Arista DCS-7020R4-48Y-4QC-R | 7020R4 48-Port 25G Switch, 4x 100G QSFP

Q: What is the airflow direction of the DCS-7020R4-48Y-4QC-R?
A: The -R suffix indicates rear-to-front airflow, where air flows from the fan side to the switch port side. This configuration is ideal for hot-aisle/cold-aisle data center deployments with port-side exhaust into the hot aisle.

Q: What routing protocols does the Arista 7020R4 support?
A: Running Arista EOS, the 7020R4 supports comprehensive Layer 2 and Layer 3 protocols including BGP, OSPF, ISIS, EVPN, VXLAN, MPLS, Segment Routing, PIM multicast, ECMP, and advanced QoS capabilities for demanding data center and service provider environments.

Q: Can this switch be managed with Arista CloudVision?
A: Yes, the 7020R4 integrates natively with Arista CloudVision for centralized provisioning, streaming telemetry, change management, and network-wide visibility. It also supports eAPI, CLI, SNMP, and OpenConfig for flexible management options.

Q: What is the Virtual Output Queueing architecture?
A: The 7020R4 uses Virtual Output Queueing (VOQ) with deep packet buffers to eliminate head-of-line blocking and provide deterministic low-latency performance. This architecture is ideal for demanding environments with congestion, large flows, Big Data, media streaming, and high-performance storage applications.

Q: Does this model support encryption?
A: The DCS-7020R4-48Y-4QC-R supports TunnelSec wire-speed encryption at Layer 2 and Layer 3. For enhanced MACsec hardware encryption, the DCS-7020R4M variant is available with line-rate encryption capabilities suitable for secure multi-tenant and compliance-sensitive environments.