Cabletron Systems 2H33-37R User Manual

Chapter 5: Local Management

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 frame, or a network propagation delay greater than 
51.2 µs.

CRC Errors (Read-only)

Displays the number of frames with bad Cyclic Redundancy Checks 
(CRC) received from the network. The CRC is a 4-byte field in the data 
frame 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 occur 
when the total number of bits in a frame are not divisible by eight due to 
missing bits in the bytes contained in the frame.

Undersize Packets (Read-only)

Displays the number of frames received with a valid CRC and whose size 
was less than the minimum Ethernet frame size of 64 bytes (not including 
the preamble).

Oversize Packets (Read-only)

Displays the number of frames received with a valid CRC and whose size 
exceeded 1518 data bytes (not including preamble).

Broadcasts (Read-only)

Displays the number of broadcasts transmitted and received.

Multicasts (Read-only)

Displays the number of multicasts transmitted and received.

Link Status (Read-only)

Indicates if the network or port is linked (Link) or not linked (No Link).