09-17-2014 11:01 PM - edited 03-01-2019 11:50 AM
Hi Guyz,
we have C420M3 server with VIC 1225 connected on PCIe slot, with Fabric Interconnet.
After installing OS & drivers , vNICs created on VIC 1225 by service profile appear, but 4 gig ports on Server LOM dont appear.
Any Idea.?
Thank
Solved! Go to Solution.
09-22-2014 09:35 AM
If you integrate your rack server to UCSM, you will be able to use the LOM ports ONLY for Mgmt traffic, that is when you integrate the server in "Dual Wire Mode".
There is no need (unless you have one for an special reason I am not considering in this very moment) to use the LOM ports once you have integrated the server, precisely cause the VIC 1225 is a not a regular NIC card, nor a regular HBA, it is actually a CNA (Converged Network Adapter) which basically lets you do in one card, what you would do with two (meaning "what you would do with a separate NIC and HBA")
When you have a VIC card, you actually have the option to create up to 256 virtual interfaces (that's the capability of the hardware, always limited by the OS used, please keep that in mind), that is the reason why, after the server is integrated, you totally depend on the interfaces set in the Service Profile instead of the physical interfaces.
Find more info here:
http://www.cisco.com/c/en/us/products/interfaces-modules/unified-computing-system-adapters/models-comparison.html
Do you have a particular reason for using the LOM ports instead of creating 2 additional virtual interfaces in the Server's Service Profile?
-Kenny
09-18-2014 06:32 AM
Hello,
What method did you use to integrate the server to UCSM? Direct Attach (no FEXs are used), Single Mode (only the VIC card is used to integrate to UCSM) or Dual Mode (LOM ports connect to FEXs and VIC card ports connect to Fabric Interconnect) ?
-Kenny
09-18-2014 09:07 AM
Hi ,
Yes we have direct attach, VIC 1255 ports from server directly connected to Fabric Interconnect in cluster. we dont have FEX ( Nexus 2K)
& LOM ports connected to External Ethernet Switch.
09-18-2014 10:21 AM
I think this is not a supported configuration. MLOM ports cannot be connected outside UCS fabric; this would require an additional I/O adaptor.
09-21-2014 02:39 AM
Thanks for you replies Kenney & Wdey,
So how do i connect in my case , to get both adapters in OS.
where i have VIC 1225 , C420 & i want to use LOM ports in OS along with vNics created by VIC1225.
Thanks
09-22-2014 09:35 AM
If you integrate your rack server to UCSM, you will be able to use the LOM ports ONLY for Mgmt traffic, that is when you integrate the server in "Dual Wire Mode".
There is no need (unless you have one for an special reason I am not considering in this very moment) to use the LOM ports once you have integrated the server, precisely cause the VIC 1225 is a not a regular NIC card, nor a regular HBA, it is actually a CNA (Converged Network Adapter) which basically lets you do in one card, what you would do with two (meaning "what you would do with a separate NIC and HBA")
When you have a VIC card, you actually have the option to create up to 256 virtual interfaces (that's the capability of the hardware, always limited by the OS used, please keep that in mind), that is the reason why, after the server is integrated, you totally depend on the interfaces set in the Service Profile instead of the physical interfaces.
Find more info here:
http://www.cisco.com/c/en/us/products/interfaces-modules/unified-computing-system-adapters/models-comparison.html
Do you have a particular reason for using the LOM ports instead of creating 2 additional virtual interfaces in the Server's Service Profile?
-Kenny
09-22-2014 12:04 PM
Hi Kenny.
well i was trying to put hyper-v mgmt & vmotion traffic on physical nics via different network switch.
& Data traffic on Vic1225 vNICs via FI.
Thanks for your in-depth explanation.
09-22-2014 12:09 PM
Always my pleasure... If you are trying to put your NICs in different switches upstream, then try a "Static pinning" of your vNIC to an specific uplink port in the Fabric Interconnect and plug that cable in the desired switch, that way you still don't need the LOM ports :)
Have a cool day!
-Kenny
09-22-2014 12:22 PM
see also the discussions in
https://supportforums.cisco.com/discussion/12044856/nic-teaming-w2012
https://supportforums.cisco.com/discussion/11956156/w2012-nic-teaming-lbfo
Walter.
09-22-2014 11:38 PM
Hey thanks Wdey for sharing that. that helps.
09-18-2014 07:27 PM
That is the reason why you cannot see those ports, whit direct attach the only vNICs you will see will be those created in the service profile through the VIC card.
-Kenny
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