--- title: The Mythical Use Cases: Traffic Engineering for Data... description: Vendor product managers often cite high-volume network-based backups as a justification for traffic engineering in data center fabrics, but this post argues... canonical: https://daily.dev/posts/the-mythical-use-cases-traffic-engineering-for-data-center-backups-ipspace-net-blog-a3qncyypo twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: The Mythical Use Cases: Traffic Engineering for Data Center Backups « ipSpace.net blog | daily.dev og:description: Vendor product managers often cite high-volume network-based backups as a justification for traffic engineering in data center fabrics, but this post argues... og:url: https://daily.dev/posts/the-mythical-use-cases-traffic-engineering-for-data-center-backups-ipspace-net-blog-a3qncyypo og:image: https://api.daily.dev/og/posts/a3QNCYYpo.png og:image:alt: The Mythical Use Cases: Traffic Engineering for Data Center Backups « ipSpace.net blog og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # The Mythical Use Cases: Traffic Engineering for Data Center Backups « ipSpace.net blog **[ipSpace.net Blog](https://daily.dev/sources/ipspace)** · 4 min read · 0 upvotes · 0 comments ## Summary Vendor product managers often cite high-volume network-based backups as a justification for traffic engineering in data center fabrics, but this post argues that claim is largely a myth for well-designed environments. Key reasons: backup traffic is bottlenecked by backup server and storage performance, not fabric links; a 1:4 server-to-fabric link speed ratio means even full backup server saturation only hits ~25% of a single uplink; modern ASICs with dynamic load balancing (e.g., Cisco ACI) can handle congestion automatically; and traditional routing tricks can spread load further. A simpler alternative is a dedicated out-of-band backup network using spare server ports and a separate switch, avoiding any impact on production traffic entirely. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Does backup traffic like Veeam actually require traffic engineering in a data center fabric? For most well-designed data center environments, traffic engineering for backup traffic is unnecessary. Backup traffic is bounded by backup server and storage throughput, not fabric links. With a standard 1:4 server-to-uplink speed ratio, all traffic to a single backup server saturates at most 25% of one uplink. Modern ASICs with dynamic load balancing (e.g., Cisco ACI) handle congestion automatically without complex traffic engineering. _Network engineers evaluating fabric design trade-offs find real-world counterarguments to vendor claims on daily.dev._ ### What is the simplest way to isolate backup traffic from production traffic in a data center? Connect a dedicated front-end switch to unused Ethernet ports on each server and to the central backup server, creating a physically separate backup network. This eliminates contention with production traffic entirely. The separate network must be Layer 2 or appear as a single subnet, since most servers lack VRF support and cannot maintain two default routes simultaneously. _Teams designing data center networks without overcomplicating them track practical architecture patterns like this on daily.dev._ ## Similar posts on daily.dev - [Converged north-south networks: the critical path for AI success](https://daily.dev/posts/converged-north-south-networks-the-critical-path-for-ai-success-heod2pxf8) · Cisco · 0 upvotes · 0 comments - [I Learned Traffic Optimization Before I Learned Cloud Computing. It Turns Out the Lessons Were the Same.](https://daily.dev/posts/i-learned-traffic-optimization-before-i-learned-cloud-computing-it-turns-out-the-lessons-were-the-s-jlsucohlx) · DevOps.com · 0 upvotes · 0 comments - [Racks, sprawl and the myth of redundancy: Why your failover isn’t as safe as you think](https://daily.dev/posts/racks-sprawl-and-the-myth-of-redundancy-why-your-failover-isn-t-as-safe-as-you-think-qqxvdsjma) · CSO Online · 0 upvotes · 0 comments - [I ran wired backhaul to every room in my house, and it was so worth it](https://daily.dev/posts/i-ran-wired-backhaul-to-every-room-in-my-house-and-it-was-so-worth-it-6dwggamr3) · XDA Developers · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/the-mythical-use-cases-traffic-engineering-for-data-center-backups-ipspace-net-blog-a3qncyypo) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"The Mythical Use Cases: Traffic Engineering for Data Center Backups « ipSpace.net blog","url":"https://daily.dev/posts/the-mythical-use-cases-traffic-engineering-for-data-center-backups-ipspace-net-blog-a3qncyypo","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/the-mythical-use-cases-traffic-engineering-for-data-center-backups-ipspace-net-blog-a3qncyypo"},"datePublished":"2026-08-11T08:54:54.138Z","dateModified":"2026-08-11T09:20:15.901Z","description":"Vendor product managers often cite high-volume network-based backups as a justification for traffic engineering in data center fabrics, but this post argues...","image":"https://media.daily.dev/image/upload/s--1KxV4ohY--/f_auto/v1722860400/public/Placeholder%2007","thumbnailUrl":"https://media.daily.dev/image/upload/s--1KxV4ohY--/f_auto/v1722860400/public/Placeholder%2007","isAccessibleForFree":true,"articleSection":"ipSpace.net Blog","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"ipSpace.net Blog","logo":"https://media.daily.dev/image/upload/s--xS7E82MT--/f_auto,q_auto/v1786438303/logos/ipspace?_a=BAMAMicg0","url":"https://daily.dev/sources/ipspace"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/the-mythical-use-cases-traffic-engineering-for-data-center-backups-ipspace-net-blog-a3qncyypo","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"ipSpace.net Blog","item":"https://daily.dev/sources/ipspace"},{"@type":"ListItem","position":3,"name":"The Mythical Use Cases: Traffic Engineering for Data Center Backups « ipSpace.net blog"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/the-mythical-use-cases-traffic-engineering-for-data-center-backups-ipspace-net-blog-a3qncyypo#faq","mainEntity":[{"@type":"Question","name":"Does backup traffic like Veeam actually require traffic engineering in a data center fabric?","acceptedAnswer":{"@type":"Answer","text":"For most well-designed data center environments, traffic engineering for backup traffic is unnecessary. Backup traffic is bounded by backup server and storage throughput, not fabric links. With a standard 1:4 server-to-uplink speed ratio, all traffic to a single backup server saturates at most 25% of one uplink. Modern ASICs with dynamic load balancing (e.g., Cisco ACI) handle congestion automatically without complex traffic engineering. Network engineers evaluating fabric design trade-offs find real-world counterarguments to vendor claims on daily.dev."}},{"@type":"Question","name":"What is the simplest way to isolate backup traffic from production traffic in a data center?","acceptedAnswer":{"@type":"Answer","text":"Connect a dedicated front-end switch to unused Ethernet ports on each server and to the central backup server, creating a physically separate backup network. This eliminates contention with production traffic entirely. 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