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Arista

Arista DCS-7050CX4M-48D8-R | 7050X4 48-Port 100G Switch, 8x 400G QSFP-DD, MACsec

SKU:DCS-7050CX4M-48D8-R

Stock Status: Enquire

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Description

The Arista DCS-7050CX4M-48D8-R is a high-performance 2RU data center switch designed for modern cloud and hyperscale environments. With 48x 100GbE QSFP28 ports and 8x 400GbE QSFP-DD uplinks, it delivers 16 Tbps non-blocking throughput and sub-microsecond latency. Hardware-accelerated MACsec encryption on 56 ports ensures line-rate security for sensitive workloads, while the rear-to-front airflow design optimizes cooling in hot-aisle/cold-aisle deployments.

Features

48x 100GbE QSFP28 server-facing ports with flexible 10/25/50/100G speed configuration
- 8x 400GbE QSFP-DD uplinks for non-blocking spine connectivity
- Hardware-accelerated MACsec (IEEE 802.1AE) encryption on 56 ports at line rate
- 16 Tbps non-blocking switching fabric with 2.78 Bpps forwarding capacity
- Sub-microsecond latency (900 ns cut-through) for latency-sensitive applications
- 82 MB shared packet buffer with Dynamic Buffer Allocation for microburst absorption
- Comprehensive Layer 2 features: VLAN (4096), RSTP, MSTP, LACP, Q-in-Q, jumbo frames
- Advanced Layer 3 routing: BGP, OSPF, IS-IS, VRF, BFD, PIM-SM/SSM, VRRP, VARP
- VXLAN and EVPN overlay support for multi-tenant data center fabrics
- 128-way ECMP with Dynamic Load Balancing (DLB) and Unequal Cost Multi-Pathing (UCMP)
- LANZ (Latency Analyzer) for real-time congestion and microburst detection
- Arista EOS with programmable APIs (REST, gNMI, OpenConfig, Python scripting)
- Zero-touch provisioning (ZTP) and CloudVision integration for centralized management
- Hot-swappable redundant AC power supplies and fan trays
- Rear-to-front airflow optimized for hot-aisle/cold-aisle data center designs

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

48x 100GbE QSFP28 ports, 8x 400GbE QSFP-DD ports, 2x 1/10GbE SFP+ ports
- Flexible port speeds: 10/25/50/100G on QSFP28, 40/100/200/400G on QSFP-DD
- Maximum configuration: 72x 100G interfaces total via breakout
- Switching capacity: 16.0 Tbps full-duplex, non-blocking
- Forwarding rate: 2.78 billion packets per second (Bpps)
- Latency: 900 ns (cut-through mode)
- Packet buffer: 82 MB shared with Dynamic Buffer Allocation
- Hardware MACsec (IEEE 802.1AE) line-rate encryption on 56 ports
- Management: EOS (Arista Extensible Operating System), CLI, REST API, gNMI, SNMP
- 1x 10/100/1000 Ethernet management port, 1x RS-232 serial console (RJ-45), 1x USB
- Form factor: 2RU rackmount
- Dimensions: 43.99 × 8.79 × 66.8 cm (17.3 × 3.46 × 26.30 in)
- Weight: 16.0 kg (35.1 lbs)
- Airflow: Rear-to-front (reverse)
- Dual AC power supplies (redundant)
- Maximum MTU: 9216 bytes

FAQs

Q: What is the difference between the -R and -F suffix models?
A: The -R suffix indicates rear-to-front (reverse) airflow, ideal for hot-aisle exhaust configurations. The -F variant (DCS-7050CX4M-48D8-F) features front-to-rear airflow for cold-aisle exhaust. Both are electrically identical.

Q: Does this switch support port breakout for higher port density?
A: Yes, the QSFP28 ports can be broken out to 4x 25G or 4x 10G, and QSFP-DD ports support breakout to 2x 200G, 4x 100G, or 8x 50G, enabling up to 72 total 100G interfaces.

Q: What is MACsec and why is it important?
A: MACsec (IEEE 802.1AE) provides hardware-accelerated line-rate encryption at Layer 2, protecting data in transit across the network. This model supports MACsec on 56 ports, making it ideal for secure multi-tenant cloud and financial services deployments.

Q: What Layer 3 routing protocols are supported?
A: Arista EOS supports full Layer 3 routing including BGP, MP-BGP, OSPF, OSPFv3, IS-IS, VRF, VXLAN, EVPN, and 128-way ECMP for scalable spine-leaf architectures.

Q: Is this switch suitable for AI/ML or high-frequency trading workloads?
A: Yes, with 900 ns cut-through latency, 82 MB shared buffer, and ultra-low jitter, this switch is optimized for latency-sensitive applications including AI/ML, HFT, and real-time analytics.

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