The value of svcVllSiteIdPortId specifies the port associated with
this site.
The default value for this object indicates an invalid port.
An 'inconsistentValue' error is returned when svcVllSiteIdPortId is
set to non-default and svcVllSiteIdEncapValue is set to its default
value or when svcVllSiteIdPortId is set to its default value and
svcVllSiteIdEncapValue is set to non-default value.