User Manual for the NETGEAR 7200 Series Layer 2 Managed Switch Software

Total - 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/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 between 64 and 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 between 64 and 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 - a count of valid frames received which were discarded (i.e. 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.

VLAN Membership Mismatch - the number of frames discarded on this port due to ingress filtering.

VLAN Viable Discards - the number of frames discarded on this port when a lookup on a particular VLAN occurs while that entry in the VLAN table is being modified, or if the VLAN has not been configured.

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.

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Switching Commands

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NETGEAR 7200 Series user manual Received Packets not forwarded