• Arista dcs-7289r3am-sc modular network switch card with macsec encryption featuring a sleek silver chassis and green-lit ports
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Arista

Arista DCS-7289R3AM-SC | 7280R3A Modular Switch Card with MACsec Encryption

DCS-7289R3AM-SC

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Description

The Arista DCS-7289R3AM-SC is a high-performance switch card designed for the 7289 modular chassis, delivering 14.4 Tbps of packet processing capacity with enhanced MACsec encryption capabilities. This R3AM variant provides wire-speed AES-256-GCM encryption across 9 I/O module slots, supporting up to 36x 400G or 144x 100G interfaces depending on module configuration. Built for data center spine, leaf, and DCI deployments requiring secure, lossless forwarding with deep packet buffers and internet-scale routing.

Features

Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking
- 16GB deep packet buffers with intelligent dynamic allocation
- Wire-speed AES-256-GCM encryption across all ports without performance penalty
- IEEE 802.1AE MACsec for link-layer point-to-point encryption
- IPsec and VXLANsec for multi-hop encrypted tunnels over Layer 3
- FlexRoute engine for Internet-scale routing (256K+ routes)
- Accelerated sFlow for granular network telemetry and visibility
- Algorithmic ACLs for flexible, scalable access control and policy enforcement
- MLAG and ECMP support for active-active Layer 2 and Layer 3 designs
- EVPN-VXLAN overlay networking with hardware VTEP support
- Full non-blocking architecture with 3.2 Tbps per module slot
- Hot-swappable fan modules and field-replaceable components
- Arista EOS with stateful switchover and in-service software upgrades
- Standards-based support for 10G, 25G, 40G, 50G, 100G, 200G, and 400G
- Precision timing support with IEEE 1588 PTP and SyncE

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

System Capacity: 14.4 Tbps full-duplex switching capacity
- Packet Processing: Up to 5.4 billion packets per second
- Module Slots: Fully connected to 9 I/O module slots
- Slot Capacity: 3.2 Tbps per I/O module slot
- Packet Buffers: 16GB deep packet buffers for superior burst absorption
- Encryption: Wire-speed AES-256-GCM encryption with IEEE 802.1AE MACsec
- Encryption Modes: MACsec (Layer 2), IPsec, and VXLANsec support
- Form Factor: Switch card module for Arista 7289 chassis (4RU)
- Cooling: Integrated hot-swappable fan modules included
- Supervisor Support: Works with 8-core CPU supervisor with 64GB memory
- Routing Scale: Supports over 256K routes with FlexRoute engine
- Management: Arista EOS with CLI, API, and automation support
- Compatible Interfaces: 25G SFP, 100G QSFP, 400G OSFP/QSFP-DD modules

FAQs

Q: What is the difference between R3A, R3AM, and R3AK switch cards?
A: The R3A is the standard switch card, R3AM (this model) adds enhanced MACsec hardware encryption capabilities, and R3AK provides both large-scale routing (5M+ routes) and encryption. The R3AM variant offers wire-speed AES-256-GCM encryption without the extended routing table scale of the R3AK.

Q: Which chassis is this switch card compatible with?
A: The DCS-7289R3AM-SC is designed exclusively for the Arista 7289 modular chassis (DCS-7289-CH), a 4RU system with 1 supervisor slot and 9 I/O module slots. It is not compatible with other Arista chassis platforms.

Q: What encryption protocols does the R3AM switch card support?
A: The R3AM supports IEEE 802.1AE MACsec for Layer 2 encryption, IPsec (RFC 4303) for Layer 3 encrypted tunnels, and VXLANsec for overlay network encryption. All encryption is performed at line rate using AES-256-GCM without performance degradation.

Q: Can I mix different I/O modules in the same chassis?
A: Yes, the 7289R3A modular system supports mix-and-match deployment of different I/O modules across the 9 available slots, allowing combinations of 25G SFP, 100G QSFP, and 400G OSFP/QSFP-DD modules based on your connectivity requirements.

Q: Is a separate license required to enable MACsec encryption?
A: Yes, Arista encryption features require an EOS license to enable MACsec, IPsec, and VXLANsec functionality. Contact your Arista representative or authorized reseller for licensing information specific to your deployment.

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