[Csci551-talk] waiting for stability, non-zero loss probability

[John Heidemann]

On Wed, 14 Apr 2004 21:46:57 PDT, ajay salpekar wrote: 
>1) "w 0 0.0.0.0 0.0.0.0" would cause say a 3 second sleep() in my program 
>execution to give time for routes to stabilize. But it's also mentioned that 
>if we get several "s sumthng sumthng" lines in a row, we cant choose to put in 
>say a tiny sleep() for packet travel-time. So my question is, how is this 
>different from a "w sumthng sumthng" line? If we're allowed to make routers 
>pause between a few consecutive "s sumthgn sumthgn" lines, why is the "w" line 
>specification included?
>
>I'm thinking maybe I've got something very very wrong somewhere in my 
>reasoning or interpretation.. could you please clarify?


Presumably packets might require a different amount of time to travel
than routing does to converge.

>
>
>2) The last line for 3. talks about not counting dropped packets as received 
>ones. But in 1. Overview it says "You may assume that the loss rate will 
>always be zero for all stages of this project"
>
>What do I interpret from these two references?

They're not actually in conflict, although the second that you list
perhaps makes the first not very relevant :-)

   -John Heidemann