Extreme Networks BR-VDX6940-24Q-AC-F VDX 6940 40G QSFP+ Switch

Technical SpecificationsModel：BR-VDX6940-24Q-AC-F Brand：Extreme Networks (Legacy Brocade) Product Type: 1U rack mount high density 40G data center spine/leaf switch

Front Ports:

• 24 × QSFP+ slots, support 40GBASE-X; each port supports breakout to 4×10G SFP+

• RJ45 management port, RJ45 console port, USB port

• Per-port link/activity LED indicators, system health LED

Switching Capacity: 2.88 Tbps Forwarding Rate: 2.16 Bpps Max Jumbo Frame: 9216 bytes Fabric Technology: VCS Virtual Cluster Switching Supported Protocol: L2 switching, static routing, OSPF, BGP, FCoE, DCB, LACP QoS: 8 hardware priority queues per port Power Supply: Dual hot-swappable AC PSU (load sharing, redundant) Airflow: F suffix = non-port-side exhaust (front to back airflow) Software OS: Network OS (NOS) Latency: ~800ns low latency Buffer: 24MB on-chip packet buffer Operating temperature：0℃ ~ +40℃ Weight: Approx 6.2 kg Mounting: Standard 19-inch 1U rack bracket

System compatibility

BR-VDX6940-24Q-AC-F belongs to Extreme VDX6940 family. Base 24 active 40G ports, can upgrade to full 36×40G via PoD Ports-on-Demand license. Compatible with 40G QSFP+ optical modules, DAC/AOC breakout cables. Can form VCS cluster with other VDX series switches, commonly deployed as spine switch in leaf-spine fabric.

Function

BR-VDX6940-24Q-AC-F is low-latency 40G high-density data center switch. The 24 QSFP+ ports support native 40G or breakout 4×10G mode, flexible for spine interconnection or leaf server access. VCS fabric technology virtualizes multiple physical switches as a single logical device, simplifies fabric management. Supports FCoE and DCB for unified LAN/storage network. Front-to-back airflow design suits hot-aisle/cold-aisle data center layout. Dual redundant AC power supplies guarantee non-stop operation. Widely used for enterprise data center leaf-spine architecture, virtualization environment and storage convergence network.

InstallationMount unit into standard 19-inch rack. Install dual hot-swappable AC power supplies and connect power cords. Insert QSFP+ transceivers or 40G DAC/AOC breakout cables. Access console port for initial NOS configuration, build VCS cluster, configure VLAN, routing and FCoE/DCB policy. Verify port negotiation and fabric status after power-up.

Interface24 × QSFP+ 40G slots,management RJ45,console port,USB port,PSU and fan slots,LED indicators for Extreme Networks BR-VDX6940-24Q-AC-F.

FeatureOriginal Extreme Networks BR-VDX6940-24Q-AC-F VDX6940 switch,24×40G QSFP+,PoD license expandable to 36 ports,low latency 800ns,VCS virtual cluster fabric,dual redundant AC PSU,front to back airflow,NOS operating system. This spare switch is used for data center leaf-spine fabric deployment and hardware replacement.

DiagnosticDevice boot failure: Check AC power input, re-seat redundant PSU and fan modules. QSFP+ port no link: Verify transceiver compatibility, clean fiber end and read DDM optical power readings. VCS fabric split: Check inter-switch link connectivity, match NOS firmware version for cluster members. High packet latency: Inspect buffer and QoS scheduling, check cabinet cooling airflow. Overheat alarm: Confirm fan tray running normally, clear air blockage.

Product BriefBR-VDX6940-24Q-AC-F is Extreme VDX6940 1U 24-port 40G QSFP+ switch with front-to-back airflow,classic spare for data center leaf-spine fabric.

DisclaimerAll parameters are for reference only and shall not be used as the basis for quotation. Goods are scarce, overseas delivery lead time is 3-7 working days. It is only used for equipment maintenance and replacement.