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

10LP CPU packet statisticsTABLE 7 Packet drop causes for LP CPU counters (Continued)Drop CategoryDropcodeDrop messageDrop description32 Port disabled for IPv6 multicast (CV) An IPv6 multicast packet is receivedon a disabled multicast port.33 IP receive ACL deny (CV) Packets are dropped in software bythe IP receive ACL configuration.Packet Error (PE)Drops34 DOS attack drop exceeded configurationlimit (CV)Packets are dropped in software bythe DOS attack configuration.35 MPLS unknown VC label (CV) An MPLS packet is received with anunknown VC label.36 VPLS ISID Configuration Mismatch (CV) The ISID value received in a packet isnot the same as the configured ISIDvalue in the VPLS instance.37 VPLS Local Switching disabled drop (CV) VPLS local switching is disabled inthe VPLS instance.38 VPLS CPU Broadcast packet limit reached(CV)39 VPLS CPU Multicast packet limit reached(CV)40 VPLS CPU Unknown unicast packet limitreached (CV)The number of received VPLSbroadcast packets that haveexceeded the configured limit in agiven time interval.The number of received VPLSmulticast packets that haveexceeded the configured limit in agiven time interval.The number of received VPLSunknown-unicast packets that haveexceeded the configured limit in agiven time interval.41 ARP not resolved (CV) Packets are dropped because ARP isnot resolved for a destination IPaddress. Packets that are droppedwhen ARP is not resolved are knownas IP drop pending packets. IP droppending packets are configured.42 Invalid destination MAC (PE) Packets received with flow controldestination MAC addresses, andother invalid destination MACaddresses.43 Layer 2 Trace - BAD packet (PE) A Layer 2 trace route packet isreceived with an incorrect packetlength or type information.44 IP TTL too small (PE) An IP packet is received with anexpired TTL.45 IP header length error (PE) A malformed IPv4 packet with anincorrect header length.46 IP Header error (PE) An IPv4 packet is dropped becauseof an invalid IPv4 header.356 Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide53-1002426-02