I have a few Juniper EX3300 switches in my core. I'm seeing something strange where packets destined for device with the MAC address
00:90:0b:30:2d:f2 are being flooded out all interfaces. However, an entry for this MAC address exists in the ethernet-switching table.
Any ideas what could be causing this? According to the ethernet-switching table, the switch should know to forward these frames out
ge-0/0/33 just fine.
VLAN: default, Tag: 1, MAC: 00:90:0b:30:2d:f2, Interface: ge-0/0/33.0 Type: Learn, Age: 0, Learned: 3w6d 22:04:44 Action: Forward Nexthop index: 1326
This began yesterday afternoon, and we have not recently made any changes to the network. I found this when checking out PRTG. I noticed that a bunch of devices which should not be passing any traffic were suddenly being flooded with ~100 Mbps of traffic.