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LACP not working due to LACPDUs not incrementing

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84
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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • Ontap 9.3 and above
  • Multimode LACP

Issue

  • Physical ports are up but IFGRPs are showing down.

ifgrp down.png

  • IFGRP showing down both ports, example:
Cluster::> network port ifgrp show
Port     Distribution                           Active
Node    ifgrp    Function     MAC Address       Ports   Ports
------  -------  ------------ --------------    ------- ---------------
node0   a0a      ip           02:a0:98:11:22:33 none    e0c
  • LACPDUs not incrementing

Note: This counter was added to ifconfig -v in ONTAP 9.3

::> system node run -node <node> -command ifconfig -v

a0a: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000
options=6407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
ether 02:a0:98:11:22:33
media: Ethernet autoselect
status: active
groups: lagg
laggproto lacp lagghash l3
lagg options:
flags=11<USE_FLOWID,LACP_STRICT>
flowid_shift: 16
lagg statistics:
active ports: 0 <-- No ports active in the ifgrp
flapping: 0
lag id: [(8000,02-A0-98-11-22-33,0032,0000,0000),
(8000,AA-BB-CC-DD-EE-FF,0037,0000,0000)]
laggport: e0d flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
[(8000,02-A0-98-11-22-33,0032,8000,0006),
(8000,AA-BB-CC-DD-EE-FF,0037,8000,00B9)]
input/output LACPDUs: 0 / 14099<--- LACPDU count, this should increment over time
laggport: e0c flags=18<COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
[(8000,02-A0-98-11-22-33,0032,8000,0007),
(8000,AA-BB-CC-DD-EE-FF,0037,8000,043A)]
input/output LACPDUs: 0 / 14099<--- LACPDU count, this should increment over time
​​

  • Wait 2 minutes and run it again to validate if LACPDUs incrementing

a0a: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000
options=6407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
ether 02:a0:98:11:22:33
media: Ethernet autoselect
status: active
groups: lagg
laggproto lacp lagghash l3
lagg options:
flags=11<USE_FLOWID,LACP_STRICT>
flowid_shift: 16
lagg statistics:
active ports: 0 <-- No ports active in the ifgrp
flapping: 0
lag id: [(8000,02-A0-98-11-22-33,0032,0000,0000),
(8000,AA-BB-CC-DD-EE-FF,0037,0000,0000)]
laggport: e0d flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
[(8000,02-A0-98-11-22-33,0032,8000,0006),
(8000,AA-BB-CC-DD-EE-FF,0037,8000,00B9)]
input/output LACPDUs: 0 / 14539<--- LACPDU count, this should increment over time
laggport: e0c flags=18<COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
[(8000,02-A0-98-11-22-33,0032,8000,0007),
(8000,AA-BB-CC-DD-EE-FF,0037,8000,043A)]
input/output LACPDUs: 0 /14539<--- LACPDU count, this should increment over time

Sun Nov 12 11:37:16 -0800 [node-01: intr: netif.linkDown:info]: Ethernet a0a: Link down, check cable.
Sun Nov 12 11:37:16 -0800 [node-01: intr: netif.linkDown:info]: Ethernet a0a-1x4: Link down, check cable.
Sun Nov 12 11:37:16 -0800 [node-01: intr: netif.linkDown:info]: Ethernet a0a-1x7: Link down, check cable.
Sun Nov 12 11:37:16 -0800 [node-01: intr: netif.linkDown:info]: Ethernet a0a-1x9: Link down, check cable.
Sun Nov 12 11:37:16 -0800 [node-01: vifmgr: vifmgr.portdown:notice]: A link down event was received on node node-01, port a0a.
Sun Nov 12 11:37:16 -0800 [node-01: vifmgr: vifmgr.portdown:notice]: A link down event was received on node node-01, port a0a-1x4.
Sun Nov 12 11:37:16 -0800 [node-01: vifmgr: vifmgr.portdown:notice]: A link down event was received on node node-01, port a0a-1x7.
Sun Nov 12 11:37:16 -0800 [node-01: vifmgr: vifmgr.portdown:notice]: A link down event was received on node node-01, port a0a-1x9.

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