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I can add further info: 
if from other hosts I try to vmkping affected host, I see this in affected host (with pktcap-uw command): 
 

<pre><code class="code-10 nolinks" id="code-20-43056746-1">08:12:36.962092[1] Captured at PortInput point, TSO not enabled, Checksum not offloaded and not verified, length 60.
 Segment[0] ---- 42 bytes:
 0x0000: 0050 5667 35d6 0050 5666 df3a 0806 0001 
 0x0010: 0800 0604 0002 0050 5666 df3a c0a8 fb65 
 0x0020: 0050 5667 35d6 c0a8 fb67 
 Segment[1] ---- 18 bytes:
 0x0020: 0000 0000 0000 
 0x0030: 0000 0000 0000 0000 0000 0000 
08:12:37.963269[2] Captured at PortInput point, TSO not enabled, Checksum not offloaded and not verified, length 60.
 Segment[0] ---- 42 bytes:
 0x0000: 0050 5667 35d6 0050 5666 df3a 0806 0001 
 0x0010: 0800 0604 0002 0050 5666 df3a c0a8 fb65 
 0x0020: 0050 5667 35d6 c0a8 fb67 
 Segment[1] ---- 18 bytes:
 0x0020: 0000 0000 0000 
 0x0030: 0000 0000 0000 0000 0000 0000 
08:12:38.965310[3] Captured at PortInput point, TSO not enabled, Checksum not offloaded and not verified, length 60.
 Segment[0] ---- 42 bytes:
 0x0000: 0050 5667 35d6 0050 5666 df3a 0806 0001 
 0x0010: 0800 0604 0002 0050 5666 df3a c0a8 fb65 
 0x0020: 0050 5667 35d6 c0a8 fb67 
 Segment[1] ---- 18 bytes:
 0x0020: 0000 0000 0000 
</code></pre>
 
viceversa, if I try to vmkping from affected host to other hosts, with pktcap-uw I see nothing. 
So it seems affected host can RECEIVE, but not send.
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vmnic.JPG

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<div class="content wysiwyg-content">
Hi, I noticed a couple of errors about vMotion events on my VMware ESXi Cluster (mostly 6.7, two hosts have 6.0). 
Apparently, two VMs weren't able to migrate due to &quot;the vMotion failed because the destination hsot did not receive any data from the source host on the vMotion network&quot;. 
I checked all ports of my host in the vMotion VLAN, and they are up&amp;running on Cisco switches. 
It seems that just ONE host isn't able to vmkping other hosts on vMotion VLAN. 
I confirm that affected host HAS his IP address, and it is able to vmkping itself. 
From other hosts, I have no arp for this host (checked with esxcli network ip &nbsp;neighbor list | grep IP_OF_ISOLATED_HOST). 
 
How can I troubleshoot this? 
Thank you!
</div>
</div>

Hi, I noticed a couple of errors about vMotion events on my VMware ESXi Cluster (mostly 6.7, two hosts have 6.0).
Apparently, two VMs weren't able to migrate due to "the vMotion failed because the destination hsot did not receive any data from the source host on the vMotion network".
I checked all ports of my host in the vMotion VLAN, and they are up&running on Cisco switches.
It seems that just ONE host isn't able to vmkping other hosts on vMotion VLAN.
I confirm that affected host HAS his IP address, and it is able to vmkping itself.
From other hosts, I have no arp for this host (checked with esxcli network ip  neighbor list | grep IP_OF_ISOLATED_HOST).

How can I troubleshoot this?
Thank you!

VMware host isolated in vMotion VLAN

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.