D-Link DWS-4026 Product Manual - Page 135

Software User Manual 12/10/09 D-Link Unified Access System Table 60: Port Fields (Cont.) Field Description Total Packets Received Without Errors The total number of packets received that were without errors. Unicast Packets Received The number of subnetwork-unicast packets delivered to a higher-layer protocol. Multicast Packets Received The total number of good packets received that were directed to a multicast address. Note that this number does not include packets directed to the broadcast address. Broadcast Packets Received The total number of good packets received that were directed to the broadcast address. Note that this does not include multicast packets. 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 between 20 ms and 150 ms. Fragments Received Undersize Received Alignment Errors Rx FCS Errors Overruns The total number of packets received that were less than 64 octets in length with ERROR CRC (excluding framing bits but including FCS octets). The total number of packets received that were less than 64 octets in length with GOOD CRC (excluding framing bits but including FCS octets). The total number of packets received that had a length (excluding framing bits, but including FCS octets) of between 64 and 1518 octets, inclusive, but had a bad Frame Check Sequence (FCS) with a non-integral number of octets. The total number of packets received that had a length (excluding framing bits, but including FCS octets) of between 64 and 1518 octets, inclusive, but had a bad Frame Check Sequence (FCS) with an integral number of octets The total number of frames discarded as this port was overloaded with incoming packets, and could not keep up with the inflow. Total Ignored Frames The total number of dropped packets including those that were aborted. Total Deferred Frames The total number of frames that could not be transmitted after multiple attempts because they encountered collisions. Received Packets Not Forwarded Total Received Packets Not Forwarded A count of valid frames received which were discarded (i.e., filtered) by the forwarding process. Local Traffic Frames 802.3x Pause Frames Received Unacceptable Frame Type Multicast Tree Viable Discards Reserved Address Discards The total number of frames dropped in the forwarding process because the destination address was located off of this port. 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. The number of frames discarded from this port due to being an unacceptable frame type. The number of frames discarded when a lookup in the multicast tree for a VLAN occurs while that tree is being modified. The number of frames discarded that are destined to an IEEE 802.1 reserved address and are not supported by the system. Document 34CSFP6XXUWS-SWUM100-D7 Viewing System Statistics Page 135