在业务和支撑系统层面，结合端到端业务流程的穿越，梳理出AAA、CRM、服务开通及DNS等系统的IPv6改造内容。
In service and support system level , combined with end-to-end service process walk-through , presenting the transformation content of IPv6 systems , which are AAA , CRM , Service Process System and DNS system and so on .
流程穿越