Arista EOS (Extensible Operating System) with modular architecture and in-service software upgrades
- VXLAN and EVPN support for Layer 2 and Layer 3 overlay networking and data center interconnect (DCI)
- Advanced routing protocols: OSPF, IS-IS, BGP, PIM, and segment routing (SR) with up to 256K routes
- MPLS label switching (LSR) for carrier-grade networking and service provider environments
- FlexRoute engine with flexible table allocation for MAC, ARP, routing, and host entries
- Virtual output queuing (VoQ) architecture for zero head-of-line blocking and predictable low latency
- Deep packet buffering (8 GB) for burst absorption and lossless forwarding in high-traffic scenarios
- Precision timing with IEEE 1588 PTP and SyncE support, OCXO oscillator, and PPS/10M/ToD inputs
- Accelerated sFlow for wire-speed flow sampling at full forwarding capacity (2.7 Bpps)
- Inband Network Telemetry (INT) for per-flow monitoring of latency, drops, congestion, and path visibility
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 redundancy
- Equal-Cost Multi-Path (ECMP) routing for scalable Layer 3 leaf-spine designs
- IPv4 and IPv6 unicast and multicast routing with PIM-SM, PIM-SSM, and IGMP snooping
- Access Control Lists (ACLs) with up to 100K entries per forwarding engine for policy enforcement
- VLAN support for Layer 2 segmentation and IEEE 802.1Q tagging
- Spanning Tree Protocol (STP, RSTP, MSTP) for loop prevention in Layer 2 topologies
- Hot-swappable redundant power supplies and fan modules for high availability
- Front-to-rear airflow design for efficient cooling in hot-aisle/cold-aisle data center layouts
- RADIUS and TACACS+ authentication for centralized access control and security
- Zero Touch Provisioning (ZTP) for automated deployment and configuration
- REST API and CloudVision integration for programmable network automation and telemetry