Juniper QFX5220-32CD-AFI: Buyer Spec Notes


Why teams spend time on Juniper QFX5220-32CD-AFI before the PO


Juniper QFX5220-32CD-AFI product image


Juniper QFX5220-32CD-AFI is positioned on the supplier listing as storage hardware within the listed series line. Storage purchases fail when the SKU string, capacity class, and controller/enclosure role are not locked before the purchase order is issued. This article walks through a procurement-grade evaluation using only the product identity and description visible on the linked page—without inventing performance numbers that are not printed there.


Ports: 32x QSFP56-DD (400GbE) + 2x SFP+ Throughput: 25.6 Tbps (25600 Gbps) Buffer: 64 MB OS: Junos OS Evolved



Verified product identity



  • Brand: Juniper

  • Model / SKU: QFX5220-32CD-AFI

  • Product code (MPN): QFX5220-32CD-AFI

  • Series: listed series

  • Product type: network / IT hardware

  • Configuration: as listed

  • Condition on listing: Original New

  • Ordering role: Main SKU


Current supplier listing for configuration and availability: Juniper QFX5220-32CD-AFI.



What the listing actually asserts



  • Ports: 32x QSFP56-DD (400GbE) + 2x SFP+ Throughput: 25.6 Tbps (25600 Gbps) Buffer: 64 MB OS: Junos OS Evolved

  • Condition: Original New


Anything not listed above—throughput tables, MAC scale, exact PoE watts, dimensions, noise, or software feature matrices—should be treated as unconfirmed for this article. Prefer to re-open the live product page when the project needs those fields.




Additional product-page detail


Resources Company Open cart Home / Uncategorized / QFX5220-32CD-AFI Brand Juniper N/A Verified QFX5220-32CD-AFI Model (MPN) QFX5220-32CD-AFI SKU QFX5220-32CD-AFI Condition Factory Sealed Original Packaging (NIB) Out of Stock Ports: 32x QSFP56-DD (400GbE) + 2x SFP+ Throughput: 25.6 Tbps (25600 Gbps) Buffer: 64 MB OS: Junos OS Evolved Key Specifications System throughput Up to 25.6 Tbps (bidirectional) Forwarding capacity 8 billion packets per second (8 Bpps) Port density 32 ports of QSFP56-DD 400GbE SFP+/SFP28 2 SFP+ transceiver ports for in-band network management Dimensions (W x H x D) 17.26 x 1.72 x 21.1 in. (43.8 x 4.3 x 53.59 cm) Rack units 1 U Your Price Call for Pricing Volume discounts available Availability Out of Stock Get Global Discount Need configuration help? Our CCIE certified engineers can help you verify compatibility.


Secure Payment VISA Pay WIRE Fast Dispatch Global logistics network aiming for same-day handover.


The Juniper QFX5220-32CD-AFI is a high-performance, 1U fixed-configuration switch designed for spine-and-leaf fabrics in data centers. It features 32x QSFP56-DD ports supporting up to 400GbE interfaces and 2x SFP+ ports, delivering 25.6 Tbps forwarding capacity at 8 Bpps. Optimized for dense, fast standards-based fabrics with Junos OS Evolved.


Powered by Intel Xeon D-1500 CPU and 100 GB SSD storage. Supports massive scale: 2000K IPv4 unicast routes, 8.192K MAC addresses, 3968 VLAN IDs, 9216-byte jumbo frames. QoS with 8 unicast/2 multicast queues per port. 64 MB packet buffer. L2/L3 features including 128 LAGs (64 ports/LAG), MPLS (16K labels), ARP (32K).



Role fit and architecture notes



Teams usually shortlist this class of system when they need a named listed series configuration for a capacity or performance tier that matches an existing storage architecture. The listing identity below is the only hard ground truth for ordering.



  • Confirm whether the PO line is a controller, disk enclosure, software license, or full system SKU

  • Separate media type assumptions (HDD/SSD/all-flash wording if present on the page) from unverified IOPS claims

  • Align rack space, power, and multipath fabric design with the physical unit you will actually receive

  • Plan spare disks / controllers only after the exact model string is fixed


The verified listing text does not present PoE. Do not infer PoE from series naming habits in the market. If powered endpoints are required, select a PoE-marked SKU deliberately.


Uplink / multi-rate path signals found in the listing text should drive optic and cabling decisions. Listed ports field: see product page port listing. Multi-rate cages are not the same as a free license to mix any transceiver; standardize approved part numbers for your estate.



Port, power, and cabling decision tree


Use this sequence before you approve quantities:



  1. Copy the exact model string and product code into the design BOM and the purchase requisition side by side.

  2. Count copper and optical interfaces against day-1 endpoints plus a documented growth reserve (for example 20–30% empty ports in dense closets).

  3. Decide media: Cat5e/Cat6/Cat6A for multi-gig copper; OS2/OM3/OM4 and approved optics for fiber uplinks.

  4. Power path: AC is mentioned on the listing—align PDU type, cordage, and dual-supply policy with site standards.

  5. Thermal and depth: reserve blanking panels and airflow direction consistency even when the page omits exact BTU numbers.

  6. Management path: out-of-band Ethernet or console access should be drawn on the rack elevation before install day.



Configuration questions procurement should force engineering to answer



  • Is the ordered string exactly QFX5220-32CD-AFI / QFX5220-32CD-AFI, with no missing -P/-HP/-E/-QA suffix from a sibling SKU?

  • Which features are mandatory on day-1 versus nice-to-have, and which of those are actually evidenced on the product page?

  • What is the uplink handoff speed and media to the next layer, and who owns the optic BOM?

  • Are licenses, support years, or maintenance phrases embedded in the product name already priced into the line item?

  • What is the RMA and spares strategy: cold spare per site, or N+1 for multi-closet campuses?

  • Who validates firmware baseline and golden config before the change window?



Deployment and rollout narrative


A low-risk rollout for Juniper QFX5220-32CD-AFI looks less like “unbox and patch” and more like a short controlled project:



  1. Lab or pilot: stage one unit with the same cabling plant and uplink type planned for production. Capture boot time, default management address behavior, and any first-login prompts.

  2. Image and config: store a baseline configuration template versioned in your repository. Avoid hand-built snowflake units across sites.

  3. Physical install: label front ports and rear power feeds; photograph serial labels for the CMDB on the same day as racking.

  4. Link validation: verify every uplink, LAG/MLAG if used, and PoE negotiation for the first bank of endpoints before declaring success.

  5. Cutover: schedule during the agreed change window with a rollback that re-homes endpoints to the previous edge device or temporary switch.

  6. Hypercare: watch error counters, power draw, and user tickets for 48–72 hours; only then close the change.



Buying checklist (copy into the ticket)



  • Exact model and product code recorded in BOM and PO

  • Live product page re-checked for the wording that justified the buy

  • Port math signed by network design owner

  • Power, rack unit, and airflow constraints signed by data-hall / closet owner

  • Optics / DAC / AOC list attached when SFP or multi-rate uplinks are in play

  • Support / RMA path and serial capture process defined

  • Pilot quantity vs full rollout quantity decided with dates

  • Firmware and baseline config ownership named




Product-page Q&A worth capturing in the RFQ



  • What is the switching capacity of QFX5220-32CD-AFI? 25.6 Tbps bidirectional throughput with 8 Bpps forwarding capacity.

  • Does QFX5220-32CD-AFI support EVPN-VXLAN? Yes, deployable in EVPN-VXLAN fabrics with centralized or distributed gateway architecture.

  • What airflow does QFX5220-32CD-AFI use? AFI (back-to-front) airflow with redundant (5+1) hot-pluggable fans.

  • What silicon powers the QFX5220-32CD-AFI? Broadcom Tomahawk 3 switch chip.

  • What is the latency of QFX5220-32CD-AFI? 660 ns cut-through latency.



How to use the product page during negotiation


Keep the conversation anchored to the same SKU everyone can open: Juniper QFX5220-32CD-AFI. When a quote uses a slightly different model string, stop and reconcile before price discussions continue. Ask suppliers to quote model + product code together, to state condition (Original New), and to confirm whether accessories implied by the description are included or sold separately.


For multi-site buys, freeze one golden line item and replicate it. Mixing near-sibling SKUs across buildings is a common source of asymmetric PoE, uplink, or licensing behavior that only appears after install.



Risk register specific to this SKU class



  • Identity risk: long model names and CMCTO-style strings get truncated in ERP fields—preserve the full code.

  • Assumption risk: series reputation is not a substitute for the port map on this page.

  • Lead-time risk: if availability moves, re-validate that the replacement SKU is not a different power or uplink profile.

  • Integration risk: management tooling, AAA, and telemetry agents should be tested on the pilot unit.

  • Documentation risk: if installers only receive a price list line, they will guess; attach this checklist to the work order.



Summary


Juniper QFX5220-32CD-AFI is a good candidate only when the verified identity and interface story match the design you intend to operate for the next hardware cycle. Use the linked product page as the shared source for model string, product code, and description text; keep unlisted performance claims out of the purchase justification until they are confirmed by your own design package. Order deliberately, pilot once, then scale the same SKU.