PLANET WGS3-2820 User Manual
Page 72
User’s Manual of WGS3-2820/WGS3-5220
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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.
。
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/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.
。
Total Received Packets Not Forwarded -
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.
。
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.