Arista 5000 Series AI Networking DDC Distributed Switch

Arista 5000 Series AI Networking DDC Distributed Switch

Brand: Arista | Category: Network Switches

SKU: ARIS-DCS7700R438PEF | Part #: DCS-7700R4-38PE-F | MPN: DCS-7700R4-38PE-F

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About the Arista 5000 Series AI Networking DDC Distributed Switch

The Arista 5000 Series AI Networking DDC (Distributed Disaggregated Chassis) Distributed Switch represents a fundamental rearchitecting of how hyperscale AI back-end fabrics are constructed. Rather than relying on monolithic chassis hardware, the 5000 Series disaggregates the control, fabric, and line-card functions across physically separate but logically unified nodes, enabling operators to scale bandwidth and port density independently without forklift upgrades. The platform is purpose-built for Etherlink, Arista's AI-optimized Ethernet transport layer that delivers lossless, low-latency, high-throughput connectivity demanded by GPU-to-GPU collective communications in large language model training and inference clusters. Each distributed node participates in a shared forwarding domain managed by a unified EOS (Extensible Operating System) control plane, presenting the entire fabric as a single logical switch to orchestration systems.

Ideal for

  • Large-scale LLM and foundation model training clusters requiring low-latency, lossless GPU-to-GPU collective communication across thousands of H100, H200, or next-generation AI accelerator nodes
  • Hyperscale AI inference farms where distributed switch fabrics provide non-blocking bandwidth between GPU pools and high-throughput CPU front-end servers handling request scheduling
  • Multi-tenant AI cloud infrastructure where disaggregated chassis nodes enable independent scaling of specific rack rows without affecting the broader fabric operational state
  • High-performance computing (HPC) workloads combining MPI-based scientific simulation with AI co-processing, leveraging the unified Ethernet fabric for both workload types simultaneously
  • AI factory build-outs requiring staged capacity expansion — operators can begin with a smaller set of DDC nodes and add line-card sleds or spine nodes non-disruptively as GPU cluster footprint grows
  • Enterprise AI data centers standardizing on open Ethernet networking to avoid proprietary interconnect lock-in while achieving performance parity for transformer model training and fine-tuning operations

Technical specifications

ManufacturerArista
Product SeriesArista 5000 Series
ArchitectureDistributed Disaggregated Chassis (DDC) — decoupled spine, fabric, and line-card nodes unified under single EOS control plane
AI Networking TechnologyEtherlink — Arista's AI-optimized Ethernet transport for GPU collective communications
Target Interface Speed800GbE per port (400GbE and 200GbE backward compatible)
Fabric ConnectivityHigh-speed internal fabric interconnect between DDC nodes via 800G or multi-lane optical links
Forwarding ArchitectureNon-blocking Clos fabric with per-destination ECMP and adaptive load balancing across fabric nodes
Buffer ArchitectureDeep Virtual Output Queue (VOQ) buffering per priority class to eliminate head-of-line blocking in all-to-all AI workloads
RDMA SupportRoCEv2 (RDMA over Converged Ethernet v2) with hardware-accelerated lossless transport
Congestion ManagementDCQCN (Data Center Quantized Congestion Notification), ECN marking, PFC (Priority Flow Control) per-priority
Routing ProtocolsBGP (with BGP-LU, BGP EVPN), IS-IS, OSPFv2/v3, BFD for fast failure detection
Overlay SupportVXLAN, EVPN multi-homing, SR-MPLS, segment routing IPv6 (SRv6)
Management InterfaceseAPI (REST), NETCONF/YANG, OpenConfig, gRPC/gNMI, SNMP v2c/v3, Syslog
TelemetryNanosecond-granularity streaming telemetry via gNMI/gNOI; CloudVision integration for fabric-wide AI flow analytics
Operating SystemArista EOS (Extensible Operating System) — single unified OS image across all DDC nodes
RedundancyN+1 and N+N supervisor redundancy; hitless failover; non-stop forwarding (NSF); distributed fabric node resilience
Power ArchitectureDistributed power shelves per node; hot-swappable PSUs; 48V DC and AC input options
CoolingFront-to-rear airflow per node; hot-swappable fan modules; variable speed control via EOS thermal management
Form FactorDistributed 1U/2U nodes; rack-composable fabric — no centralized chassis midplane
Standards ComplianceIEEE 802.3 (Ethernet), IEEE 802.1Q, IEEE 802.1Qbb (PFC), IEEE 802.1Qaz (ETS), RoCEv2 (IETF RFC 5040)
Launch DateQ4 2025

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.

Technical Specifications

BrandArista
CategoryNetwork Switches
SKUARIS-DCS7700R438PEF
Part NumberDCS-7700R4-38PE-F
ConditionNew
Product SeriesArista 5000 Series
ArchitectureDistributed Disaggregated Chassis (DDC) — decoupled spine, fabric, and line-card nodes unified under single EOS control plane
AI Networking TechnologyEtherlink — Arista's AI-optimized Ethernet transport for GPU collective communications
Target Interface Speed800GbE per port (400GbE and 200GbE backward compatible)
Fabric ConnectivityHigh-speed internal fabric interconnect between DDC nodes via 800G or multi-lane optical links
Forwarding ArchitectureNon-blocking Clos fabric with per-destination ECMP and adaptive load balancing across fabric nodes
Buffer ArchitectureDeep Virtual Output Queue (VOQ) buffering per priority class to eliminate head-of-line blocking in all-to-all AI workloads
RDMA SupportRoCEv2 (RDMA over Converged Ethernet v2) with hardware-accelerated lossless transport
Congestion ManagementDCQCN (Data Center Quantized Congestion Notification), ECN marking, PFC (Priority Flow Control) per-priority
Routing ProtocolsBGP (with BGP-LU, BGP EVPN), IS-IS, OSPFv2/v3, BFD for fast failure detection
Overlay SupportVXLAN, EVPN multi-homing, SR-MPLS, segment routing IPv6 (SRv6)
Management InterfaceseAPI (REST), NETCONF/YANG, OpenConfig, gRPC/gNMI, SNMP v2c/v3, Syslog
TelemetryNanosecond-granularity streaming telemetry via gNMI/gNOI; CloudVision integration for fabric-wide AI flow analytics
Operating SystemArista EOS (Extensible Operating System) — single unified OS image across all DDC nodes
RedundancyN+1 and N+N supervisor redundancy; hitless failover; non-stop forwarding (NSF); distributed fabric node resilience
Power ArchitectureDistributed power shelves per node; hot-swappable PSUs; 48V DC and AC input options
CoolingFront-to-rear airflow per node; hot-swappable fan modules; variable speed control via EOS thermal management
Form FactorDistributed 1U/2U nodes; rack-composable fabric — no centralized chassis midplane
Standards ComplianceIEEE 802.3 (Ethernet), IEEE 802.1Q, IEEE 802.1Qbb (PFC), IEEE 802.1Qaz (ETS), RoCEv2 (IETF RFC 5040)
Launch DateQ4 2025

Frequently Asked Questions about Arista 5000 Series AI Networking DDC Distributed Switch

What does the Arista 5000 Series AI Networking DDC Distributed Switch do?

The Arista 5000 Series AI Networking DDC Distributed Switch is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.

What are the headline specs of the Arista 5000 Series AI Networking DDC Distributed Switch?

Key specifications for the Arista 5000 Series AI Networking DDC Distributed Switch: new condition; manufacturer Arista; product series Arista 5000 Series; architecture Distributed Disaggregated Chassis (DDC) — decoupled spine, fabric, and line-card nodes unified under single EOS control plane; ai networking technology Etherlink — Arista's AI-optimized Ethernet transport for GPU collective communications; target interface speed 800GbE per port (400GbE and 200GbE backward compatible); fabric connectivity High-speed internal fabric interconnect between DDC nodes via 800G or multi-lane optical links. Manufacturer part number DCS-7700R4-38PE-F. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.

Is the Arista 5000 Series AI Networking DDC Distributed Switch compatible with my infrastructure?

The Arista 5000 Series AI Networking DDC Distributed Switch interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.