通过制定侦测以太网中路由循环、清除死循环连接的网络传输协议，交换机的死循环问题总算是解决了。

This problem was solved (for switches) by creating a protocol that detects loops in an Ethernet network and prunes connections until the loops are gone.

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为路由器间的协议交换增加认证功能，提高网络安全性。

For the agreement between routers exchange authentication function, improve the network security.

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使用SNMP协议网络管理员能够从远程捕获和监控网络系统设备(如网络交换机和路由器等)的工作情况和状态。

With SNMP protocol, network manager can remotely capture and monitor the operation condition and states of network system units (such as network exchanger and router, etc).

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