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Unable to bring up onboard LAN interfaces

Publication Date:  2017-12-07 Views:  32 Downloads:  0
Issue Description

Unable to bring up onboard LAN interfaces

On the server are installed ESXi 6.5 U1 OS on both of them and in console they see 4 NIC ports but they are all disconnected

Alarm Information



on the servers are installed ESXi 6.5 U1 OS on both of them and in console they see 4 NIC ports but they are all disconnected.

When connect the cable to GE data port it doesn’t bring up the link at all .

Server is connected to Cisco gigabit core switch. Other devices connected to the same port on switch have connection.

Afetr tried several OS versions the result is the same, even when use custom ISO with ESXi installation and installed drivers downloaded from Huawei support site. On the server are installed latest drivers.
from support site.

The  Bios,Firmware are the latest versions.


At the same time iBMC port is working normally and without any issue.

Handling Process

Need to check the NIC driver to be the latest and install the latest from the http://support.huawei.com/ website.

Check also the compatibility list of NIC for the server.

Change the cable and also the switch port.

 

 

 

 

 

 

 

Root Cause

Sometimes, in ESXI it is possible to change the link state manually from the command line to bring aspecific vmnic up or down, so please try to use below command:

esxcli network nic up –n vmnic0

esxcli network nic up –n vmnic1

esxcli network nic up –n vmnic2

esxcli network nic up –n vmnic3

 

Also run below command after  that to check the real status of them:

esxcfg –nics –l

We need to eliminate the cause of speed and duplex of vmnic , it could be changed , so try to reset it, command for that is:

esxcfg-nics –a vmnic0

esxcfg-nics –a vmnic1

esxcfg-nics –a vmnic2

esxcfg-nics –a vmnic3

Solution

Check also the NIC link status in VI client and also pay attention to the setting from BIOS, it must be enabled.

In ESXI it is possible to change the link state manually from the command line to bring aspecific vmnic up or down, so please try to use below command:

 

esxcli network nic up –n vmnic0

esxcli network nic up –n vmnic1

esxcli network nic up –n vmnic2

esxcli network nic up –n vmnic3

 

Also run below command after that to check the real status of them:

esxcfg –nics –l

We need to eliminate the cause of speed and duplex of vmnic , it could be changed , so try to reset it, command for that is:

esxcfg-nics –a vmnic0

esxcfg-nics –a vmnic1

esxcfg-nics –a vmnic2

esxcfg-nics –a vmnic3

Or

esxcfg-nics –s 100 –d full
vmnic0

esxcfg-nics –s 100 –d full
vmnic1

esxcfg-nics –s 100 –d full
vmnic2

esxcfg-nics –s 100 –d full
vmnic3

Final step is to check the configuration of the LAN switch

 



Suggestions

Check the NIC driver to be the latest and install the latest from the http://support.huawei.com/ website

Check also the NIC link status in VI client and also pay attention to the setting from BIOS, it must be enabled.

Eliminate the cause of speed and duplex of vmnic , it could be changed , so try to reset it, command for that is:

esxcfg-nics –a vmnic0

esxcfg-nics –a vmnic1

esxcfg-nics –a vmnic2

esxcfg-nics –a vmnic3

Or

esxcfg-nics –s 100 –d full
vmnic0

esxcfg-nics –s 100 –d full
vmnic1

esxcfg-nics –s 100 –d full
vmnic2

esxcfg-nics –s 100 –d full
vmnic3

Check the configuration of the LAN switch.
 

END