This issue occurs if there are too many ports configured on an existing vSwitch. For example, if the host has 4088 ports on a vNetwork Standard Switch, or possibly another vNetwork Distributed Switch or Nexus 1000V virtual switch attached to the host with a large quantity of configured ports.
To resolve this issue, reduce the number of ports on the host's existing vNetwork Standard Switches, Distributed Switches or Nexus 1000V switches.
To reduce the number of ports on a vNetwork Standard Switch:
Note: Ensure to restart the host for the changes to take effect.
With a vSphere Distributed Switch, you can either change the overall maximum number of ports per host on the vDS, or change the maximum number of ports on each port group in the switch.
To reduce the overall number of ports per host on a vSphere Distributed Switch (must be repeated for each host):
To reduce the number of ports on the individual portgroups of a vSphere Distributed Switch:
Note: In vSphere Distributed Switches, the number of ports needs to be considered for all hosts connecting as the port count is distributed across all hosts connected to this switch. A reboot is not required when changing the number of ports on a Distributed Switch, unless you are changing the maximum number of ports for a host after the host is added to the distributed switch. In the that case, you must restart the host before the new maximum takes effect.
To reduce the number of ports on a Nexus 1000V Virtual Switch:
n1kv# show run
n1kv# configure terminal
n1kv(config)# vmware port-group portgroupname
n1kv(config-port-prof)# vmware max-ports number
n1kv(config-port-prof)# exit
n1kv# copy run start
Note: Like vNetwork Distributed Switches, the number of ports on the Nexus 1000V must be considered for all hosts connecting to it. The port count is distributed across all hosts connected to the switch. A reboot is not required when changing the number of ports on the Nexus 1000V.
For more information, please refer to the Nexus 1000V Port Profile Configuration Guide for the version you are using.