Arista DCS-7812-CH | 7800R3 12-Slot 23RU Modular Switch Chassis, Chassis Only

SKU:DCS-7812-CH

Stock Status: Enquire

Request Quote

Sale Sold out

Shipping calculated at checkout.

20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

The 7800R3 12-slot, 23RU chassis is the largest-capacity member of Arista's 7800R3 modular data centre switch and router family. It suits large-scale data centre spine and layer 2/3 cloud designs, internet peering, secure data centre interconnect, carrier edge and core roles, and enterprise data centres that need high-density 100G and 400G.

The chassis provides 12 line card slots, 2 supervisor slots, 6 fabric module slots and 18 power supply slots with a 54 kW maximum power budget. Maximum port density reaches 432 x 400G, 1728 x 100G or 3456 x 50G ports, with up to 345 Tbps and 72 Bpps of system throughput. Airflow is front-to-rear. This is a chassis-only SKU, so supervisors, fabric modules, line cards and power supplies are selected separately to suit the build. It runs Arista EOS, and the chassis SKU itself carries no software licence.

It works with DCS-7812R3-FM fabric modules (six required), DCS-7816-SUP and DCS-7816-SUP1S supervisors, and 7800R3 and 7800R3A line cards. Compatible 3kW power supplies include PWR-D1-3041-AC, PWR-D2-3041-DC and PWR-D4-3041-AC, covering AC and DC feeds. The KIT-7800-RK 4-post rack mounting kit is available for installation.

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

Features

- Fully scheduled, lossless architecture with cell-spraying fabric, virtual output queues and deep packet buffers of up to 24 GB per line card
- Latency under 4 microseconds (64 bytes)
- 100G, 200G and 400G modes, 800G ready, with 400G ZR/ZR+ support
- Dual-input grid-redundant power supplies with configurable PSU redundancy up to N+N
- Accepts any combination of 7800R3 and 7800R3A line cards
- Runs Arista EOS with a single software image across all Arista platforms
- Telemetry and monitoring through CloudVision, LANZ, PTP (IEEE 1588), sFlow and ZTP
- MACsec, IPsec and VXLANsec encryption on supported line cards with a licence file
- Graceful degradation supported on fabric modules

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

- Chassis model: DCS-7812 (7812R / 7800R3 Series)
- Form factor: 23 RU modular chassis
- Line card slots: 12
- Supervisor slots: 2
- Fabric module slots: 6 (DCS-7812R3-FM)
- Power supply slots: 18 (54 kW maximum power budget)
- Maximum 400G density: 432 ports
- Maximum 100G density: 1728 ports
- Maximum 50G density: 3456 ports
- Maximum system throughput: 345 Tbps / 72 Bpps
- Maximum power consumption (40 C ambient, 100% load, excluding optics): 27,984 W
- Airflow: front-to-rear
- Typical airflow: 1546.6 cfm (43.77 m3/min)
- Maximum airflow: 3455.4 cfm (97.79 m3/min)
- Dimensions (H x W x D): 39.9 x 17.4 x 37 in (101.3 x 44.1 x 94 cm)
- Weight (chassis only): 355 lbs (161 kg)
- Weight (full system): 1082 lbs (490 kg)
- 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: Does this chassis need a software licence?
A: The chassis SKU itself includes no software licence. Optional EOS licences are ordered separately, such as LIC-MOD-3-E for Enhanced routing, LIC-MOD-3-V for Virtualisation and LIC-MOD-3-V2 for EOS Extensions and Security. Encryption services require a licence file.

Q: What power supplies does the chassis use?
A: It has 18 PSU slots with a 54 kW maximum power budget. Compatible 3kW PSUs are PWR-D1-3041-AC (200-240VAC), PWR-D2-3041-DC (-48 to -60VDC) and PWR-D4-3041-AC (HVAC/HVDC). Maximum internal system power is 27,984 W at 40 C with 100% load, excluding optics.

Q: Which modules do I need to build a working system?
A: You need six DCS-7812R3-FM fabric modules, at least one DCS-7816-SUP or DCS-7816-SUP1S supervisor, and your choice of 7800R3 or 7800R3A line cards. Power supplies are also required to meet your load.

Q: Which line cards does it support?
A: It supports 7800R3 and 7800R3A line cards, including 7800R3-36P, 7800R3-36D, 7800R3-48CQ2, 7800R3A-36D and 7800R3AK-36DM. Any combination can be installed across the 12 slots.

Q: What rack mounting kit is used?
A: The KIT-7800-RK 4-post mounting kit is the compatible rack mount option for the 7800 chassis family.