Brand: Arista | Category: Network Switches
SKU: ARIS-DCS7700R438PEF | Part #: DCS-7700R4-38PE-F | MPN: DCS-7700R4-38PE-F
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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.
| 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 |
| Forwarding Architecture | Non-blocking Clos fabric with per-destination ECMP and adaptive load balancing across fabric nodes |
| Buffer Architecture | Deep Virtual Output Queue (VOQ) buffering per priority class to eliminate head-of-line blocking in all-to-all AI workloads |
| RDMA Support | RoCEv2 (RDMA over Converged Ethernet v2) with hardware-accelerated lossless transport |
| Congestion Management | DCQCN (Data Center Quantized Congestion Notification), ECN marking, PFC (Priority Flow Control) per-priority |
| Routing Protocols | BGP (with BGP-LU, BGP EVPN), IS-IS, OSPFv2/v3, BFD for fast failure detection |
| Overlay Support | VXLAN, EVPN multi-homing, SR-MPLS, segment routing IPv6 (SRv6) |
| Management Interfaces | eAPI (REST), NETCONF/YANG, OpenConfig, gRPC/gNMI, SNMP v2c/v3, Syslog |
| Telemetry | Nanosecond-granularity streaming telemetry via gNMI/gNOI; CloudVision integration for fabric-wide AI flow analytics |
| Operating System | Arista EOS (Extensible Operating System) — single unified OS image across all DDC nodes |
| Redundancy | N+1 and N+N supervisor redundancy; hitless failover; non-stop forwarding (NSF); distributed fabric node resilience |
| Power Architecture | Distributed power shelves per node; hot-swappable PSUs; 48V DC and AC input options |
| Cooling | Front-to-rear airflow per node; hot-swappable fan modules; variable speed control via EOS thermal management |
| Form Factor | Distributed 1U/2U nodes; rack-composable fabric — no centralized chassis midplane |
| Standards Compliance | IEEE 802.3 (Ethernet), IEEE 802.1Q, IEEE 802.1Qbb (PFC), IEEE 802.1Qaz (ETS), RoCEv2 (IETF RFC 5040) |
| Launch Date | Q4 2025 |
Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.
| Brand | Arista |
| Category | Network Switches |
| SKU | ARIS-DCS7700R438PEF |
| Part Number | DCS-7700R4-38PE-F |
| Condition | New |
| 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 |
| Forwarding Architecture | Non-blocking Clos fabric with per-destination ECMP and adaptive load balancing across fabric nodes |
| Buffer Architecture | Deep Virtual Output Queue (VOQ) buffering per priority class to eliminate head-of-line blocking in all-to-all AI workloads |
| RDMA Support | RoCEv2 (RDMA over Converged Ethernet v2) with hardware-accelerated lossless transport |
| Congestion Management | DCQCN (Data Center Quantized Congestion Notification), ECN marking, PFC (Priority Flow Control) per-priority |
| Routing Protocols | BGP (with BGP-LU, BGP EVPN), IS-IS, OSPFv2/v3, BFD for fast failure detection |
| Overlay Support | VXLAN, EVPN multi-homing, SR-MPLS, segment routing IPv6 (SRv6) |
| Management Interfaces | eAPI (REST), NETCONF/YANG, OpenConfig, gRPC/gNMI, SNMP v2c/v3, Syslog |
| Telemetry | Nanosecond-granularity streaming telemetry via gNMI/gNOI; CloudVision integration for fabric-wide AI flow analytics |
| Operating System | Arista EOS (Extensible Operating System) — single unified OS image across all DDC nodes |
| Redundancy | N+1 and N+N supervisor redundancy; hitless failover; non-stop forwarding (NSF); distributed fabric node resilience |
| Power Architecture | Distributed power shelves per node; hot-swappable PSUs; 48V DC and AC input options |
| Cooling | Front-to-rear airflow per node; hot-swappable fan modules; variable speed control via EOS thermal management |
| Form Factor | Distributed 1U/2U nodes; rack-composable fabric — no centralized chassis midplane |
| Standards Compliance | IEEE 802.3 (Ethernet), IEEE 802.1Q, IEEE 802.1Qbb (PFC), IEEE 802.1Qaz (ETS), RoCEv2 (IETF RFC 5040) |
| Launch Date | Q4 2025 |
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.
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.
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.