Also from Sec 4 Background: If a subset of packets in a flow were to include Hop-by-Hop options, this could introduce a potential for packets to be delivered out of order to the destination. I agree with Brian - out of order risk comes with the use of IP. IP alone can’t fix this and we don’t want to impose this expectation on either routing protocols (due to multi path) or link/tunnel layers. Suggest replacing “induce the potential for l” with “increase the number and distances of" Same section, later: Significant reordering of the packets belonging to a flow can impact the performance of upper layer protocols and needs to be avoided Perhaps replacing “Significant reordering” with “iIncreasing se the number of out of order packets and distance of the reordering”. Note too that the impact isn’t just to upper layer protocols (e.g., L4); there’s an impact to IPsec (replay window) and IP fragmentation reassembly when the distance of reordering is increased. Joe |
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