topic Re: Misconfigured Broadcast Domain in ONTAP Discussions

Misconfigured Broadcast Domain

PaoloA — Wed, 04 Jun 2025 10:07:39 GMT

Hi all,

I am faced with a problem that seems simple but I can not solve.

Version NetApp 9.8p5
4 Node (2 node AFF + 2 node FAS)

Event logs report this error continuously:

vifmgr.reach.miscfg: Network port e0M on node cluster-3 cannot reach its expected broadcast domain Default:mgmt.

vifmgr.reach.miscfg: Network port e0M on node cluster-4 cannot reach its expected broadcast domain Default:mgmt.

network port reachability show:

cluster-1 (AFF):

e0M Default:mgmt multi-domain-reachability

e0c Default:mgmt multi-domain-reachability (NOT USED)

cluster-2 (AFF):

e0M Default:mgmt multi-domain-reachability

e0c Default:mgmt multi-domain-reachability (NOT USED)

cluster-3 (FAS):

e0M Default:mgmt multi-domain-reachability

e0c Default:BD_notused no-reachability (NOT USED)

cluster-4 (FAS):

e0M Default:mgmt multi-domain-reachability

e0c Default:BD_notused no-reachability (NOT USED)

Network port reachability show -node cluster-3 (detail) :

e0M Default:mgmt misconfigured-reachability

Actual Reachability: Default:BD_A244

Unreachable Ports: cluster-4:e0M, cluster-2:e0M,

cluster-2:e0c, cluster-1:e0M, cluster-1:e0c

Network portreachability show -node cluster-4 (detail):

e0M Default:mgmt misconfigured-reachability

Actual Reachability: Default:BD_A244

Unreachable Ports: cluster-3:e0M, cluster-2:e0M,

cluster-2:e0c, cluster-1:e0M, cluster-1:e0c

I tried ping from nodes 3 and 4 to nodes 1 and 2 ...all nodes work correctly via e0M port.

I don’t have connectivity problems but I can’t delete this message.

Do you have any suggestions on how to resolve ?

Thanks !!!!!

Re: Misconfigured Broadcast Domain

TMACMD — Fri, 10 Dec 2021 17:12:01 GMT

What does broadcast-domain show look like?

How about net port show?

i typically see this when I have mgmt ports (like e0M) connected to a switch as an access port but also have other ports like either an ifgrp or another high speed port connected to a switch as a trunk port with VLAN tagging and there is a vlan being used that is also the same as the access port of the mgmt port.

Re: Misconfigured Broadcast Domain

PaoloA — Mon, 13 Dec 2021 11:14:01 GMT

Hi TMAC_CTG ,

thanks !

These are the output :

network port show:

Node: cluster-1
Speed(Mbps) Health
Port IPspace Broadcast Domain Link MTU Admin/Oper Status
--------- ------------ ---------------- ---- ---- ----------- --------
a0b-244 Default BD_B244 up 1500 -/- healthy
e0M Default mgmt up 1500 auto/1000 healthy
e0c Default mgmt up 1500 1000/1000 healthy

Node: cluster-2
Speed(Mbps) Health
Port IPspace Broadcast Domain Link MTU Admin/Oper Status
--------- ------------ ---------------- ---- ---- ----------- --------
a0a-244 Default BD_A244 up 1500 -/- healthy
e0M Default mgmt up 1500 auto/1000 healthy
e0c Default mgmt up 1500 1000/1000 healthy

Node: cluster-3
Speed(Mbps) Health
Port IPspace Broadcast Domain Link MTU Admin/Oper Status
--------- ------------ ---------------- ---- ---- ----------- --------
a0a-244 Default BD_A244 up 1500 -/- healthy
e0M Default mgmt up 1500 auto/1000 healthy
e0c Default BD_notused down 1500 auto/- -

Node: cluster-4
Speed(Mbps) Health
Port IPspace Broadcast Domain Link MTU Admin/Oper Status
--------- ------------ ---------------- ---- ---- ----------- --------
a0a-244 Default BD_A244 up 1500 -/- healthy
e0M Default mgmt up 1500 auto/1000 healthy
e0c Default BD_notused down 1500 auto/- -

broadcast-domain show (ports e0c and e0M)

cluster-s1::> broadcast-domain show

Name Domain Name MTU Port List Status Details
------- ----------- ------ ----------------------------- --------------
Default BD_notused 1500
cluster-4:e0c complete
cluster-3:e0c complete

mgmt 1500
cluster-4:e0M complete
cluster-3:e0M complete
cluster-2:e0M complete
cluster-2:e0c complete
cluster-1:e0M complete
cluster-1:e0c complete

The management ports have been set only on the respective e0M.

The e0C port has been inserted in the BD of mgmt but is not used and is without IP. While in nodes 3 and 4 it has not even been inserted in the BD of mgmt.

Re: Misconfigured Broadcast Domain

TMACMD — Mon, 13 Dec 2021 15:07:20 GMT

Ok, you need to figure out what you want to do here. All the e0M ports should be in the same VLAN/Broadcast-domain and configured as ACCESS ports on the switch.

What is the purpose of e0c? If you are using it as MGMT, then plug in to switches, make sure they are access ports and on the same VLAN as e0M. If you do not plan to use them, remove the physical connections.

If you try to create any tagged VLAN (like 244 in your case), the tagged VLAN should NOT be the same as the ACCESS VLAN for e0M otherwise the reachability will be confused. I suspect that is your case.

MGMT and data should be different VLANs.

e0M should be a dedidcated MGMT VLAN and everything else should be tagged VLANs that are NOT MGMT.