• Gray metal server rack back side with black ventilation slots and mounting brackets for Arista 7800R3A 36-port line card
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Arista

Arista DCS-7800R3AK-36DM2-LC | 7800R3A 36-Port 400GbE QSFP-DD Line Card, MACsec

Arista DCS-7800R3AK-36DM2-LC | 7800R3A 36-Port 400GbE QSFP-DD Line Card, MACsec

DCS-7800R3AK-36DM2-LC

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Description

The Arista 7800R3A Series 36-port 400GbE QSFP-DD Line Card is a high-density data centre module engineered for the Arista 7800R3A chassis platform, delivering wire-speed 400 Gigabit Ethernet connectivity across 36 QSFP-DD ports. Designed for hyperscale and enterprise core deployments, this line card combines massive forwarding capacity with enhanced MACsec encryption (Enh MACsec) and a large routing table, making it ideal for high-security, large-scale IP/MPLS network environments requiring advanced route scale and hardware-based encryption at line rate.

Equipped with an integrated CPU and support for expanded routing tables, this module enables sophisticated control-plane operations and deep BGP table support, critical for internet edge and peering deployments. The enhanced MACsec capability provides IEEE 802.1AE-compliant encryption without sacrificing throughput, meeting the security demands of financial, government, and cloud service provider networks. Order through iptrading.com.au — your local source for enterprise-grade networking solutions.

Features

- 36 x 400GbE QSFP-DD ports delivering industry-leading line card density for hyperscale environments
- Enhanced MACsec encryption at full line rate — no throughput penalty for secured traffic
- Large-scale routing table support for full BGP internet table deployments and complex IP/MPLS topologies
- Integrated CPU enables advanced control-plane processing and in-service software upgrades (ISSU)
- QSFP-DD interface supports flexible breakout: 4x100GbE or 2x200GbE per port
- Designed for Arista EOS — consistent single operating system across the entire Arista portfolio
- Supports advanced telemetry and streaming network analytics via Arista DANZ
- Hot-swappable line card design for non-disruptive maintenance in production environments

Warranty

Arista hardware products come with a 1-year limited hardware warranty, covering defects in materials and workmanship under normal use.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Arista products. Contact our team to explore options that align with your organisation's needs.
https://www.arista.com/assets/data/pdf/Warranty.pdf

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

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- Platform compatibility: Arista 7800R3A Series chassis
- Port density: 36 x 400GbE QSFP-DD
- Form factor: Line card module (LC)
- Encryption: Enhanced MACsec (IEEE 802.1AE) at line rate
- Routing table: Large route scale (extended FIB/RIB capacity)
- Integrated CPU for advanced control-plane processing
- Interface type: QSFP-DD (supports 400G, 4x100G, 2x200G breakout modes)

FAQs

Q: What chassis is the DCS-7800R3AK-36DM2-LC compatible with?
A: This line card is designed for the Arista 7800R3A Series modular chassis. It is not compatible with other Arista chassis generations such as the 7800R or 7800R3 without the R3A platform designation.

Q: What does 'Enhanced MACsec' mean on this line card?
A: Enhanced MACsec (Enh MACsec) refers to hardware-accelerated IEEE 802.1AE encryption that operates at full 400GbE line rate, without performance degradation. This is critical for securing high-volume data flows in financial services, government, and service provider environments.

Q: Does this line card support port breakout configurations?
A: Yes. The QSFP-DD ports on the 7800R3A line card support flexible breakout options including 4x100GbE and 2x200GbE per port, allowing organisations to optimise port density for their specific cabling and device requirements.

Q: What is the significance of the 'large routes' specification?
A: The large route table variant provides an expanded Forwarding Information Base (FIB) and Routing Information Base (RIB), enabling the card to handle full internet BGP routing tables — essential for internet exchange points, peering fabrics, and large enterprise WAN edge deployments.

Q: Can I purchase the DCS-7800R3AK-36DM2-LC in Australia through IP Trading?
A: Yes. IP Trading (iptrading.com.au) is a local Australian B2B IT hardware reseller stocking Arista networking equipment. Contact the team directly for pricing, lead times, and configuration advice on the 7800R3A line card.

Q: Is this line card suitable for data centre core and internet edge deployments?
A: Absolutely. The combination of 36 x 400GbE ports, large routing tables, an integrated CPU, and enhanced MACsec encryption makes this module purpose-built for hyperscale data centre core switching, internet peering, and high-security network edge applications.

Datasheet

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