Controller(10.11.21.33) /etc/nova/nova.conf:

vnc_enabled = True
vncserver_host = 0.0.0.0
vncserver_listen = 10.11.21.33
vncproxy_url = http://10.11.21.33:6080
vncserver_proxyclient_address = 10.11.21.33
novncproxy_base_url=http://10.11.21.33:6080/vnc_auto.html

compute(10.11.21.37) /etc/nova/nova.conf:

#
vnc_enabled = True
vncserver_listen = 10.11.21.37
vncserver_proxyclient_address = 10.11.21.37
vncproxy_url = http://10.11.21.33:6080
novncproxy_base_url=http://10.11.21.33:6080/vnc_auto.html
#

This compute is configured to access Xenserver 6.2, and the /etc/nova/nova-compute.conf:

[DEFAULT]
libvirt_type=xen
compute_driver=xenapi.XenAPIDriver
xenapi_connection_url = http://10.11.21.35 
xenapi_connection_username = root
xenapi_connection_password = xxxxxxxx
xenapi_vif_driver = nova.virt.xenapi.vif.XenAPIOpenVswitchDriver

xenapi_ovs_integration_bridge = xenapi
xenapi_torrent_images = none
sr_matching_filter = default-sr:true

When I tried to access the console through Dashboard, I am facing "Failed to connect to server code: 1006. Any solution ?

PS: With above configuration, I can access the console of VM of Vmware vCenter through Dashboard of Openstack. Thanks.