Brief introduction
SNMP协议的运用场景非常丰富，利用SNMP协议，网络管理员可以对网路上的节点进行信息查询、网络配置、
故障定位、容量规划，网络监控和管理,分为v1、v2c、v3 三个版本，其中V3最为安全，此处以v1、v2c为例
SNMP Configuration
The system view
system-view
Enable snmp agreement
snmp-agent
Corresponding version allows snmp protocol
snmp-agent sys-info version v1
snmp-agent sys-info version v2c
Read community name is public switch configuration
snmp-agent community read public
Configuration Administrator ID
snmp-agent sys-info contact administrator
Configure the device location
snmp-agent sys-info location office
Allowed to send trap packets
snmp-agent trap enable
Configuring trap host address (gateway address)
snmp-agent target-host trap address udp-domain 172.10.1.6 params securityname public v1
Storage
save