+that learns Ethernet addresses on a per-VLAN basis. In addition,
+learning should be disabled on the VLAN containing mirrored traffic.
+If this is not done then the intermediate switch will learn the MAC
+address of each end host from the mirrored traffic. If packets being
+sent to that end host are also mirrored, then they will be dropped
+since the switch will attempt to send them out the input port.
+Disabling learning for the VLAN will cause the switch to correctly
+send the packet out all ports configured for that VLAN.