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Arista Networks 7124SX 10G SFP Data Center Switch

High performance, ultra-low latency layer 2/3/4 10 Gigabit Ethernet switch.

The Arista 7124SX switch is a high performance, ultra-low latency layer 2/3/4 10 Gigabit Ethernet switch. Offered with 24 1/10GbE ports in a compact and power efficient 1RU chassis, the Arista 7124SX forwards packets in less than 500 nanoseconds. All ports accommodate the full range of 10GbE SFP+ and GbE SFP options, allowing for maximum flexibility and investment protection as customers of all sizes migrate their server connections from Gigabit to 10 Gigabit Ethernet. With Arista EOS, advanced monitoring and provisioning capabilities such as Latency Analyzer, Zero Touch Provisioning, VMTracer and Linux based tools can be run natively on the switch.
Availability: In stock

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Ultra-low, Consistent Latency

The 7124SX offers industry-leading sub-500 nanoseconds forwarding latency for both unicast and multicast traffic. The latency characteristics do not change with varying packet size, enabling L3, ACL or mirroring functionality.

Arista EOS

All Arista products including the 7124SX switch run Arista EOS software. The same binary image supports all Arista products, making it easy for network administrators to standardize the operating system across all switches in the data center. A built in SSD is available for advanced logging, data captures and various services that can now be run from the switch.

Arista EOS is a modular switch operating system with a unique state sharing architecture that cleanly separates switch state from protocol processing and application logic. Built on top of a standard Linux kernel, all EOS processes run in their own protected memory space and exchange state through an in-memory database. This multi-process state sharing architecture provides the foundation for in-service-software updates and self-healing resiliency. Several Linux based tools can be run directly on the switch, running on a powerful dual-core x86 CPU subsystem.

Latency Analyzer (LANZ) with Built-in Storage

The 7124SX offers advanced capabilities for latency analysis in a network. Congestion points can be identified and tracked over time. A built-in 50GB SSD is available as an option from the factory. The integrated storage allows for a whole new family of applications that can be run from the network itself. This includes having the switch be a PXE boot server, store syslogs for audit and compliance right on the switch, logging latency trends per queue, capturing and saving data packets via tcpdump and Linux based services such as DHCP and Precision Time Protocol (PTP).

High Availability

The Arista 7124SX switch was designed for high availability from both a software and hardware perspective. Key high availability features include:

  • 1+1 hot-swappable power supplies
  • Four N+1 hot-swappable fans
  • Live patching
  • Self healing software with Stateful Fault Repair (SFR)
  • Up to 16 10GbE ports per link aggregation group (LAG)
  • Multi-chassis LAG for active/active L2 multipathing
  • 16-way ECMP routing for load balancing and redundancy

Deterministic, Ultra-Low Latency

The Arista 7124SX is optimized for ultra-low latency, cut-through forwarding. It offers the same low latency characteristics at all packet sizes. The latency does not change even when additional features such as L3, ACL, QoS, Multicast or Port Mirroring are enabled. The 7124SX also forwards packets in cut-through mode at 1GbE speeds at low latency for legacy connections.

Manufacturer Arista Networks
Part No. 7124sx
Height 44
Depth 406.4
Weight [Kg] 445.00
Compliant Standards • 802.1D Bridging and Spanning Tree
• 802.1p QOS/COS
• 802.1Q VLAN Tagging
• 802.1w Rapid Spanning Tree
• 802.1s Multiple Spanning Tree Protocol
• 802.1AB Link Layer Discovery Protocol
• 802.3ad Link Aggregation with LACP
• 802.3ab 1000BASE-T
• 802.3z Gigabit Ethernet
• 802.3ae 10 Gigabit Ethernet
Bandwidth 480 gigbits/sec
Supported Software Arista EOS
Switching Capacity 480Gbps
Ports 24 SFP+
Port-Port Latency sub-500ns
Compatible CPU(s) x86 Dual-Core
Memory Capacity 2 GB
USB Port(s) 1
Serial Ports 1
LAN Socket(s) 2x 10/100/1000 Mgmt Ports