Tony, > |Recent postings suggest drop the first packet during map > |lookup. Oeps!!!! > |I think first packet delivery is a MUST. > > > The problem is that first packet delivery requires buffering. To quote an > esteemed colleague: "Buffering bad." ;-)
This discussion focuses on the implication of dropping or buffering the first packet of a given flow. But there are cases where other than the first packet of a given flow would need to be either buffered or dropped. Consider the scenario where an ITR goes down, and as a result *all* the flows that used to go through that ITR would need to be shifted to other ITR(s), and other ITR(s) have no mapping info for these flows. What would these other ITR(s) do with the packets of these flows as these other ITR(s) are in the process of acquiring mapping info ? Would these other ITR(s) buffer all of them until they acquire the mapping info ? (with link speeds of of several Gb/s that may be a *lot* to buffer). Or would they drop all of them until they acquire the mapping info ? (with link speeds of several Gb/s that may be a *lot* to drop). Yakov. _______________________________________________ rrg mailing list [email protected] https://www.irtf.org/mailman/listinfo/rrg
