You have omitted to include the bridge-to-CPU interface under /interface bridge vlan so packets are unable to pass from the switch-like role of the bridge to any services provided by the CPU, http://forum.mikrotik.com/t/routeros-bridge-mysteries-explained/147832/1 is a good description of bridges on Mikrotiks.
For your configuration:
add bridge=bridge comment=mgmt tagged=bridge,ether15,ether16,ether17 untagged=ether7,ether9,ether10,ether11,ether12,ether13,ether14,sfp-sfpplus1,bridge vlan-ids=330
Once that has been done you can add an IP address & default route manually, or with a DHCP client.
The untagged= settings are also unnecessary, if omitted they will be added dynamically based on the port pvid= settings, and it prevents you manually creating a mismatch leading to communication problems.