Modular Server CM MFS5000SI - Link has been disconnected

[idata]

Hello,

i'm having trouble with a Intel Modular Server an Computing Module MFS5000SI.

In my IMS are 3 CI - and the optional Switch - each CI with an optional Mezzanine Card AXXGBIOMEZ.

Each CI is installed with MS Windows Server 2008R2 Enterprise. In the Windows-Eventlog, every 5 Minutes, i get the error:

Source: e1express - Event-ID 27

Intel(R) PRO/1000 PB Dual Port Server Connection Link has been disconnected.

and a second later:

Intel(R) PRO/1000 PB Dual Port Server Connection Link has been established: 1000Mbps.

I updated the drivers (16.6), set RSTP to off - but still the same.

The onboard "Pro/1000 EB Backplane" Nics are working fine, only the Nics on the Mezzanine Card reports the error.

Any Ideas ?

[Edward_Z_Intel]

Are you seeing this error on all 3 compute modules? How are the NICs configured on each compute module? (each connecting to a different network, teaming, VLAN, etc.)

[idata]

Hello,

thanks for your reply.

yes, this error appears on all computing modules.

to find out what is causing the error, we removed the configuration on the Switches - so no team, no vlan, all in the same network.

The Nics are "straight through the switch"

[idata]

anyone an idea?

i'm currently using driver version 9.14.180.0, but i'd also tested older drivers.

Or could this be an issue with the second switch module inside the IMS ?

[Edward_Z_Intel]

Did you swap the switch modules to test?

[idata]

can i swap the modules without losing the switch configuration?

[Edward_Z_Intel]

Good question... If I'm not wrong the switch configuration is on the switch itself... But I thought you said you have already removed all configurations on the switches?

[idata]

Yes, for testing proposes i'd set the switch to default, but this did not solve my problem, so i reconfigured the switch.

[Daniel_O_Intel]

Since you're using two switches, try disabling the switch interconnect - From the CMM GUI, choose System | Switches | Advanced Configuration

Mouse over any port and choose Port ConfigurationSelect Port | 10G.XC | Admin Status | Downand Port | 10G.SC | Admin Status | Down