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PPENDIX
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Port Functions
Statistics
DS2000-TS Administrator’s Guide
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Frame counts Frame counts by frame size.
Alignment Errors Number of frames that do not have an integral number of octets (LAN error condition).
CRC/Alignment errors The number of LAN frames received that are dropped due to CRC error or that frame is
not an integral number of octets (LAN error condition).
Frame too short The number of LAN frames received that were less than 64 bytes (LAN error condition).
Frame too long The number of LAN frames received that were larger than 1514 bytes (LAN error
condition).
PHY Receive errors Receive errors reported by the MAC layer, typically illegal codes.
Dropped frames Number of frames dropped due to insufficient switch buffer resources.
Jabber Counts for when a device on the network continually transmits and does not release the
carrier.
Transmitter failure The number of times the LAN was not available to transmit a frame (congestion on the
LAN).
Collisions The number of LAN frames with one or more collisions during transmission (high traffic
loads on the LAN).
Late collisions In half-duplex mode, a collision occurs after the standard collision interval due to
misbehavior on the LAN, usually due to some station operating in full duplex.
Multiple collisions Count of more than one collision.
Excessive collisions Count when retries exceeds 16.
Deferred transmissions Count of transmissions that were deferred.
OSPF Clock OSPF protocol timeout
Table A-6. Ethernet Port Statistics Attributes (Continued)
Field Description
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