• Silver-colored rack-mounted arista dcs-7800r3ak-36pm-lc network switches with ventilation slots and 36-port 400g osfp line card
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Arista

Arista DCS-7800R3AK-36PM-LC | 7800R3 36-Port 400G OSFP Line Card, FlexRoute 5M, TunnelSec

DCS-7800R3AK-36PM-LC

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Description

The Arista 7800R3AK 36-port 400G OSFP line card is built for the 7800R modular chassis family. It uses the 7800R3AK large-route design, extending FlexRoute to more than 5M routes, and adds TunnelSec encryption on every port. It suits large-scale data centre spines, Internet peering, carrier edge, DCI/WAN and cloud-grade routing that needs full Internet routing tables, deep buffers and line-rate encryption.

The card provides 36 x 400G OSFP ports, and supports up to 144 x 100G or 232 interfaces in total when using breakout cables. Forwarding throughput is 14.4 Tbps (28.8 Tbps FDX) with a 16 GB port buffer. TunnelSec delivers line-rate AES-256-GCM encryption with IEEE 802.1AE MACsec, IPsec and VXLANsec across speeds from 10G to 400G. TunnelSec is an EOS licensed feature that requires a licence file to enable. Typical power draw is 578 W, with a maximum of 794 W, excluding optics.

The line card installs in DCS-7816L, DCS-7816, DCS-7812, DCS-7808 and DCS-7804 chassis and can be mixed with 7800R3 and 7800R3A line cards in the same chassis. The OSFP ports accept 400G optics and 200G, 100G, 50G and 25G breakout cables.

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

Features

- FlexRoute technology for Internet-scale routing, with more than 5M routes on R3AK line cards
- TunnelSec line-rate AES-256-GCM encryption with IEEE 802.1AE MACsec, IPsec and VXLANsec on all speeds from 10G to 400G
- Fully scheduled lossless VOQ fabric with deep buffers
- Interoperates with 7800R3 and 7800R3A line cards in the same chassis
- Accelerated sFlow and Algorithmic ACLs
- EVPN/VXLAN overlay support
- Supports 400G, 200G, 100G, 50G, 25G and 10G with optics or breakout cables, plus 400ZR OSFP optics
- Runs Arista EOS, the single software image used across all Arista products

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: 36x 400G OSFP
- Maximum 100G ports: 144
- Maximum 50G, 25G and 10G interfaces: 232 each
- Maximum 40G ports (using QSFP+): 36
- Maximum total interfaces: 232
- Throughput (FDX): 14.4 Tbps (28.8 Tbps)
- Route scale: FlexRoute, more than 5M routes (R3AK)
- Encryption: TunnelSec on all ports (MACsec, IPsec, VXLANsec)
- Port buffer: 16 GB
- Typical power: 578 W (25 C, 50% load, excludes optics)
- Maximum power: 794 W (excludes optics)
- 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: 11.5 kg (25.35 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 (10,000 ft)

FAQs

Q: Does TunnelSec need a licence?
A: Yes. TunnelSec is an EOS licensed feature that requires a licence file to enable. The hardware supports it on all ports.

Q: Which chassis does this line card fit?
A: It installs in the DCS-7816L, DCS-7816, DCS-7812, DCS-7808 and DCS-7804 chassis of the 7800R family.

Q: Can it be mixed with other 7800R3 line cards?
A: Yes. It interoperates with 7800R3 and 7800R3A line cards in the same chassis.

Q: What power does the line card draw?
A: Typical draw is 578 W and maximum is 794 W, excluding optics. It is powered from the 7800R chassis power supplies, so size the chassis PSUs for the full line card population.

Q: What does the R3AK variant add over other 7800R3 line cards?
A: The R3AK design extends FlexRoute scaling to more than 5M routes and provides TunnelSec encryption on all ports.

Q: Which optics and cables work with the OSFP ports?
A: The OSFP ports accept 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, 2FR4, LR4, PLR4 and ZR options, plus 200G, 100G, 50G and 25G breakout cables.

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