{"product_id":"qfx5100-24q-3afo-juniper-qf5100-24x40gbe-qsfp-switch-front-to-back-airflow","title":"QFX5100-24Q-3AFO Juniper QF5100 24x40GBE QSFP+ Switch, Front to Back Airflow","description":"\u003ch1 dir=\"ltr\"\u003e\u003cstrong\u003eJuniper QFX5100-24Q-3AFO 24-Port 40GbE QSFP+ Switch\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cstrong\u003eHigh-Performance 40GbE Fabric Leaf Switch with Front-to-Back Airflow\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69b84c3f-3fbc-8324-a2c7-5c1ce27679d6-28\" data-testid=\"conversation-turn-52\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"d7f15bff-b505-49e9-963a-fe8114c9bf13\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"160\" data-end=\"576\"\u003eThe \u003cstrong data-start=\"164\" data-end=\"220\"\u003eJuniper Networks QFX5100-24Q-3AFO Data Center Switch\u003c\/strong\u003e is a compact, high-performance \u003cstrong data-start=\"252\" data-end=\"283\"\u003e40GbE leaf and spine switch\u003c\/strong\u003e engineered for modern \u003cstrong data-start=\"306\" data-end=\"394\"\u003ecloud data centers, high-performance computing (HPC), and enterprise network fabrics\u003c\/strong\u003e. With \u003cstrong data-start=\"401\" data-end=\"431\"\u003e24 fixed QSFP+ 40GbE ports\u003c\/strong\u003e and \u003cstrong data-start=\"436\" data-end=\"459\"\u003etwo expansion slots\u003c\/strong\u003e, this switch delivers exceptional scalability, flexibility, and throughput in a space-efficient \u003cstrong data-start=\"556\" data-end=\"575\"\u003e1RU form factor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"578\" data-end=\"1006\"\u003eDesigned for performance-critical environments, the QFX5100-24Q-3AFO offers an impressive \u003cstrong data-start=\"668\" data-end=\"700\"\u003e2.56 Tbps switching capacity\u003c\/strong\u003e and \u003cstrong data-start=\"705\" data-end=\"734\"\u003e1.44 Bpps forwarding rate\u003c\/strong\u003e, ensuring wire-speed packet processing for demanding workloads. Its \u003cstrong data-start=\"803\" data-end=\"831\"\u003ecut-through architecture\u003c\/strong\u003e delivers \u003cstrong data-start=\"841\" data-end=\"881\"\u003eultra-low latency (\u0026lt;550 nanoseconds)\u003c\/strong\u003e, making it ideal for latency-sensitive applications such as financial trading, real-time analytics, and clustered computing.\u003c\/p\u003e\n\u003cp data-start=\"1008\" data-end=\"1427\"\u003eThe switch supports a wide range of advanced fabric architectures, including \u003cstrong data-start=\"1085\" data-end=\"1159\"\u003eEVPN-VXLAN, Virtual Chassis, Virtual Chassis Fabric (VCF), and QFabric\u003c\/strong\u003e, enabling seamless scalability and simplified network management across large-scale deployments. With support for \u003cstrong data-start=\"1274\" data-end=\"1326\"\u003ehardware-based VXLAN L2\/L3 gateway functionality\u003c\/strong\u003e, it integrates effortlessly into \u003cstrong data-start=\"1360\" data-end=\"1426\"\u003evirtualized and software-defined networking (SDN) environments\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1429\" data-end=\"1724\"\u003eThe \u003cstrong data-start=\"1433\" data-end=\"1456\"\u003etwo expansion slots\u003c\/strong\u003e provide additional flexibility, allowing administrators to add \u003cstrong data-start=\"1520\" data-end=\"1546\"\u003e40GbE or 10GbE modules\u003c\/strong\u003e to meet evolving network requirements. Using breakout cables, the switch can support up to \u003cstrong data-start=\"1638\" data-end=\"1659\"\u003e104 × 10GbE ports\u003c\/strong\u003e, offering high-density connectivity for mixed-speed deployments.\u003c\/p\u003e\n\u003cp data-start=\"1726\" data-end=\"2071\"\u003eBuilt for reliability, the QFX5100-24Q-3AFO features \u003cstrong data-start=\"1779\" data-end=\"1884\"\u003edual hot-swappable power supplies, N+1 redundant fans, and Unified In-Service Software Upgrade (ISSU)\u003c\/strong\u003e for zero-downtime maintenance. The \u003cstrong data-start=\"1920\" data-end=\"1965\"\u003efront-to-back airflow (AFO – Airflow Out)\u003c\/strong\u003e design makes it ideal for \u003cstrong data-start=\"1992\" data-end=\"2031\"\u003ecold aisle data center environments\u003c\/strong\u003e, ensuring efficient thermal management.\u003c\/p\u003e\n\u003cp data-start=\"2073\" data-end=\"2345\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eFully integrated with \u003cstrong data-start=\"2095\" data-end=\"2107\"\u003eJunos OS\u003c\/strong\u003e, and compatible with automation tools such as \u003cstrong data-start=\"2154\" data-end=\"2191\"\u003ePython, Ansible, Puppet, and Chef\u003c\/strong\u003e, the \u003cstrong data-start=\"2197\" data-end=\"2225\"\u003eJuniper QFX5100-24Q-3AFO\u003c\/strong\u003e provides a scalable, high-density, and future-ready switching solution for next-generation data center infrastructures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Specifications – Juniper Networks QFX5100-24Q-3AFO 24-Port 40GbE Data Center Switch (Front-to-Back Airflow)\u003cbr\u003e\u003ca href=\"https:\/\/www.juniper.net\/content\/dam\/www\/assets\/datasheets\/us\/en\/switches\/qfx5100-ethernet-switch-datasheet.pdf\" target=\"_blank\" title=\"Juniper QFX5100-24Q-3AFO - Data Sheet\" rel=\"noopener\"\u003eCLICK HERE FOR DATA SHEET\u003c\/a\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eJuniper Networks QFX5100-24Q-3AFO Data Center Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eJuniper Networks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eQFX5100-24Q-3AFO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFixed-Configuration Data Center Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitch Series\u003c\/td\u003e\n\u003ctd\u003eJuniper QFX5100 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeployment Type\u003c\/td\u003e\n\u003ctd\u003eData Center Leaf, Spine, Aggregation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFixed Ports\u003c\/td\u003e\n\u003ctd\u003e24 × 40 Gigabit Ethernet (40GbE QSFP+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Slots\u003c\/td\u003e\n\u003ctd\u003e2 × Expansion Module Slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Options\u003c\/td\u003e\n\u003ctd\u003e4 × 40GbE or 8 × 10GbE modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum 10GbE Density\u003c\/td\u003e\n\u003ctd\u003eUp to 104 ports (via breakout cables)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 2.56 Tbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForwarding Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 1.44 Billion Packets per Second (Bpps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatency\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 550 nanoseconds (sub-microsecond)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Architecture\u003c\/td\u003e\n\u003ctd\u003eCut-through switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating System\u003c\/td\u003e\n\u003ctd\u003eJunos OS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVirtual Chassis Support\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVirtual Chassis Fabric (VCF)\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEVPN-VXLAN Support\u003c\/td\u003e\n\u003ctd\u003eYes (L2 and L3 gateway)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQFabric Support\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVXLAN Capability\u003c\/td\u003e\n\u003ctd\u003eHardware-based VXLAN L2\/L3 gateway\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRouting Protocols\u003c\/td\u003e\n\u003ctd\u003eBGP, OSPF, IS-IS, Static Routing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMulticast Support\u003c\/td\u003e\n\u003ctd\u003eIGMP, PIM-SM, PIM-SSM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQoS Support\u003c\/td\u003e\n\u003ctd\u003eAdvanced QoS with traffic classification and scheduling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity Features\u003c\/td\u003e\n\u003ctd\u003eACLs, MACsec support, DHCP Snooping, ARP Inspection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual hot-swappable AC or DC power supplies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling System\u003c\/td\u003e\n\u003ctd\u003eN+1 redundant fan trays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow Direction\u003c\/td\u003e\n\u003ctd\u003eFront-to-Back (AFO – Airflow Out \/ Port-to-FRU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Availability\u003c\/td\u003e\n\u003ctd\u003eUnified ISSU (In-Service Software Upgrade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomation Support\u003c\/td\u003e\n\u003ctd\u003ePython, Ansible, Puppet, Chef\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Virtualization\u003c\/td\u003e\n\u003ctd\u003eVMware NSX, OpenContrail integration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJumbo Frame Support\u003c\/td\u003e\n\u003ctd\u003eUp to 9,216 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003e1U Rack Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Mounting\u003c\/td\u003e\n\u003ctd\u003eStandard 19-inch rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~400–500 W (depending on configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse Cases\u003c\/td\u003e\n\u003ctd\u003eCloud data centers, HPC, financial trading, virtualization environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eFAQs:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eQ1. Can I use the 40GbE ports for 10GbE connectivity?\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cbr\u003eYes. Using QSFP+ to 4xSFP+ breakout cables, each of the 24 fixed ports can be channelized into four 10GbE ports.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eQ2. What is the difference between the 3AFO and 3AFI models?\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cbr\u003eThe \"AFO\" model exhausts hot air out the back (FRU side), while the \"AFI\" model pulls air in from the back and exhausts it out the front (Port side). You must match the airflow to your data center's cooling design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eQ3. Does this switch support 100GbE?\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cbr\u003eNo. The QFX5100-24Q is a 40GbE platform. For 100GbE support, you would need to look at the QFX5110, QFX5120, or QFX5200 series.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eQ4. Can this switch be used as a Spine in a leaf-and-spine fabric?\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cbr\u003eYes. Due to its high 40GbE port density and low latency, it is frequently used as a spine switch for QFX5100-48S or EX4300 leaf switches.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eQ5. Is a license required for VXLAN? \u003c\/strong\u003e\u003cbr\u003eWhile basic Layer 2\/3 features are included, advanced features like EVPN-VXLAN and certain BGP capabilities may require an \"Enhanced\" or \"Advanced\" software license.\u003c\/span\u003e\u003c\/p\u003e","brand":"Juniper","offers":[{"title":"Default Title","offer_id":46731840815265,"sku":"QFX5100-24Q-3AFO","price":15000.0,"currency_code":"BRL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2216\/8673\/files\/QFX5100-24Q-3AFO-Juniper-QF5100-24x40GBE-QSFP-Switch-Front-to-Back-Airflow.jpg?v=1784706253","url":"https:\/\/www.foxti.com.br\/products\/qfx5100-24q-3afo-juniper-qf5100-24x40gbe-qsfp-switch-front-to-back-airflow","provider":"FoxTI","version":"1.0","type":"link"}