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title: Worth Reading: Single-Port LAGs « ipSpace.net blog
description: Lindsay Hill's idea of putting all switch/router ports into link aggregation groups (LAGs) — even single-port ones — offers two practical benefits: upgrading...
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og:description: Lindsay Hill's idea of putting all switch/router ports into link aggregation groups (LAGs) — even single-port ones — offers two practical benefits: upgrading...
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# Worth Reading: Single-Port LAGs « ipSpace.net blog

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

## Summary

Lindsay Hill's idea of putting all switch/router ports into link aggregation groups (LAGs) — even single-port ones — offers two practical benefits: upgrading link speed without touching layer-3 configuration, and performing link maintenance without triggering routing protocol flaps. LACP also provides bidirectional forwarding verification as an added bonus.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.ipspace.net/2023/09/worth-reading-single-port-lag>

## Questions this post answers

### What are the benefits of using single-port LAGs on all switch and router interfaces?

Single-port LAGs let you upgrade link speed without changing any layer-3 configuration, and perform link maintenance without causing a routing protocol flap. LACP also ensures bidirectional forwarding at the physical layer, which is a useful side benefit even when only one port is in the group.

_Network engineers weighing this pattern against their current design find the trade-offs discussed on daily.dev._

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---

Tags: [#networking](https://daily.dev/tags/networking)

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