3com 5500-ei pwr Installation Instruction

 

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traps refer to those sent by managed devices to the NMS without request. They are used to report some 

urgent and important events (for example, the rebooting of managed devices). 

Note that basic SNMP configuration is performed before you configure basic trap function. 

Follow these steps to configure basic trap function: 

Enter system view 

— 

Enable the switch to send 
traps to NMS 

snmp-agent trap enable [ configuration | 
flash | ospf [ process-id ] [ ospf-trap-list ] | 
standard [ authentication | coldstart | 
linkdown | linkup | warmstart ]* | system | 
vrrp [ authfailure | newmaster ] ] 

Enter port view or 
interface view 

interface interface-type interface-number 

Enable the port 
or interface to 
send traps 

Enable 
the port to 
send traps 

Quit to system 
view 

Optional 

By default, a port 
is enabled to send 
all types of traps. 

Set the destination for traps 

snmp-agent target-host trap address 
udp-domain { ip-address } [ udp-port 
port-number ] params securityname 
security-string [ v1 | v2c | v3 [ authentication 
| privacy ] ]  

Required 

Set the source address for 
traps 

snmp-agent trap source interface-type 
interface-number  

Optional 

Set the size of the queue used 
to hold the traps to be sent to 
the destination host 

snmp-agent trap queue-size size 

Optional 

The default is 100.

Set the aging time for traps 

snmp-agent trap life seconds  

Optional 

120 seconds by 
default. 

 

The extended trap function refers to adding “interface description” and “interface type” into the 

linkUp/linkDown trap. When receiving this extended trap, NMS can immediately determine which 

interface on the device fails according to the interface description and type.