6.5.1

Table Of Contents
Troubleshooting Networking 8
The troubleshooting topics about networking in vSphere provide solutions to potential problems that you
might encounter with the connectivity of ESXi hosts, vCenter Server and virtual machines.
This chapter includes the following topics:
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Troubleshooting MAC Address Allocation
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The Conversion to the Enhanced LACP Support Fails
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Unable to Remove a Host from a vSphere Distributed Switch
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Hosts on a vSphere Distributed Switch 5.1 and Later Lose Connectivity to vCenter Server
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Hosts on vSphere Distributed Switch 5.0 and Earlier Lose Connectivity to vCenter Server
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Alarm for Loss of Network Redundancy on a Host
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Virtual Machines Lose Connectivity After Changing the Uplink Failover Order of a Distributed Port
Group
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Unable to Add a Physical Adapter to a vSphere Distributed Switch That Has Network I/O Control
Enabled
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Troubleshooting SR-IOV Enabled Workloads
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A Virtual Machine that Runs a VPN Client Causes Denial of Service for Virtual Machines on the Host
or Across a vSphere HA Cluster
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Low Throughput for UDP Workloads on Windows Virtual Machines
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Virtual Machines on the Same Distributed Port Group and on Different Hosts Cannot Communicate
with Each Other
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Attempt to Power On a Migrated vApp Fails Because the Associated Protocol Profile Is Missing
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Networking Configuration Operation Is Rolled Back and a Host Is Disconnected from vCenter Server
Troubleshooting MAC Address Allocation
In vSphere, certain restrictions on the range of MAC addresses that can be assigned to virtual machines
might cause lost of connectivity or inability to power on workloads.
VMware, Inc.
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