ifgrp and default-1 questions

joemama2023 — Wed, 04 Jun 2025 09:42:23 GMT

Hello,

I have an AFF-A250 version 9.12.1P7 with 4 new connections I need to configure.
I need to create a new SVM and use these 4 new connections all on the same layer 2 switch.
I'm having difficulty with the ifgrp (LAG) and broadcast domain portion of the task.

Using System Manager I created a Link Aggregation Group (ifgrp) mode (LACP) load distribution (IP based), a0b was created so was broadcast domain default-1.
Next I created the vlan a0b-1014, default-2 was created.
I renamed default-2 to bd-1014.
Can I delete the default-1 or was default-1 the one I should have renamed?

If I had used the cli, would I have not had this problem?

Thanks

Re: ifgrp and default-1 questions

TMACMD — Wed, 10 Jan 2024 02:54:25 GMT

Check out the man page for ifgrp create. You may find you will better served using port distribution instead of ip distribution.

when ports are physically connected ONTAP starts looking at layer 2 connectivity. They may get placed into broadcast domains automatically.

using the cli the process is something like this:

delete auto created broadcast domains with the single ports (like e0e etc, broadcast-domain delete -broad Default-*)

create the ifgrp

Add the ports to the ifgrp

if needed set the ifgrp to 9000 mtu

create vlans (which inherit the same mtu as the ifgrp)

Wait a couple minutes

I expect to see a broadcast domain with the ifgrp ports (node1:a0a, node2:a0a). I typically rename this to DoNotUse and leave it

I expect to see other broadcast domains for each vlan. I rename these as appropriate.

you could delete the bd with the ifgrp but if I recall ONTAP may complain about those“ports” Not 100% sure though

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ifgrp and default-1 questions

Re: ifgrp and default-1 questions