Arista DCS-7135V-48Y-4QC-R | 7135V 48-Port 25G Switch, 4x 100G, Rear-to-Front, 2x AC

SKU:DCS-7135V-48Y-4QC-R

Stock Status: Enquire

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Description

The Arista 7135V is a 1RU Layer 1+ FPGA switch built for ultra-low-latency trading and exchange networks. It pairs a single Layer 1 crosspoint matrix with an AMD Versal HBM Series VH1542 FPGA and runs Arista EOS. It suits exchanges, HFT venues and trading firms that need deterministic latency for market data fan-out and aggregation, low-latency multiplexing, packet capture with precision timestamping, tap aggregation and custom FPGA applications.

This DCS-7135V-48Y-4QC-R model provides 48 SFP28 ports (1/10/25G) and 4 QSFP28 ports (100G, 4x25G, 40G or 4x10G). Layer 1 latency starts from 5 ns, with 6 ns for 25G L1 replication. The FPGA has 16GB of HBM DRAM, and the system includes an 8-core x86 CPU, 32 GB of system DRAM and a 240 GB SSD. This SKU has rear-to-front airflow and 2x hot-swap 1000W AC power supplies in a 1+1 redundant arrangement, with 3 hot-swap fans in an N+1 arrangement. It requires EOS 4.36.0F or later and EOS Feature License Group 3.

The SFP28 ports accept 25GE and 10GE optics and cables, and the QSFP28 ports accept 100GE, 4x25GE, 40GE and 4x10GE. Compatible parts include QSFP-100G-SR4-E, QSFP-100G-LR4, SFP-25G-SR-E, SFP-25G-LR-E, SFP-10G-SR and DAC/AOC cables. E-Series optics avoid FEC delay for low latency.

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

Features

- Layer 1 signal regeneration, media conversion, port mirroring, telemetry and dynamic patching/link management
- Bit-for-bit forwarding for any protocol at 1-25Gbps on Layer 1 ports
- Under 100 ps jitter, with the same latency for 1:N port mirroring
- Completely non-blocking design
- Integrated AMD Versal HBM FPGA that runs Arista applications (MetaWatch, MetaMux, MultiAccess, SwitchApp) or customer-developed custom applications
- FPGA Development Kit for building custom applications
- Dual redundant hot-swappable power supplies and N+1 hot-swappable fans
- Streaming telemetry and full SFP28 interface diagnostics including light levels, temperature and voltage
- Linux-based EOS with industry-standard CLI and JSON RPC API
- Flexible time synchronisation with OCXO clock and PPS in/out

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

- Switch model: 7135V-48Y-4QC
- Front-panel ports: 48x SFP28 (1/10/25G), 4x QSFP28 (100G / 4x25G / 40G / 4x10G)
- Layer 1 throughput: 1-25.8 Gbps per lane
- Layer 1 latency: from 5 ns (6 ns for 25G L1 replication)
- FPGA: 1x AMD Versal HBM Series VH1542 with 16GB HBM DRAM
- FPGA Development Kit (FDK): Yes
- Vitis Development Kit (VDK): No
- Clock: OCXO
- CPU: 8-core x86
- System DRAM / SSD: 32 GB / 240 GB
- Internal CPU interfaces: 2x 25G + 2x 10G
- Management: 1x 100/1000 port, 1x RS-232 serial (RJ-45), 1x USB
- PPS: 1 input and 1 output (5V TTL)
- Power supplies: 2x hot-swap PWR-1011-AC, 1000W, 1+1 redundant, 110-240V AC, IEC 320-C13
- Fans: 3x hot-swap FAN-7011M-R, N+1 redundant, rear-to-front airflow
- Typical/max power draw: 500W / 615W
- Dimensions (WxHxD): 44.0 x 4.4 x 56.9 cm (17.3 x 1.7 x 22.4 in), 1 RU
- Weight: 11.9 kg (26.2 lbs)
- Operating temperature: 0 to 35 C (reverse airflow)
- Relative humidity: 10% to 85% non-condensing
- Minimum EOS: 4.36.0F, EOS Feature License Group 3

FAQs

Q: What EOS licence does the 7135V need?
A: It runs Arista EOS 4.36.0F or later and requires EOS Feature License Group 3. Arista application software such as MetaWatch, MetaMux, MultiAccess and SwitchApp is a separate offering.

Q: What airflow and power configuration is this SKU?
A: DCS-7135V-48Y-4QC-R has rear-to-front airflow with 2x PWR-1011-AC 1000W hot-swap AC power supplies in a 1+1 redundant arrangement. The rear-to-front fan module is FAN-7011M-R. Typical draw is 500W and maximum draw is 615W.

Q: Which optics and cables work with the 7135V?
A: The SFP28 ports support 25GE and 10GE, and the QSFP28 ports support 100GE, 4x25GE, 40GE and 4x10GE. Examples include QSFP-100G-SR4-E, QSFP-100G-LR4, SFP-25G-SR-E, SFP-25G-LR-E, SFP-10G-SR, SFP-10G-LR and the CAB-Q-Q-100G, CAB-S-S-25G and AOC-Q-Q-100G cables.

Q: Why choose E-Series optics for this switch?
A: E-Series optics such as QSFP-100G-SR4-E and SFP-25G-SR-E avoid FEC delay, which helps preserve the low latency this switch is designed to deliver.

Q: Can I run custom applications on the FPGA?
A: Yes. The FPGA Development Kit (FDK) is supported for building custom applications on the AMD Versal HBM FPGA. The Vitis Development Kit (VDK) is not supported.