snmpwalk是SNMP的一个工具，它使用SNMP的GETNEXT请求查询指定OID（SNMP协议中的对象标识）入口的所有OID树信息，并显示给用户。通过snmpwalk也可以查看支持SNMP协议（可网管）的设备的一些其他信息，比如cisco交换机或路由器IP地址、内存使用率等，也可用来协助开发SNMP功能。(Snmpwalk is a tool of SNMP. It uses SNMP's GETNEXT request to query all OID tree information of the specified OID (object identifier in SNMP protocol) entry and displays it to users. Through snmpwalk, you can also see some other information supporting SNMP protocol (Network Management) device, such as Cisco switch or router IP address, memory usage rate, etc., can also be used to assist in developing SNMP function.)