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clarified vlan vs vlan id
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added sfomin author
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hellt committed Jan 17, 2024
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5 changes: 5 additions & 0 deletions docs/blog/.authors.yml
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Expand Up @@ -53,3 +53,8 @@ authors:
name: Reda Laichi
description: Principal Consulting Engineer
avatar: https://gitlab.com/rdodin/pics/-/wikis/uploads/5bf3dab5d3fb65077ed5658d32a03300/image.png

sfomin:
name: Sergey Fomin
description: SR Linux PLM
avatar: https://avatars.githubusercontent.com/u/7695
5 changes: 3 additions & 2 deletions docs/blog/posts/2024/srl-vlans.md
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authors:
- rdodin
- reda
- sfomin
---

# VLANs on SR Linux
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VLAN handling on SR Linux is nothing like Cisco and is based on the following core concepts:

1. VLANs are locally significant within the scope of a subinterface.
2. VLANs are configured on a subinterface level and define the action to be taken on the incoming/outgoing traffic - `pop`/`push` and `accept`/`drop`.
1. VLAN IDs (aka dot1q tags) are locally significant within the scope of a subinterface.
2. VLAN IDs are configured on a subinterface level and define the action to be taken on the incoming/outgoing traffic - `pop`/`push` and `accept`/`drop`.
3. The actual switching is powered by the network instances of type `mac-vrf` and one SR Linux instance can have multiple network instances of this type.

For visuals, here is a diagram that shows how VLANs are configured on SR Linux:
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