NetApp Multi LACP unreachable Ports

DreßlerIT — Wed, 04 Jun 2025 09:43:19 GMT

Hello everybody,

I've been racking my brain over this problem for a long time. I have unreachable Ports on the NetApp side although the status of a0a is healthy.

I have a Netapp FAS2720 and one Cisco Stack C9300X-12Y (two switches).

Configured a LAG with Multimode LACP and IP based load distribution, a0a on both nodes. Following configuration:

NetApp_Cluster::> bro show
(network port broadcast-domain show)
IPspace Broadcast Update
Name Domain Name MTU Port List Status Details
------- ----------- ------ ----------------------------- --------------
Cluster Cluster 9000
node02:e0a complete
node02:e0b complete
node01:e0a complete
node01:e0b complete
Default data 1500
node02:a0a complete
node01:a0a complete
mgmt 1500
node02:e0M complete
node01:e0M complete
vlan100 1500
- -
vlan161 1500
- -
5 entries were displayed.

NetApp_Cluster::> network port show

Node: node01
Speed(Mbps) Health
Port IPspace Broadcast Domain Link MTU Admin/Oper Status
--------- ------------ ---------------- ---- ---- ----------- --------
a0a Default data up 1500 -/- healthy
e0M Default mgmt up 1500 auto/1000 healthy
e0a Cluster Cluster up 9000 auto/10000 healthy
e0b Cluster Cluster up 9000 auto/10000 healthy
e0c Default - up 1500 auto/10000 healthy
e0d Default - down 1500 auto/- -
e0e Default - up 1500 auto/10000 healthy
e0f Default - down 1500 auto/- -

Node: node02
Speed(Mbps) Health
Port IPspace Broadcast Domain Link MTU Admin/Oper Status
--------- ------------ ---------------- ---- ---- ----------- --------
a0a Default data up 1500 -/- healthy
e0M Default mgmt up 1500 auto/1000 healthy
e0a Cluster Cluster up 9000 auto/10000 healthy
e0b Cluster Cluster up 9000 auto/10000 healthy
e0c Default - up 1500 auto/10000 healthy
e0d Default - down 1500 auto/- -
e0e Default - up 1500 auto/10000 healthy
e0f Default - down 1500 auto/- -
16 entries were displayed.

NetApp_Cluster::> network port ifgrp show
Port Distribution Active
Node IfGrp Function MAC Address Ports Ports
-------- ---------- ------------ ----------------- ------- -------------------
node01
a0a ip d2:39:ea:a9:4a:08 full e0c, e0e
node02
a0a ip d2:39:ea:a9:4b:38 full e0c, e0e
2 entries were displayed.

NetApp_Cluster::> network port ifgrp show -fields mode
node ifgrp mode
--------------- ----- --------------
node01 a0a multimode_lacp
node02 a0a multimode_lacp

On the Cisco Switch Stack I configured Portchannel 1 containing NetApp node01 Port e0c and Port e0e and Portchannel 2 containing NetApp node02 Port e0c and Port e0e.

Portchannel configuration:

interface TwentyFiveGigE1/0/2
description ### NetApp node02 e0e ###
switchport trunk native vlan 141
switchport mode trunk
channel-group 2 mode active
!
interface TwentyFiveGigE1/0/3
description ### NetApp node01 e0e ###
switchport trunk native vlan 141
switchport mode trunk
channel-group 1 mode active

interface TwentyFiveGigE2/0/2
description ### NetApp node02 e0c ###
switchport trunk native vlan 141
switchport mode trunk
channel-group 2 mode active
!
interface TwentyFiveGigE2/0/3
description ### NetApp node01 e0c ###
switchport trunk native vlan 141
switchport mode trunk
channel-group 1 mode active

My problem is that I have unreachable Ports in the LAG but also on e0c and e0e.

NetApp_Cluster::> network port reachability show -detail

Node Port Expected Reachability Reachability Status

------------ -------- ---------------------------- --------------------------

node01

a0a Default:data multi-domain-reachability

Actual Reachability: Default:mgmt, Default:data

Unreachable Ports: node01:e0c, node01:e0e

Unexpected Ports: node02:e0M, node01:e0M

e0c Default:data multi-domain-reachability

Actual Reachability: Default:mgmt, Default:data

Unreachable Ports: node02:e0c, node01:e0e

Unexpected Ports: node02:e0M

e0e Default:data ok

Actual Reachability: Default:data

Unreachable Ports: node02:a0a, node02:e0e,

node01:e0c

Unexpected Ports: node01:e0M

node02

a0a Default:data multi-domain-reachability

Actual Reachability: Default:mgmt, Default:data

Unreachable Ports: node02:e0c, node02:e0e

Unexpected Ports: node02:e0M, node01:e0M

e0c Default:data multi-domain-reachability

Actual Reachability: Default:mgmt, Default:data

Unreachable Ports: node02:e0e, node01:e0e

Unexpected Ports: node01:e0M

e0e Default:data ok

Actual Reachability: Default:data

Unreachable Ports: node02:e0c, node01:a0a,

node01:e0c

Unexpected Ports: node02:e0M

Does anyone have an idea why this is happening or a tip for me in which direction I can look?

Thank you all in advance!

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NetApp Multi LACP unreachable Ports