What chassis are compatible with DCS-7800-SUP-D?

The DCS-7800-SUP-D supervisor module fits Arista DCS-7804 (4 line card slots, 115Tbps) and DCS-7808 (8 line card slots, 230Tbps) chassis platforms. Each chassis provides 2 dedicated supervisor slots for redundancy, supporting configurations up to 576x 400G ports with 96Bpps system throughput.

What management interfaces does the supervisor provide?

Includes 1x RJ-45 console port, 1x 1GbE SFP management port, and 2x USB 2.0 ports for storage and recovery. Supports out-of-band management via EOS with Zero Touch Provisioning, SNMP, sFlow, and IEEE 1588 PTP precision timing synchronization.

How does supervisor redundancy work?

Dual supervisors operate in active/standby mode with patented stateful failover technology preserving all routing sessions, ARP tables, and forwarding states during switchover. Hitless operation maintains traffic flow with sub-second convergence, eliminating network disruptions during maintenance or failures.

What scale does the control plane support?

64GB DRAM enables massive routing tables supporting thousands of BGP/OSPF routes across multiple VRFs. Handles 230Tbps fabric coordination with real-time telemetry collection and deep integration with line cards providing 14.4Tbps per slot and 24GB buffers.

Is the supervisor hot-swappable?

Yes, fully hot-swappable with automatic failover to redundant supervisor. Stateful synchronization ensures zero packet loss during replacement. Compatible with chassis power shelves delivering up to 36kW total budget and front-to-rear airflow for optimal thermal management.

What software runs on the supervisor?

Arista EOS provides unified control plane with VXLAN, EVPN, MLAG, and advanced QoS. Supports eAPI, gNMI telemetry, and CloudVision integration for network-wide automation and analytics across multi-chassis domains.

DCS-7800-SUP-D - Arista DCS-7800-SUP-D 7800R3 Series Supervisor Module

Name: Arista DCS-7800-SUP-D 7800R3 Series Supervisor Module
Brand: Arista
SKU: DCS-7800-SUP-D
Price: 21465 USD
Availability: InStock

DCS-7800-SUP-D - Arista DCS-7800-SUP-D 7800R3 Series Supervisor Module | US IT Hardware

Product overview

The Arista DCS-7800-SUP-D Supervisor Module serves as the central control plane for Arista 7800R3 Series modular data center switches, including DCS-7804 and DCS-7808 chassis. It provides high-performance system management, routing protocol processing, and coordination between line cards, fabric modules, and management interfaces. Featuring a multi-core x86 CPU with 64GB DRAM and 4GB Flash, the supervisor handles demanding control tasks including dynamic routing (OSPF, BGP), system telemetry, and Zero Touch Provisioning (ZTP). Dual supervisor support ensures high availability with stateful failover. Designed for hyperscale environments, it supports platforms delivering up to 230Tbps (460Tbps FDX) fabric capacity, 96Bpps throughput, and densities up to 576x 400G ports. The module integrates with front-to-rear airflow chassis, enabling efficient cooling in high-density racks. Key applications include cloud-scale spine/leaf architectures, large-scale routing domains, and VXLAN overlays with MLAG for multi-chassis redundancy. Its resilient architecture minimizes downtime through redundant supervisors, advanced monitoring, and EOS software extensibility for custom network automation.

x86 CPU 64GB DRAM 4GB Flash.
Dual HA supervisors stateful failover.
230Tbps fabric 96Bpps EOS control.
DCS-7804/7808 chassis 2 slots.
ZTP sFlow PTP MLAG BGP/OSPF.
Front-rear airflow 400G ready.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	DCS-7800-SUP-D
Brand	Arista
Condition	Refurbished
Module Type	Supervisor engine module for 7800R3 Series
Routing Support	OSPF, BGP, RIP, static routing protocols
Control Functions	Centralized packet management ¦ Telemetry collection
High Availability	Dual supervisor support with stateful failover
Software Platform	Arista EOS with ZTP, sFlow, 1588 PTP
Redundancy Features	MLAG, LACP, hitless supervisor failover

Storage

Compatible systems

Native to Arista 7800R3 modular chassis platforms. Runs EOS exclusively with full line card and fabric integration.

Arista 7800R3 Series
Model: DCS-7808
Form factor: 8-Slot Modular Chassis
Generation: R3
Requires 2x DCS-7800-SUP-D for redundancy
Arista 7800R3 Series
Model: DCS-7804
Form factor: 4-Slot Modular Chassis
Generation: R3
2 supervisor slots standard

Best for

Hyperscale Data Centers
Spine/leaf architectures in cloud providers using EOS with BGP-EVPN and VXLAN for massive scale tenant isolation and MLAG redundancy.
Enterprise Core Routing
Centralized control for campus core networks running OSPF, BGP with large routing tables and sFlow telemetry for traffic analytics.
AI/ML Training Clusters
RoCEv2 lossless fabrics coordinating 400G line cards for GPU clusters with PTP precision timing and deep buffers.
Service Provider Edge
400G ZR/ZR+ deployments for metro aggregation with IPsec encryption and scalable L3 tables for peering.

Details

Shipping, warranty & returns

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System Memory	64GB DRAM ¦ 4GB Flash storage

CPU Architecture	Multi-core Hyper-threaded x86 CPU

System Scale	Supports 230Tbps fabric ¦ 96Bpps throughput
Fabric Capacity	Supports up to 460Tbps FDX switching

Power Integration	Integrates with 3000W hot-swap PSUs

Physical Characteristics

LED Indicators	System status, power, alarm, locator LEDs
Chassis Integration	Coordinates line cards, fabric modules, power/cooling
Deployment Platform	Arista DCS-7804 and DCS-7808 chassis ¦ 2 supervisor slots

Arista DCS-7800-SUP-D 7800R3 Series Supervisor Module

Product overview

Featuring

Storage

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Processor

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions