Suppose a datagram is switched through the switching fabric and arrives to its appropriate output to find that there are no free buffers. In this case:

Question

Suppose a datagram is switched through the switching fabric and arrives to its appropriate output to find that there are no free buffers.  In this case:

Answer

Another packet will be removed (lost) from the buffer to make room for this packet.

Answer

The packet will be sent back to the input port.

Answer

The packet will either be dropped or another packet will be removed (lost) from the buffer to make room for this packet, depending on policy.  But the packet will definitely not be be sent back to the input port.

Answer

The packet will be dropped (lost).

Crowdly

Suppose a datagram is switched through the switching fabric and arrives to its a...

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