Arista DCS-7280CR3AM-48D6-F | 7280R3A 48-Port 100G Switch, 6x 400G, TunnelSec, 2x AC

SKU:DCS-7280CR3AM-48D6-F

Stock Status: Enquire

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Description

The Arista 7280R3A is a 2RU fixed data centre switch router built for large-scale layer 2 and layer 3 cloud, enterprise and service provider networks. It suits leaf and spine roles, Internet peering and border routing, data centre interconnect with 400G-ZR, carrier edge VPN services and 5G or metro aggregation.

This R3AM model provides 48 x 100G QSFP ports and 6 x 400G QSFP-DD ports, plus 1 x OSFP-LS port for dense 400G-ZR deployment. It delivers 7.2 Tbps (14.4 Tbps FDX) throughput at 2.7 Bpps with 8 GB of packet buffer and latency from 3.8 us. TunnelSec provides line-rate encryption (MACsec, IPsec and VXLANsec) on all ports. This variant uses front-to-rear airflow and 2 x AC hot-swap power supplies in a 1+1 redundant configuration, with 4 hot-swap fans in an N+1 arrangement.

It runs Arista EOS (minimum 4.31.1). Encryption is an EOS licensed feature that requires a licence file to enable. The 400G ports support 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR, along with 200G, 100G, 50G and 25G breakout modes, while the 100G ports support a broad range of QSFP100 optics and 40G QSFP+ modules.

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

Features

- Virtual output queue (VOQ) architecture with deep packet buffers to eliminate head-of-line blocking
- TunnelSec line-rate AES-256-GCM encryption: MACsec, IPsec and VXLANsec from 10G to 400G
- Dense 400G-ZR and ZR+ DWDM support with a dedicated OSFP-LS port for the amplifier
- 512-way ECMP, MLAG, EVPN-VXLAN and EVPN-MPLS
- MPLS, Segment Routing, LDP, RSVP-TE and TI-LFA
- FlexRoute engine for Internet-scale routing tables in hardware
- PTP (IEEE 1588), SyncE and Class C timing support
- LANZ microburst detection, DANZ, Accelerated sFlow and Inband Network Telemetry
- CloudVision, Zero Touch Provisioning, eAPI, NETCONF, RESTCONF and gNMI
- Hot-swap redundant power supplies and fans, designed for NEBS

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

- Ports: 48 x QSFP100, 6 x QSFP-DD
- OSFP-LS ports: 1
- Max 400G ports: 6
- Max 100G ports: 68
- Max 50G ports: 114
- Max 40G ports (using QSFP+): 54
- Max 25/10G ports: 114
- Max total interfaces: 116
- Throughput (FDX): 7.2 (14.4) Tbps
- Packets per second: 2.7 Bpps
- Latency: From 3.8 us
- Encryption: All ports (TunnelSec, R3AM model)
- CPU: Eight-core x86
- System memory: 64 GB
- Packet buffer memory: 8 GB
- SSD storage: 120 GB
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management port: 1 x 100/1000
- Serial port: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 x hot-swap AC (1+1 redundant)
- Fans: 4 x hot-swap (N+1 redundant), FAN-7012H
- Airflow direction: Front to rear
- Rack units: 2 U
- Typical/max power draw: 388 W / 979 W (typical at 25 C ambient, 50% load on all ports, excludes transceivers)
- Size (W x H x D) inc. handles: 43.99 x 8.79 x 68.38 cm
- Weight: 22.04 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.1

FAQs

Q: Does the encryption need a licence?
A: Yes. This is the TunnelSec-capable R3AM model, but encryption is an EOS licensed feature that needs a licence file to enable it. The switch falls under EOS Feature Licenses Group 4.

Q: What power supplies does this model use?
A: It uses 2 x AC hot-swap power supplies in a 1+1 redundant configuration, listed as PWR-1512-AC. Each is rated 1500 W output on 200-240 VAC input with an IEC 60320 C14 connector.

Q: Which optics work in the 400G ports?
A: The 400G QSFP-DD ports support 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR (120km with amplification). They also support 200G, 100G, 50G and 25G breakout and cable modes.

Q: Which optics work in the 100G ports?
A: The 100G QSFP ports support 100GBASE-SR4, XSR4, SWDM4, SRBD, LR, LR4, LRL4, CWDM4, FR, DR, PSM4, ERL4, AOC and CR4, as well as 40G QSFP+ optics.

Q: What airflow direction does this SKU use?
A: The -F SKU uses front-to-rear airflow, cooled by the FAN-7012H fan tray with 4 hot-swap fans in an N+1 arrangement.