topic Re: SNMP traps event based only? in Network Security

SNMP traps event based only?

swain9063058 — Thu, 10 Feb 2022 11:20:59 GMT

Hi All,

Not sure if this is the correct part of the forum to ask or not, but my question is.... do SNMP traps work purely on events/status changes, or can a SNMP trap be sent periodically to report the current status of a particular interface?

e.g. can the switch send a trap for FastEthernet port 4, whether it be Up or Down? SNMP, Other Network Security Topics

For context, i would like to be able to check whether an interface is up or down, however the monitoring system would be connected to a SPAN port so is unable to query the switch.

Thanks

Re: SNMP traps event based only?

Mark Elsen — Thu, 10 Feb 2022 12:33:40 GMT

- Traps are event based only , for monitoring interface status you (or network manager software) just use the correct MIB and particular OID and or query that at regular intervals.

Re: SNMP traps event based only?

balaji.bandi — Thu, 10 Feb 2022 18:03:23 GMT

if the port go up and down then trap will be sent with the below config ;

snmp trap link-status

e.g. can the switch send a trap for FastEthernet port 4, whether it be Up or Down? SNMP, Other Network Security Topics

you need to use snmp to query this information. or setup a EEM script to send this information to log server regularly.