Enable Child Interfaces to assigned to Parent LAG #5255

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opened 2025-12-29 19:25:58 +01:00 by adam · 1 comment
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Originally created by @Daniel-Dietz on GitHub (Aug 31, 2021).

NetBox version

v3.0.0

Feature type

Change to existing functionality

Proposed functionality

Allow LAG Interfaces to have Child Interfaces as members.

See Closed bug #707

Use case

This is a required function for example fully modular Switches, as the Parent does not have any interfaces on its one. LAGs are not limited to one Child-Module, but for redundancy are split between two or more Modules.

Database changes

No response

External dependencies

No response

Originally created by @Daniel-Dietz on GitHub (Aug 31, 2021). ### NetBox version v3.0.0 ### Feature type Change to existing functionality ### Proposed functionality Allow LAG Interfaces to have Child Interfaces as members. See Closed bug #707 ### Use case This is a required function for example fully modular Switches, as the Parent does not have any interfaces on its one. LAGs are not limited to one Child-Module, but for redundancy are split between two or more Modules. ### Database changes _No response_ ### External dependencies _No response_
adam added the type: feature label 2025-12-29 19:25:58 +01:00
adam closed this issue 2025-12-29 19:25:58 +01:00
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Owner

@jeremystretch commented on GitHub (Aug 31, 2021):

As I explained yesterday in #7013, this limitation is intentional, as child devices do not share a control plane. Switch line cards should not be modeled as child devices; this is clearly called out in the documentation.

@jeremystretch commented on GitHub (Aug 31, 2021): As I explained yesterday in #7013, this limitation is intentional, as child devices do not share a control plane. Switch line cards should not be modeled as child devices; this is clearly called out [in the documentation](https://netbox.readthedocs.io/en/stable/models/dcim/devicebay/).
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Reference: starred/netbox#5255