6-4CHAPTER 6: MONITORING THE TR-IN-FE MODULE

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-thrusReceived—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

Clearing Screen Counters

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.

Page 42
Image 42
3Com 2000 TR manual Clearing Screen Counters, Jam Counts