps FDX) fabric capacity

Up to 96 Billion packets per second

Fully Scheduled Lossless Architecture

Cell-spraying fabric for 100% efficiency

Fully scheduled credit control

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Technical Specifications

Hardware and software metrics extracted directly from the official Arista datasheet.

  • Supervisor slots
    2
  • Linecard Slots
    16
  • Fabric Module Slots
    6
  • Power Supply Slots (Max Power Budget)
    24 (72 kW)
  • Physical Dimensions (HxWxD)
    55.6 x 17.4 x 37" (141.3 x 44.1 x 94 cm)
  • Rack Units
    32
  • Weight (Chassis Only)
    483 lbs (219 kg)
  • Weight (Full System)
    1523 lbs (691 kg)
  • Maximum 50G Density
    4608
  • Maximum 100G Density
    2304

  • Supervisor slots
    2
  • Linecard Slots
    16
  • Fabric Module Slots
    12
  • Power Supply Slots (Max Power Budget)
    24 (72 kW)
  • Physical Dimensions (HxWxD)
    55.3 x 17.4 x 40" (140.4 x 44.1 x 100.4 cm)
  • Rack Units
    32
  • Weight (Chassis Only)
    640 lbs (291 kg)
  • Weight (Full System)
    1580 lbs (717 kg)
  • Maximum 50G Density
    4608
  • Maximum 100G Density
    2304

  • Supervisor slots
    2
  • Linecard Slots
    12
  • Fabric Module Slots
    6
  • Power Supply Slots (Max Power Budget)
    18 (54 kW)
  • Physical Dimensions (HxWxD)
    39.9 x 17.4 x 37" (101.3 x 44.1 x 94 cm)
  • Rack Units
    23
  • Weight (Chassis Only)
    355 lbs (161 kg)
  • Weight (Full System)
    1082 lbs (490 kg)
  • Maximum 50G Density
    3456
  • Maximum 100G Density
    1728

  • Supervisor slots
    2
  • Linecard Slots
    8
  • Fabric Module Slots
    6
  • Power Supply Slots (Max Power Budget)
    12 (36 kW)
  • Physical Dimensions (HxWxD)
    27.7 x17.4 x 37.0" (70.3 x 44.1 x 94 cm)
  • Rack Units
    16
  • Weight (Chassis Only)
    222 lbs (101 kg)
  • Weight (Full System)
    717 lbs (325 kg)
  • Maximum 50G Density
    2304
  • Maximum 100G Density
    1152

Compare 7800R3 Series Series

Select the right scale for your network workload.

Compare 7800R3 Series Series — capacity and port configuration by model.
Model Name Max Capacity Port Config Action
DCS-7816L 460 Tbps / 96 Bpps Max 576 x 400G / 2304 x 100G / 4608 x 50G Get Quote
DCS-7816 460 Tbps / 96 Bpps Max 576 x 400G / 2304 x 100G / 4608 x 50G Get Quote
DCS-7812 345 Tbps / 72 Bpps Max 432 x 400G / 1728 x 100G / 3456 x 50G Get Quote
DCS-7808 230 Tbps / 48 Bpps Max 288 x 400G / 1152 x 100G / 2304 x 50G Get Quote
DCS-7804 115 Tbps / 24 Bpps Max 144 x 400G / 576 x 100G / 1152 x 50G Get Quote

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