ECS4100 Series Web Management Guide-R07

Table Of Contents
Chapter 4
| Interface Configuration
Port Configuration
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Etherlike Statistics
Single Collision Frames The number of successfully transmitted frames for which transmission
is inhibited by exactly one collision.
Multiple Collision Frames A count of successfully transmitted frames for which transmission is
inhibited by more than one collision.
Late Collisions The number of times that a collision is detected later than 512 bit-times
into the transmission of a packet.
Excessive Collisions A count of frames for which transmission on a particular interface fails
due to excessive collisions. This counter does not increment when the
interface is operating in full-duplex mode.
Deferred Transmissions A count of frames for which the first transmission attempt on a
particular interface is delayed because the medium was busy.
Frames Too Long A count of frames received on a particular interface that exceed the
maximum permitted frame size.
FCS Errors A count of frames received on a particular interface that are an integral
number of octets in length but do not pass the FCS check. This count
does not include frames received with frame-too-long or frame-too-
short error.
Internal MAC Transmit
Errors
A count of frames for which transmission on a particular interface fails
due to an internal MAC sublayer transmit error.
Pause Frames Input If the counter is incrementing this means that the port is receving
pause frames.
Pause Frames Output Pause outputs occur when the receiving port is getting overloaded and
the device sends a pause request to the device connected to the port.
Symbol Errors The number of times there was an invalid data symbol when a valid
carrier was present.
RMON Statistics
Drop Events The total number of events in which packets were dropped due to lack
of resources.
Jabbers The total number of frames received that were longer than 1518 octets
(excluding framing bits, but including FCS octets), and had either an
FCS or alignment error.
Fragments The total number of frames received that were less than 64 octets in
length (excluding framing bits, but including FCS octets) and had either
an FCS or alignment error.
Collisions The best estimate of the total number of collisions on this Ethernet
segment.
Received Octets Total number of octets of data received on the network. This statistic
can be used as a reasonable indication of Ethernet utilization.
Received Packets The total number of packets (bad, broadcast and multicast) received.
Broadcast Packets The total number of good packets received that were directed to the
broadcast address. Note that this does not include multicast packets.
Multicast Packets The total number of good packets received that were directed to this
multicast address.
Undersize Packets The total number of packets received that were less than 64 octets long
(excluding framing bits, but including FCS octets) and were otherwise
well formed.
Table 6: Port Statistics (Continued)
Parameter Description