Server Networking

Hi Guys, We have farily stock standard config across our 5Ks as follows however while the port-channel / vPC is UP the server side complains with the following error continiously: dc-224-dh3-rke17-sas1 interface port-channel644 switchport mode trunk ...

Can we connect the FEX to a QSFP port (40G) with 4x10G terminated on the FEX ? It doesnt seem to work. 56128  40G -----QSFP+------> 4x 10G ---> FEX ? Please help me confirm this. 

Hi All, I'm working on a task to add the new modules in Nexus 7K. As far I know initially all physical interfaces belong to the default VDC (VDC 1). we no need to allocate the physical interfaces to default VDC for enabling the interfaces to make con...

Hello all, I am having issues configuring the Nexus 1000v in a different way for lab use..  I am building a POC to see if possible to use several 10G nics in one ESXi host as a core switch for 4 other physical ESXi hosts. This means that I am trying ...

I've read that the default behavior of an interface on a FEX is to be in routed mode. On these interfaces, do they function just like an L3 interface would directly on a 7K line card? Can you assign an IP address to the interface or must you use an S...

VPC modified the native behaviour both on layer 2 and layer 3 aspects. The configurations guide and best practice guide are beyond hundred of pages. There are so many network incidents are posted for incorrectly implemented VPC configurations. If a t...

To prevent Ip spoofing, SAV can ensure the upstream packets are verified which will allow secure host communicate in CMTSI want to know what will CMTS deal with downstream, when SAV is working.Is it consistent with how it deal with upstream for examp...

I'm still confused. before short time a VMware coach told me that a esxi host should'nt be connected to a fabric extender. reason: a fabric extender my not be connected to a switch. (the vmware dvs) but since I try to design this datacenter   I do no...

Hi we are working on a project using Nexus 9Ks and 2Ks and off course the ideal scenario is to have all servers using LACP and uplinked using VPC. But for any other servers that have dual nic cards but somehow d not support LACP say they are configur...

Hi All, Can any one tell above design will work or not ? WIll it create any problem WIll it work as ECMP

Hi all!I have installed n1000v on hyper-v but can not figure out - is there some way to connect my VMs to rest physical network?If anybody could show me the link with step-by-step instructions with what should I do in 1000v and VMM, would be great, s...

Hey everyone. I am new to UCS only since August 2015. So, I am a little timid about a request TAC has put on me.  Currently we are running firmware 2.1(3A) across our UCS server systems. We have a server today that is causing an issue, which is relev...