--- title: Repost: State of Lisp Implementations (2024) «... description: Béla Várkonyi, who uses LISP for resilient ground-to-airplane networks, expresses concern about the declining state of LISP implementations. LISP has already... canonical: https://daily.dev/posts/repost-state-of-lisp-implementations-2024-ipspace-net-blog-5meesmaxg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Repost: State of Lisp Implementations (2024) « ipSpace.net blog | daily.dev og:description: Béla Várkonyi, who uses LISP for resilient ground-to-airplane networks, expresses concern about the declining state of LISP implementations. LISP has already... og:url: https://daily.dev/posts/repost-state-of-lisp-implementations-2024-ipspace-net-blog-5meesmaxg og:image: https://api.daily.dev/og/posts/5MEeSmAxg.png og:image:alt: Repost: State of Lisp Implementations (2024) « 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. # Repost: State of Lisp Implementations (2024) « ipSpace.net blog **[ipSpace.net Blog](https://daily.dev/sources/ipspace)** · 2 min read · 0 upvotes · 0 comments ## Summary Béla Várkonyi, who uses LISP for resilient ground-to-airplane networks, expresses concern about the declining state of LISP implementations. LISP has already been removed from Cisco IOS XR, early third-party implementers have abandoned development, and ONOS/ODL implementations are orphaned. With no viable alternative suppliers and missing features like PUBSUB, Várkonyi's team may be forced to build their own LISP routers. The broader discussion highlights the risks of depending on niche networking technologies with limited vendor adoption, and touches on Cisco's apparent shift toward BGP EVPN over LISP for SD-Access campus networking. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Is LISP still supported in Cisco IOS XR? LISP has been removed from Cisco IOS XR. While Cisco has stated that EVPN support does not indicate retirement of LISP for SD-Access, its removal from IOS XR raises questions about the protocol's long-term future. No other major vendor has implemented LISP in production gear, and early third-party LISP implementers have stopped development, leaving gaps in features like PUBSUB. _Network engineers tracking Cisco's protocol roadmap find the latest vendor signals on daily.dev._ ## Similar posts on daily.dev - [The Never-Ending IPv6 Loopback Prefix Saga « ipSpace.net blog](https://daily.dev/posts/the-never-ending-ipv6-loopback-prefix-saga-ipspace-net-blog-4nlhgh10l) · ipSpace.net Blog · 0 upvotes · 0 comments --- Tags: [#networking](https://daily.dev/tags/networking), [#cisco](https://daily.dev/tags/cisco), [#lisp](https://daily.dev/tags/lisp) [View this post on daily.dev](https://daily.dev/posts/repost-state-of-lisp-implementations-2024-ipspace-net-blog-5meesmaxg) ```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":"Repost: State of Lisp Implementations (2024) « ipSpace.net blog","url":"https://daily.dev/posts/repost-state-of-lisp-implementations-2024-ipspace-net-blog-5meesmaxg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/repost-state-of-lisp-implementations-2024-ipspace-net-blog-5meesmaxg"},"datePublished":"2026-08-11T08:55:15.216Z","dateModified":"2026-08-11T09:33:45.873Z","description":"Béla Várkonyi, who uses LISP for resilient ground-to-airplane networks, expresses concern about the declining state of LISP implementations. 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While Cisco has stated that EVPN support does not indicate retirement of LISP for SD-Access, its removal from IOS XR raises questions about the protocol's long-term future. No other major vendor has implemented LISP in production gear, and early third-party LISP implementers have stopped development, leaving gaps in features like PUBSUB. Network engineers tracking Cisco's protocol roadmap find the latest vendor signals on daily.dev."}}]} ```