3com 2000 TR Manual De Usuario

C

HAPTER

 6: M

ONITORING

 T

HE

 TR-

IN

-FE M

ODULE

Frames Received—The total number of frames that 
have been received by the port including frames with 
errors.

Frames Transmitted—The total number of frames 
transmitted by the port, including frames with errors.

Multicasts Frames—The number of frames success-
fully received with a multicast destination address. 
This number does not include frames directed to a 
broadcast address or frames received with errors.

Broadcast Frames—The number of frames received 
that have a broadcast destination address. This 
number does not include frames with errors.

Octets Received—The number of octets received by 
the port, including the MAC header and CRC. Octet 
counters are accurate to the nearest 256-byte bound-
ary.

Octets Transmitted—The number of octets trans-
mitted by the port, including the MAC header and 
CRC. Octet counters are accurate to the nearest 
256-byte boundary.

Jam Counts—

Frames Forwarded—The total number of frames 
received by this port and then forwarded to their des-
tination address.

Cut-thrus Received—The total number of cut-thru 
packets received on the port.

Errors—Total of both line errors (CRCs) and lost 
frames.

Frame Size Analysis—A series of counters that rep-
resent the composition of the traffic on the Switch 
2000 TR. The counters display the percentage of 
packets categorized by received length as represented 
by the following octet parameters:

■

18 to 63 octets

■

64 to 127 octets

■

128 to 255 octets

■

256 to 511 octets

■

512 to 1023 octets

■

1024 to 2047 octets

■

2048 to 4095 octets

■

Packets greater than 4095 octets

To make it easier to note the changes in statistic val-
ues, you can reset the value of statistics shown on the 
screen to zero. Resetting the values shown on the 
screen does not reset the statistic values stored on the 
device.

Select the CLEAR SCREEN COUNTERS button to reset 
the counters on the screen to zero.