SLM-5650B Satellite Modem
Revision 2
Network Processor (NP) Interface 8–47 MN-SLM-5650B
Tx Collision Frames
The counters provided in this table are applicable in half-duplex only.
Column Description
Port
The corresponding Ethernet port on the NP Interface and, when in BPM Mode, the base
modem’s J5 Ethernet port.
Collision
The number of Collision events seen by the GMAC, not including those controls in a
single, Multiple, Excessive or Late.
Late Collision
The number of times a collision is detected later than 512 bits-times into the
transmission of the frame.
Single Collision
The total number of successfully transmitted frames that experienced exactly one
collision.
Multiple Collision
The total number of successfully transmitted frames that experienced more than one
collision.
Maximum Collision
The number of frames dropped in the transmit GMAC because the frame experienced
16 consecutive collisions.
Tx Discarded/Filtered
Column Description
Port
The corresponding Ethernet port on the NP Interface and, when in BPM Mode, the base
modem’s J5 Ethernet port.
Discarded
The total number of frames received with either FCS errors or Tx Maximum Collision
frames.
Filtered Number of Tx frames filtered. Currently not implemented.
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