• Silver-colored arista dcs-7800r3-48cq-lc rack-mounted network switches with 48 100g qsfp ports and ventilation slots
1 1

Arista

Arista DCS-7800R3-48CQ-LC | 7800R3 48-Port 100G QSFP Line Card, Modular

DCS-7800R3-48CQ-LC

Stock Status: Enquire

Request Quote
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

The Arista DCS-7800R3-48CQ-LC is a high-performance 48-port 100GbE QSFP line card designed for deployment in Arista 7800R3 Series modular switches. Built for data center spine, leaf, and interconnect applications, this wirespeed line card delivers up to 9.6 Tbps full-duplex bandwidth with deep buffer virtual output queue architecture to eliminate packet loss. The line card supports FlexRoute for Internet-scale routing, Accelerated sFlow for network telemetry, and Algorithmic ACLs for flexible access control across enterprise and cloud data centers.

Features

48x 100GbE QSFP28 ports with wirespeed, non-blocking architecture
- 9.6 Tbps full-duplex switching bandwidth per line card
- Virtual Output Queue (VOQ) architecture eliminating head-of-line blocking
- Deep buffer packet memory (8GB to 24GB) for lossless forwarding and congestion management
- Distributed forwarding with Broadcom Jericho2 packet processor
- FlexRoute engine for Internet-scale routing tables and low power consumption
- Accelerated sFlow with line-rate sampling and processing for network telemetry
- Algorithmic ACLs for high-scale access control and policy-based forwarding
- Comprehensive Layer 2 features: VLANs, STP, MLAG, LACP, MAC table management
- Advanced Layer 3 routing: OSPF, BGP, IS-IS, static routes, ECMP/UCMP, multicast
- MPLS and Segment Routing support for service provider and DCI applications
- EVPN and VXLAN for network virtualization and overlay fabrics
- Precision Time Protocol (PTP) for network timing and synchronization
- Advanced monitoring: LANZ (Latency Analyzer), DANZ (Data Analyzer), sFlow, IPFIX
- Hot-swappable design with graceful fabric degradation on module failure
- Compatible with all 7800R3 Series chassis (7804R, 7808R, 7812R, 7816R)
- Arista EOS with modular state-sharing architecture and open programmability
- ZTP (Zero Touch Provisioning) for automated deployment
- REST API and eAPI for network automation and orchestration

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

Product Type: 48-port 100GbE QSFP wirespeed line card for Arista 7800R3 Series modular switches
- Port Configuration: 48x 100GBASE QSFP28 ports
- Switching Bandwidth: Up to 9.6 Tbps full-duplex
- Forwarding Rate: Up to 2 billion packets per second per line card
- Packet Buffer: 8GB to 24GB deep buffer packet memory with Virtual Output Queue architecture
- Chipset: Broadcom Jericho2 packet processor with distributed dataplane forwarding
- Layer 2/Layer 3 Features: Full L2/L3 forwarding with flexible table allocation
- Routing Scale: FlexRoute engine for Internet-scale routing tables
- Management: Arista EOS (Extensible Operating System), CLI, SNMP, REST API, eAPI
- QoS: Virtual Output Queuing, hierarchical QoS, traffic shaping, classification
- Advanced Features: Accelerated sFlow, Algorithmic ACLs, PTP, LANZ, DANZ
- Hot-Swap: Yes, supports hot insertion and removal
- Compatible Chassis: Arista 7804R, 7808R, 7812R, 7816R (all 7800R3 Series modular systems)
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Power: Varies by configuration; typical consumption at 25°C with 50% port load (excludes optics)

FAQs

Q: Which Arista chassis models are compatible with the DCS-7800R3-48CQ-LC line card?
A: This line card is compatible with all Arista 7800R3 Series modular chassis including the 7804R (4-slot), 7808R (8-slot), 7812R (12-slot), and 7816R (16-slot) systems. It supports hot-swap installation and works alongside other 7800R3 and 7800R3A line cards.

Q: What is the maximum throughput and forwarding capacity of this line card?
A: The DCS-7800R3-48CQ-LC delivers up to 9.6 Tbps of full-duplex bandwidth with wirespeed forwarding across all 48 ports. It provides up to 2 billion packets per second of L2/L3 forwarding capacity with deep buffer architecture and virtual output queuing to eliminate head-of-line blocking.

Q: Does this line card support advanced routing features and Internet-scale routing tables?
A: Yes, the line card supports Arista FlexRoute engine which enables Internet-scale IP routing with millions of routes. It includes support for comprehensive L2/L3 features, MPLS, Segment Routing, EVPN, VXLAN, and Algorithmic ACLs for flexible access control and policy-based forwarding.

Q: What transceivers and cable types are supported on this line card?
A: The 48 QSFP28 ports support a wide range of 100G and 40G transceivers including QSFP28 SR4, LR4, PSM4, CWDM4, and DAC cables. The ports can also operate at lower speeds such as 40G with QSFP+ modules. Check the Arista transceiver compatibility matrix for the full list of supported optics.

Q: Does the DCS-7800R3-48CQ-LC require any specific software licenses?
A: The line card operates with Arista EOS and includes support for core L2/L3 features, FlexRoute, Accelerated sFlow, and Algorithmic ACLs. MACsec encryption requires a separate line card model (DCS-7800R3-48CQM-LC) and corresponding MACsec license. Always verify software and licensing requirements with Arista documentation for your deployment.

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us