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At8902m utility commands – Kontron AT8902M CLI User Manual

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AT8902M

Utility Commands

Page 5 - 11

AT8902M CLI Reference Manual

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 dis-

carded (in other words, filtered) by the forwarding pro-

cess.

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 indicat-

ing 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 dis-

carded 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 pri-

ority level.

Packets Transmitted Octets

Total Bytes

- The total number of octets of data (includ-

ing those in bad packets) received on the network (exclud-

ing framing bits but including FCS octets). This object

can be used as a reasonable estimate of Ethernet utiliza-

tion. If greater precision is desired, the etherStatsPkts

and etherStatsOctets objects should be sampled before and

after a common interval. -----

Packets Transmitted 64 Octets

- The total number of pack-

ets (including bad packets) received that were 64 octets

in length (excluding framing bits but including FCS

octets).

Packets Transmitted 65-127 Octets

- The total number of

packets (including bad packets) received that were between

65 and 127 octets in length inclusive (excluding framing

bits but including FCS octets).

Packets Transmitted 128-255 Octets

- The total number of

packets (including bad packets) received that were between

128 and 255 octets in length inclusive (excluding framing

bits but including FCS octets).