Server Networking

Hello Everyone, I'm trying to install the ESXi 6.0 ( with customized iso Cisco: Vmware-ESXi-6.0.0-2494585-Custom-Cisco-6.0.0.2.iso) on Cisco UCS C240 M4 server, but it is finished with purple diagnostic screen. The screen shots are in attachment. Pl...

Hi , I have no idea about this technology and i got a requirement to get the details of the server connected .Any suggestion how to get.

what's the main difference between VPC and normal portchannel in catlyst switch?

Hello   Right now we are getting issues with unattended installation of a Cisco C240, the Cisco server don’t send the option 93 to the DHCP server(Where indicate to the Main server the type of hardware – Client System) and for this reason never recei...

Hi! Now facing an issue when a vPC-attached ESXi (not e-vPC, not vPC+) with MS NLB cluster members is not reachable by the clients connected from other vPC-attached ESXi. Interestingly, a vPC-attached client can reache the MS NLB cluster, located on...

Hi Folks, I am trying to add host in N1KV/Vmware DVS and showing following error, Can anyone help me with this issue: System.NullReferenceException: Object reference not set to an instance of an object. at VpxClient.DVS.DVSWizard.Data.HostItemInfo....

Hello, This is my first time posting here, but I do use the Support Community often when I'm looking for answers.  I have searched for the possible answer to my problem for well over two weeks and have tried various solutions discussed in other post...

We have a laptop connected to a 2248 FEX. I know it is not standard but at least there should be some activity on the port, however it is still down. The port is in spanning-tree port type edge auto/auto and obviously the FEX is online. The laptop su...

Hi, I have some non-Cisco physical servers. Wonder if they support the FEX-adapter technology, I'd like to understand if it's possible to have some redundancy or even channeling. I mean there is just a link between the FEX and the server, and it can...

Hi, I am receiving these errors very often on N7K switches. What are these related to? Is there any guide to check the details of these errors? %ARP-4-SYSLOG_SL_MSG_WARNING: IP-5-INVALID_NOTIFY: message repeated 8 times in last 10 sec%ARP-5-INVALID_N...

Hello All, I'm working on a design issue and would like know the Cisco best practice to configure the spanning tree port type for the L2 connectivity between VDCs? In a scenario VDC running on Switch A to VDC running on Switch B and both switch A an...