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Link flapping on Intel 40Gb NIC connecting to Cisco Nexus 5696
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Link_flapping_on_Intel_40Gb_NIC_connecting_to_Cisco_Nexus_5696
Applies to AFF A700 ONTAP 9.7P4 X91440A - 10/40 Gigabit Ethernet Controller XL710 QSFP+ Cisco Nexus 5696 NX-OS 7.3(3)N1(1) Issue Link flapping is reported by ONTAP Wed Sep 23 03:19:01 +0200 [node-01: ...Applies to AFF A700 ONTAP 9.7P4 X91440A - 10/40 Gigabit Ethernet Controller XL710 QSFP+ Cisco Nexus 5696 NX-OS 7.3(3)N1(1) Issue Link flapping is reported by ONTAP Wed Sep 23 03:19:01 +0200 [node-01: kernel: netif.linkDown:info]: Ethernet e4e: Link down, check cable. Wed Sep 23 03:19:01 +0200 [node-01: kernel: netif.linkUp:info]: Ethernet e4e: Link up. No link flapping is reported on the corresponding switch port Issue persists after replacement of SFPs/cable