Hello,
Odd issue going on. We're working through upgrading our small cluster to newer hosts running ESXi 6.0. The hosts are Dell R630 1U boxes. There's a variety of wired NIC cards. I also have them loaded with Intel X520 DP 10Gb DA/SFP+ cards. Currently I don't have the 10Gb switching so it's my understanding that they can be used at 1000Mb speed with standard copper SFP modules. We build out the three servers. Our management and virtual machine network traffic use the same two physical ports(one tied to the X520 and the other one of the onboard ports) tied to a Cisco 4507 via etherchannel.
There was no issue getting the hosts online. We were able to bring them in and out of maintenance mode, reboot, patch, etc. No issues. However, after playing around with a template and spinning up a VM of Windows Server 2016, upon shut down, it will interrupt management traffic on the host. If we use one half of the ether-channel and just use the onboard NIC, there's no issue. If we use the X520 solely and shut down the guest, it will stop management traffic on that host. So we've isolated it to the X520 card. I read on intel's site that the SFP modules have to be Intel for the most case. I'm using some extra Cisco SFP modules I had laying around. The other odd thing is that the Vcenter will see the host as online(and will even ping with replies) while any workstation I have tested won't ping.
Has anyone seen something like this? I guess my only real option is to buy new SFP cards, but I hoping someone would have some further insight or confirmation that the module could cause problems like this.
SFP+ Modules, SFP Modules, and Cables Compatible with Intel® Ethernet...
