Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

LP CPU packet statistics 10TABLE 7 Packet drop causes for LP CPU counters (Continued)Drop CategoryDropcodeDrop messageDrop description15 Invalid VLAN ID (CV) A packet is received with a VLAN IDthat is not configured in the switch.16 Layer 2 Trace - L2 Switching not enabled(CV)Layer 2 switching is not enabled onthe switch, and the Layer 2 traceroute packet received is dropped.17 Layer 2 Trace - unknown VLAN (CV) The Layer 2 trace route packet isreceived with a VLAN ID that is notconfigured in the switch.18 Port security violation (CV) A packet with an unauthorized MACaddress is received on a port.19 Logical port state is down (CV) The link level protocol state is notenabled.20 Layer 2 port state is blocking (CV) The port on which the packet isreceived is not in the forwardingstate.21 Layer 2 Trace - STP port state is blocking(CV)The port on which the Layer 2 tracepacket is received is not in theforwarding state.22 STP/PVST protected port drop (CV) The port is configured to dropBPDUs.23 STP packet dropped on STP boundary port(CV)24 STP packet dropped on layer 2 free port(CV)25 STP packet dropped while cluster VLANprocessing (CV)A BPDU is received on a configuredSuperSpan boundary port.A Layer 2 protocol packet is receivedon a port with all Layer 2 protocolsdisabled.An STP BPDU is received on a portwhen the cluster-l2protocol-forwardcommand is not enabled.26 Broadcast packet limit reached (CV) The number of received Layer 2broadcast packets that haveexceeded the configured limit in agiven time interval.27 Multicast packet limit reached (CV) The number of received Layer 2multicast packets that haveexceeded the configured limit in agiven time interval.28 Unknown unicast packet limit reached (CV) The number of received Layer 2unknown-unicast packets that haveexceeded the configured limit in agiven time interval.29 IP port is down (CV) The port on which the packet isreceived is down.30 ARP inspection failed A packet is dropped because of anARP inspection failure.31 Port disabled for IPv4 multicast (CV) An IPv4 multicast packet is receivedon a disabled multicast port.Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide 35553-1002426-02