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Webcast-Catalyst9k
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Intel Server NIC I350 LACP IEEE802.3ad teaming issue

Hello Community

I face an issue which i cannot resolve.

I have:

Intel Server System R1208GL4DS with buildin I350 4 ports inet adapter

OS: Windows Server 2008 R2

NIC drivers ver 18.4 (PRO set with ANS)

Data Center provides ieee802.3ad dynamic aggregation teaming connection, It uses 2 ports on my server (0 and 3)

DC uses Cisco Nexus switches

SpanningTreeProtocol is ON and cannot be switched off by DC.

Problem:

One of the adapters suddenly goes on standby state and doesnot pass traffic.

As the result the whole connectivity to server and to services I use stuck at that moment.

There is only one way to resolve is to restart server or restart whole team by changing the team properties.

Nic properties:

flow control off

ofloads off

rss off

Team:

I have tried to change everything playing with any property within nic or team. No luck.

Some information from DC support of the swith config:

# sh interface po1113 switchport

Name: port-channel11

13
  Switchport: Enabled
  Switchport Monitor: Not enabled
  Operational Mode: trunk
  Access Mode VLAN: 1 (default)
  Trunking Native Mode VLAN: 1 (default)
  Trunking VLANs Allowed: 300,390,398-399
  Voice VLAN: none
  Extended Trust State : not trusted [COS = 0]
  Administrative private-vlan primary host-association: none
  Administrative private-vlan secondary host-association: none
  Administrative private-vlan primary mapping: none
  Administrative private-vlan secondary mapping: none
  Administrative private-vlan trunk native VLAN: 1
  Administrative private-vlan trunk encapsulation: dot1q
  Administrative private-vlan trunk normal VLANs: none
  Administrative private-vlan trunk private VLANs: none
  Operational private-vlan: none
  Unknown unicast blocked: disabled
  Unknown multicast blocked: disabled

Please advise as I'm almost stuck.

Thank you.

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