• Silver-colored rack-mounted arista dcs-7800r3-48cqm-lc network switches with 48 ports and ventilation slots shown from back
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Arista

Arista DCS-7800R3-48CQM-LC | 7800R3 48-Port 100G QSFP Line Card, MACsec, 8GB Buffer

DCS-7800R3-48CQM-LC

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Description

The 7800R3 48-port 100G line card is a wire-speed module for the Arista 7800R3 modular chassis. It suits large cloud data centres, Internet peering and edge, secure data centre interconnect, carrier core and edge, and enterprise data centre networks that need encrypted 100G links with deep buffers.

This card provides 48 QSFP100 ports with MACsec encryption on all ports, 8 GB of port buffer and 2.4 Tbps of throughput (4.8 Tbps full duplex). Each port can run at 100G, and up to 48 ports can run at 40G using QSFP+ optics, though MACsec is not available at 40G. Typical power draw is 620 W, with a maximum of 684 W excluding optics.

It fits the DCS-7804, DCS-7808, DCS-7812, DCS-7816 and DCS-7816L chassis and requires a 7800 series supervisor module and 7800R3 fabric modules. The card runs Arista EOS, with optional Enhanced Software Licences for routing protocols such as OSPF, BGP, ISIS and PIM ordered per chassis slot count.

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

Features

- Fully scheduled, lossless VOQ architecture with a cell-spraying fabric that eliminates head-of-line blocking
- Deep packet buffers, 8 GB on this line card
- MACsec (IEEE 802.1AE) link-layer encryption on all ports
- FlexRoute for Internet-scale routing, algorithmic ACLs and Accelerated sFlow
- Hot-swappable components with redundant supervisors, power supplies, fabric and cooling modules
- Front-to-rear airflow
- Runs Arista EOS with CloudVision, LANZ, ZTP, IEEE 1588 PTP, and JSON-RPC and NETCONF APIs
- 100G breakout and multi-rate configurations independent of other ports on the card

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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specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Ports: 48x QSFP100
- Max 100G ports: 48
- Max 40G ports (using QSFP+): 48, no MACsec
- Max total interfaces: 48
- Throughput: 2.4 Tbps (4.8 Tbps full duplex)
- Encryption: MACsec on all ports
- Port buffer: 8 GB
- Typical power: 620 W (typical measured at 25 C ambient with 50% load on all ports, excluding optics)
- Maximum power: 684 W
- Dimensions (W x H x D): 48.1 x 5.4 x 45.2 cm (18.9 x 2.1 x 17.8 in)
- Weight: 9.1 kg (20 lbs)
- Chassis support: DCS-7816L, DCS-7816, DCS-7812, DCS-7808, DCS-7804
- Operating temperature: 0 to 40 C (32 to 104 F)
- Storage temperature: -40 to 70 C (-40 to 158 F)
- Relative humidity: 5 to 90%
- Operating altitude: 0 to 3,000 m (0 to 10,000 ft)

FAQs

Q: Which chassis does this line card fit?
A: It fits the Arista DCS-7804, DCS-7808, DCS-7812, DCS-7816 and DCS-7816L chassis. The chassis also needs a 7800 series supervisor module and 7800R3 fabric modules.

Q: Is MACsec available on every port?
A: MACsec is supported on all 48 ports at 100G. It is not available when ports run at 40G using QSFP+ optics.

Q: What power does the line card draw?
A: Typical draw is 620 W and the maximum is 684 W, excluding optics. The chassis uses redundant hot-swappable 3000W AC or DC power supplies.

Q: Does it need a software licence?
A: The card runs on Arista EOS in the 7800R3 chassis. Optional Enhanced Software Licences for OSPF, BGP, ISIS and PIM, plus virtualisation licences, are ordered per chassis slot count.

Q: What optics do the QSFP100 ports take?
A: The ports accept 100G QSFP optics and cables, and 40G QSFP+ optics without MACsec. Refer to the Arista transceiver datasheet and EOS release notes for the full optics list.

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