Field Notes
The Townsend Networks Blog
Practical intelligence for hardware buyers: model comparisons, lead times, end-of-life deadlines, refurbished TCO math, and what actually matters in the secondary market. Written by people who test this gear for a living.
The AI Buildout Is Squeezing Enterprise Switch Supply: What It Means for Your Refresh
Hyperscalers are absorbing switch silicon and optics capacity at a record pace. Here's what the AI data-center boom means for enterprise lead times, pricing, and how to plan a refresh around it.
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Cisco End-of-Life Deadlines, 2026-2028: What's Expiring and What to Do About It
ASA 5500-X support ends this August. Catalyst 3650 goes dark in October. A field guide to the Cisco last-day-of-support dates hitting between now and 2028, and the migrate, sustain, or sell decision for each.
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Refurbished vs. New in 2026: The Real TCO Math for Network Hardware
Refurbished enterprise gear typically runs 40-90% below list. Even Cisco's own remanufactured line prices 25-70% under. The honest TCO comparison: where the savings are real, where new still wins, and how to avoid the counterfeit trap.
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Wi-Fi 7 and 800G Are Here. Here's What a Mid-Size Enterprise Actually Needs
Wi-Fi 7 APs are shipping from every major vendor, and 800G optics dominate the AI headlines. A practical guide to which upgrades matter for a mid-size network in 2026, and the switch-layer costs nobody puts on the first slide.
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Decommissioning a Rack? How to Turn Retired Network Gear into Budget
Retired switches and routers are an asset, not a disposal problem. What holds value in 2026, why timing beats haggling, and the data-sanitization and chain-of-custody standards to demand before anything leaves the building.
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The Role of MPC7E-MRATE in Optimizing Network Performance
The Juniper MPC7E-MRATE enhances network efficiency with flexible port configurations, high-speed 100GbE support, and advanced traffic performance management.
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How the Juniper MX204 Powers Multi-Cloud Networking
The Juniper MX204 delivers 400 Gbps throughput, high-density 10GbE, 25GbE, and 100GbE ports, and advanced automation for seamless multi-cloud networking.
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Expand Your Network Capacity | EX4600-EM-8F Expansion Module
Practical and Real-world Explanation of Expanding Network Capabilities of EX4600-EM-8F Expansion Module. Buy Refurbished & New Modules on 3 Years of Warranty.
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Scaling Your Data Center with the Juniper QFX5120-48Y Switch
Juniper QFX5120-48Y, a powerful 25G Ethernet switch with 48x 25GbE ports and 8x 100GbE uplinks, designed for high-speed enterprise and data center networking.
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Compact and Efficient: Exploring the Juniper EX2300-C-12T Switch
Juniper EX2300-C-12T is Suitable for small and medium-sized companies. It has layer 2 and layer 3 management capabilities, making it a stand-alone solution.
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Juniper QFX Series | The Backbone of Modern Data Center Networks
Juniper QFX Series are high-end networking best data centers, big companies, and clouds. QFX also provides features like programmability and integration.
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How to Choose Between Different Juniper EX Switch Models for Enterprise Networks
Juniper EX Switches are one of the fast rated switches for small and medium size companies. Townsend Networks deals in all kinds of switches and network equipment.
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Why the Juniper MX304 Is a Game-Changer for Edge Networking
Juniper MX304 Series is a kind of magical machine for networking professionals. It can handle up to 5 Tbps of traffic load with low latency and high bandwidth.
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How Arista is leading the race in 100G and 400G Hardware
The industry's leader in high-speed networking is Arista Networks' 7368X4 series. It is available with Line-Speed 100G, 200G, and 400G.
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License Options for the Brocade 6740T Switch: Capacity on Demand
The Brocade 6740T and 6740T-1G are high-performing Top-of-Rack (ToR) Ethernet fabric switches built to address emerging data center requirements. These include 1GbE, 10GbE, and 40GbE, which provide high performance with an acceptable amount of latency. Intended for modern networks, these switches have different functionality options called Capacity on Demand (CoD) that enable organizations to expand their capabilities and performance.
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The Role of Juniper MX204 in Multi-Cloud Networking Solutions
Explore why Juniper MX204 Routers are a preferred choice these days for Multi-Cloud Networking Solutions. Detailed overview of the advantages and features.
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Understanding Arista DCS7050CX3 vs DCS7050SX3: A Detailed Comparison
A Detailed Comparison of Arista DCS7050CX3 and DCS7050SX3. Figure out the differences and similarities between these 2 popular models of Arista Family.
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Choosing the Right Arista DCS Switch for Your Business: A Quick Guide
In the current world that is dominated by the use of technology, businesses require reliable networks that will address the issue of data flow. To that extent, Arista Networks, which specializes in high-performance switches, currently provides a number of Arista DCS switches that are suitable for organizations of all sizes.
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Future-Proofing Your Network with the Juniper MX Series
Juniper MX Series is a series of flexible, high-density routers intended to meet the various networking requirements of businesses, data centers, and telecom operators. Well known for its scalability, which is the best in the industry, the MX Series enables deployment of the network on a small edge to a large global scale.
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Enhancing Connectivity with Brocade ICX Switches
High availability and scalability are the key factors that determine the need for networking in today’s business world. When talking about networking needs, Brocade ICX switches meet the challenges of modern enterprise networks. With stacking capabilities, high availability, efficiency, and enhanced security, the Brocade ICX series is well-suited for small office and branch installations as well as data center environments.
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Juniper EX4300 vs EX4600: Which Network Switch Is Right for You?
The Juniper EX4300 switch is flexible and economical for SMBs or small and medium enterprises. It can accommodate up to 48 GbE interfaces and up to four 40GbE uplinks, which makes it perfect for companies seeking reliable performance rather than a large network, which can only have up to four 40GbE connections. The EX4300 is stackable, and in environments, up to 10 units can be managed as a single logical device, which is beneficial where networks are expanding.
Read more →Refreshing, or decommissioning?
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