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Chapter 3 ROM Monitor Commands
Nortel Networks 5399 Access Switch Hardware Installation Guide
Table 3-2. Network Statistics (continued)
Statistic Description
Bus Wait Drops The number of packets dropped due to waiting too
long for a bus to become available.
Bad Types/Lengths The number of unknown packet types if Ethernet
DIX encapsulation is being used. The number of
packets with illegal lengths if IEEE 802.2/802.3
encapsulation is being used.
Frames Sent The number of frames sent.
Carrier Sense
Losses
The number of times packets could not be
transmitted because the Remote Access
Concentrator lost the Carrier Sense signal – usually
the result of excessive traffic on the Ethernet.
Clear to Send
Losses
The number of times packets could not be
transmitted because the Remote Access
Concentrator lost the Clear to Send signal – usually
the result of a serious hardware failure or
incompatibility.
Collisions Detected The number of times the Remote Access
Concentrator had to retry transmissions
automatically – usually the result of normal Ethernet
traffic. These retries do not causethe boot command
to display ‘‘*.”
Excessive Collision
Losses
The number of times the Remote Access
Concentrator could not transmit packets because
there were too many collisions – usually the result
of excessive traffic on the Ethernet (but can be due
to wiring errors or hardware failure). The boot
commanddisplaystheseretriesas“*.”