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The NIC port e6b on the CX6-DX NIC is flapping

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fas-systems
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hw
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Applies to

  • A90
  • NVIDIA CX6-DX NIC

Issue

  • The NIC port e6b on the Dual 40G/100G Ethernet Controller CX6-DX NIC card is flapping
sysconfig -a
NetApp Release 9.15.1P10: Thu Apr 17 10:04:43 EDT 2025
System ID: xxxxxxxxx (node-01); partner ID: xxxxxxxxx (node-02)
System Serial Number: xxxxxxxxxxxx (node-01)
System Rev: B1
System Storage Configuration: Multi-Path HA
System ACP Connectivity: Inband Active
SAS2/SAS3 Mixed Stack Support: all
All-Flash Optimized: true
Capacity Optimized: false
All SAN Array: false
Backplane Part Number: 111-05636+A4
Backplane Serial Number: xxxxxxxxxxxx
slot 0: System Board 2.0 GHz (System Board XXXVI B1)
Model Name:         AFF-A90
 
slot 6: Dual 40G/100G Ethernet Controller CX6-DX
e6a MAC Address:    xx:xx:xx:xx:xx:9d (auto-100g_sr4-fd-up)
QSFP Vendor: FINISAR CORP
QSFP Part Number:    FTLC9558REPM-1Y
QSFP Serial Number:  xxxxxxx
e6b MAC Address:    xx:xx:xx:xx:xx:9e (auto-100g_sr4-fd-up)
QSFP Vendor:
QSFP Part Number:
QSFP Serial Number:
Device Type:CX6-DX PSID(NAP0000000024)
Firmware Version:   22.41.1000
Part Number:111-05088
Hardware Revision:  C0
Serial Number:      xxxxxxxxxxxx
   
EMS
7/9/2025 12:29:53   node-01 NOTICE      net.ifgrp.lacp.link.active: ifgrp a0a, port e6b has transitioned to the active state.
7/9/2025 12:29:48   node-01 NOTICE      vifmgr.portup: A link up event was received on node node-01, port e6b.
7/9/2025 12:29:48   node-01 INFORMATIONAL netif.linkUp: Ethernet e6b: Link up.
7/9/2025 12:29:36   node-01 NOTICE      vifmgr.portdown: A link down event was received on node node-01, port e6b.
7/9/2025 12:29:36   node-01 ERROR       net.ifgrp.lacp.link.inactive: ifgrp a0a, port e6b has transitioned to an inactive state. The interface group is in a degraded state.
7/9/2025 12:29:36   node-01 INFORMATIONAL netif.linkDown: Ethernet e6b: Link down, check cable.
7/8/2025 20:22:30   node-01 NOTICE      net.ifgrp.lacp.link.active: ifgrp a0a, port e6b has transitioned to the active state.
7/8/2025 20:22:26   node-01 NOTICE      vifmgr.portup: A link up event was received on node node-01, port e6b.
7/8/2025 20:22:26   node-01 INFORMATIONAL netif.linkUp: Ethernet e6b: Link up.
7/8/2025 20:22:11   node-01 NOTICE      vifmgr.portdown: A link down event was received on node node-01, port e6b.
7/8/2025 20:22:11   node-01 ERROR       net.ifgrp.lacp.link.inactive: ifgrp a0a, port e6b has transitioned to an inactive state. The interface group is in a degraded state.
7/8/2025 20:22:11   node-01 INFORMATIONAL netif.linkDown: Ethernet e6b: Link down, check cable.
  • Replacing the SFPs on both sides does not help
  • Replacing the NIC cable does not help
  • The switch model is Arista

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