Interface group down after configuration change on switch

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Visibility:: Public

Votes:: 0

Category:: ontap-9

Specialty:: nas

Last Updated:

Applies to

ONTAP 9
LACP Interface Group (ifgroup)
Cisco Switches
(Virtual) Port-Channel

Issue

Interface group a0b is made of two links, however only one is physically connected

a0b: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=6407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
	ether f6:e9:d4:f4:35:40
	hwaddr f6:e9:d4:f4:35:40
	pcp 1
	laggproto lacp lagghash l3
	lagg options:
		flags=1<USE_FLOWID>
		flowid_shift: 16
	lagg statistics:
		active ports: 1
		flapping: 0
	lag id: [(8000,F6-E9-D4-F4-35-40,0032,0000,0000),
		 (0001,00-23-04-EE-BF-2D,801B,0000,0000)]
	laggport: e0f flags=20000<DEFAULT> state=41<ACTIVITY,DEFAULTED>
		[(8000,F6-E9-D4-F4-35-40,8008,8000,0008),
		 (FFFF,00-00-00-00-00-00,0000,FFFF,0000)]
		input/output LACPDUs: 0 / 0
	laggport: e0h flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
		[(8000,F6-E9-D4-F4-35-40,0032,8000,000A),
		 (0001,00-23-04-EE-BF-2D,801B,8000,4141)]
		input/output LACPDUs: 44310 / 44304

	slot 0: 1G/10G Ethernet Controller CNA EP 8324
		(Multiple Dual-port, QLogic CNA 8324(8362) rev. 2)
		e0f MAC Address:    00:a0:98:dc:48:91 (auto-unknown-fd-down)
		e0e MAC Address:    02:a0:98:dc:48:9c (auto-10g_sr-fd-up)
		e0h MAC Address:    f6:e9:d4:f4:35:40 (auto-10g_sr-fd-up)
		e0g MAC Address:    00:a0:98:dc:48:92 (auto-unknown-fd-down)
		Device Type:        EP8324N

Surviving link goes down and comes back up, but traffic can't be served

Thu Aug 11 16:54:42 +0200 [NetApp-2-W81-03: intr: netif.linkDown:info]: Ethernet e0h: Link down, check cable.
Thu Aug 11 16:54:42 +0200 [NetApp-2-W81-03: intr: netif.linkDown:info]: Ethernet a0b: Link down, check cable.
Thu Aug 11 16:54:42 +0200 [NetApp-2-W81-03: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0b, port e0h has transitioned to an inactive state. The interface group is in a degraded state.
Thu Aug 11 16:54:42 +0200 [NetApp-2-W81-03: intr: netif.linkDown:info]: Ethernet a0b-98: Link down, check cable.
Thu Aug 11 16:54:45 +0200 [NetApp-2-W81-03: vifmgr: vifmgr.portdown:notice]: A link down event was received on node NetApp-2-W81-03, port e0h.
Thu Aug 11 16:54:45 +0200 [NetApp-2-W81-03: vifmgr: vifmgr.portdown:notice]: A link down event was received on node NetApp-2-W81-03, port a0b.
Thu Aug 11 16:54:45 +0200 [NetApp-2-W81-03: vifmgr: vifmgr.portdown:notice]: A link down event was received on node NetApp-2-W81-03, port a0b-98.
Thu Aug 11 16:54:45 +0200 [NetApp-2-W81-03: vifmgr: vifmgr.lifmoved.linkdown:notice]: LIF sv_svm_sw100_esx_dmz_01_nfs_lif1 (on virtual server 22), IP address 10.135.101.9, is being moved to node NetApp-2-W81-04, port a0b-98.
Thu Aug 11 16:54:45 +0200 [NetApp-2-W81-03: vifmgr: vifmgr.lifBeingRemoved:notice]: LIF sv_svm_sw100_esx_dmz_01_nfs_lif1 (on virtual server 22), IP address 10.135.101.9, is being removed from node NetApp-2-W81-03, port a0b-98.
Thu Aug 11 16:54:45 +0200 [NetApp-2-W81-03: vifmgr: vifmgr.lifdown.noports:alert]: LIF sv_svm_sw100_esx_dmz_01_nfs_lif1 (on virtual server 22), IP address 10.135.101.9, currently cannot be hosted on node NetApp-2-W81-03, port a0b-98, or any of its failover targets, and is being marked as down.
Thu Aug 11 16:54:57 +0200 [NetApp-2-W81-03: intr: netif.linkUp:info]: Ethernet e0h: Link up.