[j-nsp] Juniper EX - Notification on STP topology change?

Ben Dale bdale at comlinx.com.au
Tue Jan 5 08:39:11 EST 2010

Hi Niels
> We sometimes have STP toplogy changes and I would like to have some kind of notification for this.
> I've already tried doing this with SNMP traps and syslog, but both options didnt work. It can be logged to a file via ethernet-switching-options trace-options; it shows up in the logs then like this:

SNMP Traps should work, however I just ran a quick test with JUNOS 10.0R1 and according to Wireshark, the EX is sending SNMP Trap OID: instead of: which is the correct topology change notification.

My config is just:

root# show snmp 
community public {
    authorization read-only;
trap-group laptop {
    categories {
    targets {;

Can anyone else confirm this?  It's a bit late here and I may be losing it ; )

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