1、三次握手过程：
1）omc->enodeb：syn
2）enodeb->omc：syn-ack
3）omc->enodeb：ack
2、应用层的建链：
1）omc->enodeb：EV_CONNECTION_SNMP_ASK建链请求
2）enodeb->omc：EV_CONNECTION_SNMP_ASK_SUCCESS建链成功
/enodeb->omc：EV_CONNECTION_SNMP_ASK_FAILURE建链失败
3、心跳消息：
1）omc->enodeb：EV_HEART_BREAK_ASK
2）enodeb->omc：EV_HEART_BREAK_RESPONSE