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Fix shrink expand #65

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merged 2 commits into from
Jan 10, 2025
Merged

Fix shrink expand #65

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11c2943
Remove outdated warning from shrink fabric
pau-hedgehog Jan 9, 2025
ab6cded
Add instructions to replace a switch
pau-hedgehog Jan 9, 2025
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17 changes: 9 additions & 8 deletions docs/user-guide/shrink-expand.md
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Expand Up @@ -22,22 +22,23 @@ connections may differ based on the `Switch` role given to the device. For more
section](connections.md).

!!! note
Switch devices should be booted in `ONIE` installation mode to install SONiC OS and configure the Fabric
Switch devices need to be booted in `ONIE` installation mode to install SONiC OS and configure the Fabric
Agent.

Ensure the management port of the switch is connected to fabric management network.

### Remove a switch from the existing fabric

Before you decommission a switch from the Hedgehog Fabric, several preparation steps are necessary.

!!! warning
Currently the `Wiring` diagram used for initial deployment is saved in
`/var/lib/rancher/k3s/server/manifests/hh-wiring.yaml` on the `Control` node. Fabric will sustain objects within the
original wiring diagram. In order to remove any object, first remove the dedicated API objects from this file. It is
recommended to reapply `hh-wiring.yaml` after changing its internals.
Before you decommission a switch from the Hedgehog Fabric, several preliminary steps are necessary.

* If the `Switch` is a `Leaf` switch (including `Mixed` and `Border` leaf configurations), remove all `VPCAttachments` bound to all switches `Connections`.
* If the `Switch` was used for `ExternalPeering`, remove all `ExternalAttachment` objects that are bound to the `Connections` of the `Switch`.
* Remove all connections of the `Switch`.
* At last, remove the `Switch` and `Agent` objects.

### Replace a switch from the existing fabric

To replace a switch in the fabric, you do not need to remove and re-add it. Instead:

* Edit the existing switch object to update the `MAC` address or `Serial` number of the new hardware.
* Reinstall the switch, following the boot `ONIE` process used when it was first added to the fabric.
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