User`s guide

Chapter 5: Local Management
5-108 6E123-50 and 6E133-49 User’s Guide
Port # (Read-Only)
Indicates the current port for which statistics are displayed. The port
number can be changed by using the PORT # command field at the
bottom of the screen. Depending on the port number entered, the Network
# field will automatically change to indicate the associated ENET. For
details on how to use this field, refer to Section 5.32.1.
Bytes Received (Read-only)
Displays the number of bytes received.
Frames Received (Read-only)
Displays the number of frames received.
Total Errors (Read-only)
Displays the total number of errors.
Collisions (Read-only)
Displays the total number of collisions that were detected.
OOW Collisions (Read-only)
Displays the number of Out Of Window (OOW) collision errors detected.
These collisions can be caused by a station on the network violating
Carrier Sense and transmitting at will, a cable failure occurring during the
transmission of a packet, or a network propagation delay greater than
51.2 µs.
CRC Errors (Read-only)
Displays the number of packets with bad Cyclic Redundancy Checks
(CRC) received from the network. The CRC is a 4-byte field in the data
packet that ensures that the data that is received is the same as the data
that was originally sent.
Alignment Errors (Read-only)
Displays the number of alignment errors detected. Alignment errors are
due to missing bits in the bytes contained in the packet, because the total
number of bits in the packet are not divisible by eight.
Undersize Packets (Read-only)
Displays the number of packets received with a valid CRC and whose size
was less than the minimum Ethernet frame size of 64 bytes (not including
the preamble).