Cannot change MTU or NIC for a Network/vlan

[ep1p]

Is your feature request related to a problem? Please describe.
There are three features to do with Networks for a host that are missing in Xen Orchestra that are present in XCP-ng Center which are stopping us retiring it.

• You cannot edit the MTU for a network or VLAN.
• You cannot change the Network (NIC) that a VLAN is using on a host (for example if you need to move VLANs on to a different NIC)
• You cannot add IP settings on a Network (In this instance, I want to bring up a 10G link to a switch we use for migration VLANs between hosts but there is no way to add an IP address on this interface - you can edit an existing one, but not add one)

All of these things have been possible in XCP-ng Center (and XenCenter) for years but they aren't present in XO.

Describe the solution you'd like
I would like to retire XCP-ng Center but XO needs to cover all these features first :-)

Describe alternatives you've considered
I assume these changes are possible via CLI but XCP-ng Center provides a GUI to do this that doesn't involve people needing to SSH to the server.

[olivierlambert]

Hello @ep1p

Can you list the equivalent xe commands or at worst XenCenter screenshot for each feature, so we can be sure we are doing the right thing?

[ep1p]

• You cannot edit the MTU for a network or VLAN.

xe network-param-set uuid= MTU=9000

This may require toolstack-restart potentially according to citrix forums.

• You cannot change the Network (NIC) that a VLAN is using on a host (for example if you need to move VLANs on to a different NIC)

Not sure the exact commands, but it looks like this deletes the PIF, and then creates a new PIF, and changes the PIF UUID assigned to the network object of the VLAN to the new one. You can't change the PIF assigned to the VLAN if the VLAN is active on any running VM's.

• You cannot add IP settings on a Network (In this instance, I want to bring up a 10G link to a switch we use for migration VLANs between hosts but there is no way to add an IP address on this interface - you can edit an existing one, but not add one)

I thinks this is about equivalent to what xencenter does..

xe pif-reconfigure-ip uuid=network-uuid mode=Static IP=10.0.0.3 netmask=255.255.255.240
xe pif-param-set uuid=network-uuid other-config:management_purpose="Migration VLAN"

Thanks,

John

[olivierlambert]

You can add IP settings on a network in XO. In the host/network views, in the "Mode" row, click on "None" and select Static or DHCP. So it will be only the first 2 points, right?

[ep1p]

You can add IP settings on a network in XO. In the host/network views, in the "Mode" row, click on "None" and select Static or DHCP. So it will be only the first 2 points, right?

Ok yes, thanks for pointing that out! Maybe some UI improvements to make that more obvious as I hadn't figured out that you could do that :-)

[olivierlambert]

Yes we know and those UI improvements will be done in XO 6.

[andrew64k]

Restarting the toolstack is enough after a MTU change (tested on XCP 8.3).

[julien-f]

We should make the MTU editable in the view Host/Network.

[julien-f]

We need to check how it's done in XenCenter.

[olivierlambert]

@julien-f so in fact that should be done in the Pool/network tab, MTU is set on a network object, not a PIF. XAPI should handle the MTU change on the PIF object automatically.

[julien-f]

And network.MTU is read-write, easier then 👍

[olivierlambert]

It's done since 2 releases ago, closing then.