Did you just performed an upgrade to 15.1X49-D60 from some other version? and did you do an additional reboot after upgrade to fix the l2-switching mode ?
If so, can you enable pcap on irb interface and check?
Did you just performed an upgrade to 15.1X49-D60 from some other version? and did you do an additional reboot after upgrade to fix the l2-switching mode ?
If so, can you enable pcap on irb interface and check?