Cabletron Systems SEHI100TX- User Manual

Chapter 7: Local Management

Displays the number of Out Of Window collisions. OOW collisions are 
usually caused by the network being too long where the round trip 
propagation delay is greater than 51.2 

µ

s (the collision domain is too 

large), a station somewhere on the network is violating Carrier Sense and 
transmitting at will, or a cable somewhere on the network failed during 
the transmission of the packet.

Displays the number of packets with bad Cyclic Redundancy Checks 
(CRC) that have been received from the network. The CRC is a 4-byte 
field in the data packet that ensures that the transmitted data that is 
received is the same as the data that was originally sent.

Displays the number of errors due to misaligned packets.

Displays the number of runt packets received from the network. A runt 
packet is less than the minimum Ethernet frame size of 64 bytes, not 
including preamble.

Displays the number of packets received that exceed 1518 data bytes, not 
including preamble.

Displays the administrative status of the port selected. The two possible 
status messages are Enable or Disable.

Displays the segmentation status of the port selected. The two possible 
status messages are Segmented or Unsegmented. The SEHI and SEH 
automatically partition problem segments, and reconnect non-problem 
segments to the network.

This command lets the user enable the selected port.

This command lets the user Disable the selected port.

SEHI Book  Page 22  Wednesday, May 15, 1996  10:42 AM