MAAS

MTU should be a set on the VLAN, and able to override on the interface

Bug #1508056 reported by Blake Rouse
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
MAAS
Fix Released
High
Blake Rouse
MAAS 1.9.0

Bug Description

Currently in MAAS 1.9 you set the MTU on the interface itself. This requires a lot of work to go change it on every interface connected to a fabric. The MTU is normally specific to the VLAN, so it should be a property on the VLAN. So when an interface is on that VLAN it gets that MTU value.

The user will still be able to override this value by setting a different MTU value on the interface.

See original description
Tags: networking

Related branches

lp:~blake-rouse/maas/fix-1508056
Mike Pontillo (community): Approve
Andres Rodriguez (community): Approve
Diff: 846 lines (+636/-15)
13 files modified
src/maasserver/api/interfaces.py (+5/-0)
src/maasserver/api/nodes.py (+1/-0)
src/maasserver/api/tests/test_interfaces.py (+1/-0)
src/maasserver/forms_vlan.py (+5/-0)
src/maasserver/migrations/0190_add_mtu_to_vlan_model.py (+547/-0)
src/maasserver/models/interface.py (+9/-0)
src/maasserver/models/tests/test_filesystemgroup.py (+3/-2)
src/maasserver/models/tests/test_interface.py (+16/-0)
src/maasserver/models/vlan.py (+11/-0)
src/maasserver/preseed_network.py (+2/-1)
src/maasserver/tests/test_forms_vlan.py (+33/-11)
src/maasserver/tests/test_preseed_network.py (+2/-1)
src/maasserver/websockets/handlers/tests/test_vlan.py (+1/-0)
Blake Rouse (blake-rouse)
Changed in maas:
milestone: none → 1.9.0
Revision history for this message
Dean Henrichsmeyer (dean) wrote :

MTU actually needs to be set everywhere. Setting it on the switch without setting it on the interface won't help you.

Revision history for this message
Blake Rouse (blake-rouse) wrote :

The goal here is to set it on the fabric which will set it on every interface that is connected to that Fabric in MAAS. This helps the user by not requiring them to go to every interface in MAAS and setting the MTU.

Still need to determine if the MTU can be different inside of a tagged VLAN in a Fabric. In that case the MTU needs to be set on the VLAN object instead of the Fabric object.

Kasia Galandziej (kasia-galandziej)
tags: added: ui
Revision history for this message
Andres Rodriguez (andreserl) wrote :

My understanding is that the MTU can be set differently per switch port, which would mean that we cannot set the MTU per fabric.

Blake Rouse (blake-rouse)
summary: - MTU should be a setting on the Fabric not on the interface
+ MTU should be a sets on the VLAN
description: updated
tags: added: networking
tags: removed: ui
Andres Rodriguez (andreserl)
summary: - MTU should be a sets on the VLAN
+ MTU should be a set on the VLAN, and able to override on the interface
Blake Rouse (blake-rouse)
Changed in maas:
status: Triaged → In Progress
assignee: nobody → Blake Rouse (blake-rouse)
MAAS Lander (maas-lander)
Changed in maas:
status: In Progress → Fix Committed
Andres Rodriguez (andreserl)
Changed in maas:
status: Fix Committed → Fix Released
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