New VMs cannot get IP

Publication Date:  2013-12-28 Views:  145 Downloads:  0
Issue Description
Customer has a DVS for the servers (Fusion Access) it are in the vlan 1, and it is working (there is a PortGroup). But for VM customer has to use vlan 16, 17 and 18, he created a new PortGroup for vlan 16, but the VM doesn´t get an IP.
Alarm Information
None
Handling Process
Change switch configuration to :

#

interface GigabitEthernet0/0/2

port hybrid tagged vlan 16 to 18

or

#

interface GigabitEthernet0/0/2

port link-type trunk

port trunk allow pass 16 to 18.
Root Cause
Checked the DHCP server, DHCP relay. They are all good. When checked the switch configuration, we found the switches ports configuration that connects each Host is like this

#

interface GigabitEthernet0/0/2

port hybrid untagged vlan 16 to 18

The switch port connects each host should be considered as the port connected to DVS link-up port. The ports between two switch should only allow tagged frame pass-by. So customer’s configuration is not correct.
Suggestions
None

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