Forum Discussion

DLP's avatar
DLP
Icon for Nimbostratus rankNimbostratus
Apr 09, 2020

Send email on reaching bandwidth threshold

Hello Devcentral!   I've been looking for a way to send out an email from a F5 BIG-IP (12.1.2) but I cannot find anything that tells me if a) this can be done and b) how to do that. I do have ASM...
alert
application delivery
bandwith
BIG-IP
email
LTM
DLP's avatar
DLP
Icon for Nimbostratus rankNimbostratus
Apr 15, 2020

Ah thanks, I'll look into that then if there is no "built-in" way. I prefer not using crons because they don't survive upgrades. Do you happen to have an example?

  • ldesfosses's avatar
    ldesfosses
    Icon for Cirrus rankCirrus
    Apr 15, 2020

    About the cron not surviving the upgrades, what I like to do is "export the cron". I've a linux box with a cron, and this cron execute command remotely via SSH.

    For example, install this following command (replace "SEND MAIL" by the method you use to send mail obviously 😅) on a cron of a computer with the SSH Key added authorized key and the user must have the advanced shell (let me know if you have question about this) : 

    ssh youruser@yourF5IP grep "Bandwidth exceeded by 75" /var/log/ltm > /dev/null
 if [ $? == 0 ] ; then  echo "SEND MAIL"; fi
 

    That said, I don't like this solution, it would be far better for you to lose time installing a Nagios or anything that can monitor and keep link usage by SNMP.