| Product Name |
Arista DCS-7280CR3K-32D4-R |
| Series |
Arista 7280R3 Series |
| Form Factor |
1RU Rack Mount |
| Dimensions (H × W × D) |
1.75" × 19" × 22" (4.4 cm × 48.3 cm × 55.8 cm) |
| Weight |
12.3 kg (27.0 lbs) |
| Airflow |
Rear-to-Front (indicated by -R suffix) |
| Ports - 100G QSFP28 |
32 × 100G (QSFP28), backward compatible with 40G |
| Ports - 400G QSFP-DD |
4 × 400G (QSFP-DD), backward compatible with 100G |
| Management Ports |
1 × RJ45 (10/100/1000 management), 1 × USB, 1 × Console RJ45 |
| Switching Capacity |
Up to 12.8 Tbps |
| Forwarding Rate |
Up to 4.8 Bpps |
| Latency |
As low as 3.8 microseconds |
| Packet Buffer |
64 MB integrated |
| MAC Addresses |
Up to 768K |
| IPv4 / IPv6 Routes (Host & LPM) |
Up to 2.7M IPv4 / 890K IPv6 |
| Multicast Routes |
Up to 128,000 |
| ECMP Paths |
Up to 256 |
| Access Control Lists (ACLs) |
Up to 24,000 entries |
| Virtual LANs (VLANs) |
Up to 4096 |
| Priority Queues |
8 per port |
| Max Ports per LAG |
Up to 32 |
| Max LAGs |
Up to 1152 |
| Jumbo Frame Support |
Up to 9216 bytes |
| Memory |
64 GB DRAM, 8 GB Flash |
| Storage |
120 GB SSD |
| Power Supplies |
Redundant, hot-swappable (AC/DC supported; exact type dependent on configuration) |
| Fan Trays |
Redundant, hot-swappable (reversible airflow options available) |
| Routing Protocols |
OSPF, OSPFv3, IS-IS, BGP, BFD, RIP, Static Routing, Policy-Based Routing, MPLS, Segment Routing (SR-MPLS and SRv6), EVPN, VRF |
| Multicast |
IGMPv2/v3, PIM-SM, PIM-SSM, MSDP |
| Layer 2 Protocols |
802.1Q VLAN, 802.1D STP, 802.1w RSTP, 802.1s MSTP, 802.3ad LACP |
| Security & Access Control |
RADIUS, TACACS+, AAA, DHCP Snooping, Port Security, Control Plane Protection, uRPF, MACsec (with supported optics) |
| QoS Features |
802.1p, DSCP-based, DWRR, Strict Priority, WRED, PFC, ETS |
| Monitoring & Telemetry |
sFlow, LANZ, Event Monitor, Advanced Event Management (AEM), CloudVision support |
| Automation & Management |
Zero Touch Provisioning (ZTP), Python scripting, eAPI, RESTful APIs, SNMP v1/v2/v3, CLI, Syslog, DHCP Relay, LLDP, Management VRF |
| Virtualization |
VXLAN, NVGRE, VM Tracer |
| Time Sync |
IEEE 1588v2 PTP, NTP |
| Compliance Standards |
IEEE 802.3ba (40/100G), IEEE 802.3bs (200/400G), IEEE 802.3by (25G), IEEE 802.1AB (LLDP), IEEE 1588v2 (PTP), RoHS, NEBS Level 3 (optional), UL, CE, FCC, VCCI |
| Operating Temperature |
0°C to 40°C (32°F to 104°F) |
| Storage Temperature |
-40°C to 70°C (-40°F to 158°F) |
| Humidity |
Operating: 5% to 95% (non-condensing) |
| Operating System |
Arista EOS (Extensible Operating System) |