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title: Worth Reading: Faster than Dijkstra? « ipSpace.net blog
description: Bruce Davie's article argues that using a supposedly faster-than-Dijkstra algorithm in link-state routing protocols offers little practical benefit. Key data...
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# Worth Reading: Faster than Dijkstra? « ipSpace.net blog

**[ipSpace.net Blog](https://daily.dev/sources/ipspace)** · 1 min read · 0 upvotes · 0 comments

## Summary

Bruce Davie's article argues that using a supposedly faster-than-Dijkstra algorithm in link-state routing protocols offers little practical benefit. Key data points: modern deployments run a few thousand routers per area, and even back in 2003, Dijkstra's algorithm on a 2000-node emulated network completed in just 100ms. The conclusion is that past noise about needing new routing protocols was driven by poor implementations or academic curiosity rather than genuine operational need.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.ipspace.net/2026/03/worth-reading-faster-than-dijkstra>

## Questions this post answers

### How fast is Dijkstra's algorithm on a large network with 2000 nodes?

Running Dijkstra's algorithm on an emulated network with 2000 nodes took 100 milliseconds — and that measurement was made in 2003. Modern hardware is significantly faster, meaning the algorithm's performance is rarely a bottleneck in real-world link-state routing deployments, which typically run a few thousand routers per area.

_Network engineers evaluating routing algorithm trade-offs find the latest analysis on daily.dev._

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---

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