IPNGWG BOF

                       Matt Mathis

========

We need jumbo packets (MTU > 64kB)

        Link     BW      MTU   pkt     # pkts 
Year    Type     (Mb/s)  (kB)  time    70 ms path
______  _______  ______  ____  ______  __________

1988    T1       1.5     1.5   8.6 ms      8         T1 NSFnet
1991    (1/2)T3  22      4     1.5 ms     46         Early T3 NSFnet 
1993    T3       44      4     750 us     94         T3 NSFnet            
1995    OC-3     150     8     440 us    160         vBNS, ATM default MTU
1997?   OC-12    600     32    440 us    160         vBNS
1999??  OC-48    2400    64    220 us    320         ???? 

========

Add explicit support for "Light Weight" headers

  o  as in Van Jacobson's slip header compression

  o  Topology/usage assumptions

     -  Forward path == Return Path
     -  The link costs more than the CPU
     -  Not needed except for slow links
     -  Compressing router will sniff transport state
     -  Support "final/initial" hop(s) for mobile routing

  o  Multiple light weight IPng formats

     -  V.J. style fully compressed TCP/IPng
     -  Full UDP/TCP over thin IPng (state refresh)
     -  Stream mode???

     -  DO NOT NEED TO SPECIFY NOW,
        except the light weight indicator

  o  Header Bytes in base IPng are cheap

     -  16 byte addresses are fine
     -  Can consider adding other fields...


With good compression we can have our cake, and eat it too!