Configuring SNMP & RMON Notification Configurations
Configuration Guide  
  761
Rate Limit Monitors whether the bandwidth has reached the limit you have set. The trap 
can be triggered when the Rate Limit feature is enabled and packets are sent 
to the port with a rate higher than what you have set.
LLDP Indicates LLDP topology changes. The trap can be triggered when a new 
remote device attached to a local port, or a remote device disconnected or 
moved from one port to another.
Loopback Detection Triggered when the switch detects a loopback with loopback detection 
feature, or when a loopback is cleared.
Spanning Tree Indicates spanning tree changes. The trap can be triggered in the following 
situations: a port changes from non-forwarding state to forwarding state or 
the other way round; a port receives a packet with TC flag or a TCN packet. 
PoE Only for products that support PoE feature. Allow all PoE-related traps, 
including:
Over-max-pwr-budget: Triggered when the total power required by the 
connected PDs exceeds the maximum power the PoE switch can supply.
Port-pwr-change: Triggered when a port starts to supply power or stops 
supplying power.
Port-pwr-deny: Triggered when the switch powers off PDs on low-priority 
PoE ports. When the total power required by the connected PDs exceeds the 
system power limit, the switch will power off PDs on low-priority PoE ports to 
ensure stable running of the other PDs. 
Port-pwr-over-30w: Triggered when the power required by the connected 
PD exceeds 30 watts.
Port-pwr-overload: Triggered when the power required by the connected PD 
exceeds the maximum power the port can supply.
Port-short-circuit: Triggered when a short circuit is detected on a port.
Thermal-shutdown: Triggered when the PSE chip overheats. The switch will 
stop supplying power in this case.
IP-MAC Binding Triggered in the following two situations: the ARP Inspection feature is 
enabled and the switch receives an illegal ARP packet; or the IPv4 Source 
Guard feature is enabled and the switch receives an illegal IP packet.
IP Duplicate Triggered when the switch detects an IP conflict event.
DHCP Filter Triggered when the DHCPv4 Filter feature is enabled and the switch receives 
DHCP packets from an illegal DHCP server.
ACL Counter Monitors matched ACL information, including the matched ACL ID, rule ID 
and the number of the matched packets. With both this trap and the Logging 
feature in ACL rule settings enabled, the switch will check the matched ACL 
information every five minutes and send SNMP traps if there is any updated 
information.
2)  Click Apply.