交换机授权配置参考，SNMP启用Trap，同时ACL放行Cacti服务器IP
dis current-configuration | b snmp
snmp-agent
snmp-agent local-engineid xx
snmp-agent community read public acl 2000
snmp-agent sys-info version all
snmp-agent target-host trap address udp-domain 192.168.1.1 params securityname public
snmp-agent trap enable arp
snmp-agent trap enable radius
snmp-agent trap enable stp
snmp-agent trap enable syslog

acl basic 2000
description ACL_for_SNMPSSH
……
rule 220 permit source 192.168.1.1 0