Netgear M4100-26G CLI Manual - Page 523
Total Packets Received with MAC Errors, Total Received Packets Not Forwarded
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ProSafe M4100 and M7100 Managed Switches Term Definition Packets Received • with MAC Errors • Total Packets Received with MAC Errors - The total number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. Jabbers Received - The total number of packets received that were longer than 1518 octets (excluding framing bits, but including FCS octets), and had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error). Note that this definition of jabber is different than the definition in IEEE-802.3 section 8.2.1.5 (10BASE5) and section 10.3.1.4 (10BASE2). These documents define jabber as the condition where any packet exceeds 20 ms. The allowed range to detect jabber is 20-150 ms. Fragments/Undersize Received - The total number of packets received that were less than 64 octets in length (excluding framing bits but including FCS octets). Alignment Errors - The total number of packets received that had a length (excluding framing bits, but including FCS octets) of from 64 through 1518 octets, inclusive, but had a bad Frame Check Sequence (FCS) with a non-integral number of octets. Rx FCS Errors - The total number of packets received that had a length (excluding framing bits, but including FCS octets) of from 64 through 1518 octets, inclusive, but had a bad Frame Check Sequence (FCS) with an integral number of octets. Overruns - The total number of frames discarded as this port was overloaded with incoming packets, and could not keep up with the inflow. Received Packets • Not Forwarded • • Total Received Packets Not Forwarded - A count of valid frames received which were discarded (in other words, filtered) by the forwarding process Local Traffic Frames - The total number of frames dropped in the forwarding process because the destination address was located off of this port. 802.3x Pause Frames Received - A count of MAC Control frames received on this interface with an opcode indicating the PAUSE operation. This counter does not increment when the interface is operating in half-duplex mode. Unacceptable Frame Type - The number of frames discarded from this port due to being an unacceptable frame type. Multicast Tree Viable Discards - The number of frames discarded when a lookup in the multicast tree for a VLAN occurs while that tree is being modified. Reserved Address Discards - The number of frames discarded that are destined to an IEEE 802.1 reserved address and are not supported by the system. Broadcast Storm Recovery - The number of frames discarded that are destined for FF:FF:FF:FF:FF:FF when Broadcast Storm Recovery is enabled. CFI Discards - The number of frames discarded that have CFI bit set and the addresses in RIF are in non-canonical format. Upstream Threshold - The number of frames discarded due to lack of cell descriptors available for that packet's priority level. Utility Commands 523