MTS的组件包括：
processes on the system、
communication software、
the shared global section (SGA).
SQL*Net SGA SGA
---------- -------------- ----------- ----------
| Client |<-------->| Dispatcher |<----->| Circuit |<----->| Shared |
---------- -------------- ----------- | Server |
| ----------
‘JSMITH‘ ‘ORA_<sid>_D000‘ | ‘ORA_<sid>_S000‘
+---------+
| Session |
+---------+
复杂版本：
SQL*Net(监听器) SGA SGA
---------- -------------- ----------- ----------
| Client |<-------->| Dispatcher |<----->| Circuit |<----->| Shared |
---------- -------------- ----------- | Server |
| ----------
‘JSMITH‘ ‘ORA_<sid>_D000‘ | ‘ORA_<sid>_S000‘
+---------+
| Session |
+---------+
Some views containing MTS information include:
V$CIRCUIT
控制为一个输入和输出网络会话所预测的虚拟电路的总数量。
V$SHARED_SERVER
V$DISPATCHER
V$MTS
V$QUEUE
V$SESSION
Dispatcher的数量从mts_dispatchers(init.ora)到MTS_MAX_DISPATCHERS
原文：https://www.cnblogs.com/fanweisheng/p/11113462.html