Interface error description (giant/jabbers)

Input error giant    
A giant frame is any frame whose size exceeds the maximum transmission unit (MTU)

Input error runt     
A runt is a frame that is smaller than the minimum frame size for IEEE-802.3 standard frames. In ethernet thats 64 bytes.

Input error jabbers     
A jabber is a frame longer than 1518 octets (which exclude framing bits, but include FCS octets), which does not end with an even number of octets (alignment error) or has a bad FCS error.
 
Input error fragments    
Shows the number of packets received incorrectly having a CRC error and a noninteger number of octets. On a LAN, this is usually the result of collisions or a malfunctioning Ethernet device.       

Input error CRC     
Indicates that the cyclic redundancy checksum generated by the originating LAN station or far-end device does not match the checksum calculated from the data received. On a LAN, this usually indicates noise or transmission problems on the LAN interface or the LAN bus itself. A high number of CRCs is usually the result of collisions or a station transmitting bad data.

Input error collisions     
Collisions are expected when Ethernet is operating in half duplex mode.both devices use the same approach. Either both devices should auto negotiate both speed and duplex or both devices should set both speed and duplex.

Input error symbol     
A Symbol error means the interface detects an undefined (invalid) Symbol received. Small amounts of symbol errors can be ignored. Large amounts of symbol errors can indicate a bad fiber or Optics.
 
Overrun    
Shows the number of times that the receiver hardware was incapable of handing received data to a hardware buffer because the input rate exceeded the receiver's capability to handle the data.
 
Ignored    
Shows the number of received packets ignored by the interface because the interface hardware ran low on internal buffers. These buffers are different from the system buffers mentioned previously in the buffer description. Broadcast storms and bursts of noise can cause the ignored count to be increased.
           

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