packet fragmentation clarification

[saidfrh]

1. In load balancing or load sharing, where does reassemby of the packet occur? The destination's serial network interfaces, or the destination host?

2. If any fragment is missing, the entire sequence of fragments will need to be retransmitted. Is this done at the transport level from the inbound interface or the host/destination?

Thanks.

[Harold Ritter]

1- The reassembly always takes place on the destibation host.

2- The retransmission of unacknowledged TCP segments is always done by the source host.

Hope this helps,

[saidfrh]

1. By "destination host" are you reffering to network router, where the 'PC" is connected to? or the PC-final destination?

2. Where is the unacknowledged segments occur at the destination router, or the end destination, being a PC?

Thanks.

Said

[Harold Ritter]

1- The PC. The reassembly is always performed the IP endpoint.

2- The PC. The destination wouldn't send an acknowledgment message if it is missing a fragment. The source would then need to retransmit the unacknoledged information.

The routers are not involved at all with the TCP session. The routers are simply involved at layer 3.

Hope this helps,

[saidfrh]

hritter,

Thank you for clarifying the matter.

Said