Arista DCS-7280CR3MK-32D4S-F | 7280R3 32x100G + 4x400G QSFP-DD Switch, MACsec, 2x AC

SKU:DCS-7280CR3MK-32D4S-F

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Description

The Arista 7280R3 with encryption (7280CR3MK) is a 1RU fixed-configuration data centre switch router built for leaf, spine, data centre interconnect and internet peering roles. It combines wire-speed TunnelSec encryption (MACsec, IPsec and VXLANsec) with deep buffers and large routing tables, making it well suited to secure DCI and large layer 2 and layer 3 cloud designs.

This DCS-7280CR3MK-32D4S-F provides 32 x 100G QSFP100 ports and 4 x 400G QSFP-DD ports, with 4.8 Tbps of wire-speed throughput, 2 Bpps packet forwarding, 8 GB of packet buffer and latency from 3.8 us. It is the large route variant with front-to-rear airflow and 2 x AC hot-swap power supplies in a 1+1 arrangement, plus 3 hot-swap fans in an N+1 arrangement. The 100G ports can also run as 40G, 4x10G, 4x25G or 2x50G using breakout.

It runs Arista EOS in Group 3 fixed-switch licensing. Encryption needs the LIC-FIX-3-ENCR licence file. The 400G ports accept 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR optics, and the switch is managed with CloudVision.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Wire-speed TunnelSec encryption with MACsec, IPsec and VXLANsec using AES-256-GCM
- Deep packet buffers with Virtual Output Queues per port to avoid head-of-line blocking
- Large route tables: over 2M IPv4 unicast routes, up to 256K MAC addresses, algorithmic ACLs for 100K rules
- Cloud-grade routing including EVPN, LDP, RSVP-TE, SR-TE, FRR and TI-LFA
- Breakout support: 100G ports can run as 40G, 4x10G, 4x25G or 2x50G
- Arista EOS single binary image with CloudVision, LANZ microburst detection, ZTP and accelerated sFlow
- Programmable management through JSON-RPC and NETCONF APIs
- Redundant hot-swap power supplies and fans

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Model: 7280CR3MK-32D4S
- Ports: 32 x QSFP100, 4 x QSFP-DD
- Throughput (FDX): 4.8 (9.6) Tbps
- Packets per second: 2 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 8 GB
- System memory: 64 GB
- CPU: Quad-Core x86
- Flash storage: 8 GB
- SSD storage: 120 GB
- Max 400G ports: 4
- Max 100G ports: 48
- Max 50G ports: 96
- Max 40G ports (using QSFP+): 36
- Max 25/10G ports: 96
- Encryption: TunnelSec on QSFP100 ports (MACsec, IPsec, VXLANsec, AES-256-GCM)
- Management ports: 1 x 100/1000, 1 x RS-232 serial (RJ-45), 1 x USB
- Hot-swap power supplies: 2 x PWR-1011 AC (1+1 redundant)
- PWR-1011AC input: 100-240V AC, 50/60Hz, 1100W output, 93% Platinum efficiency
- Hot-swap fans: 3 x FAN-7011H (N+1 redundant)
- Airflow: front to rear
- Typical/max power draw: 535 W / 851 W and 545 W / 875 W
- Size (W x H x D): 43.99 x 4.37 x 55.83 cm, 1RU
- Weight: 12.27 kg
- Operating temperature: 0 to 40 C
- EOS feature licence group: Group 3

FAQs

Q: Does the encryption need a licence?
A: Yes. TunnelSec and MACsec are licensed EOS features on this model and need the LIC-FIX-3-ENCR licence file. Other Group 3 licences such as LIC-FIX-3-E for Enhanced L3 are optional.

Q: Which power supplies and fans does this SKU use?
A: It uses 2 x PWR-1011 AC hot-swap power supplies in a 1+1 redundant arrangement and FAN-7011H fan trays. Airflow on the -F SKU is front to rear.

Q: Which optics work in the 400G ports?
A: The 4 x QSFP-DD ports accept 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR, plus 200G and breakout to 100G, 50G and 25G.

Q: How does this differ from the FLX variants of the 7280CR3MK?
A: This is the large route variant without FLX licensing. The FLX variants are separate SKUs. Both share the same 32 x 100G and 4 x 400G port layout.

Q: Can the 100G ports run at lower speeds?
A: Yes. The QSFP100 ports support 100G and 40G, and breakout to 4x10G, 4x25G or 2x50G.