I have found some consistent problems in the midterm that I have had
to regrade.  Please contact me if you did the following (even if you do
not care about points, I would like to be consistent):

1a) In Question 1, if in the BGP path question, you said that another reason
   was to measure distance (this is an OK answer).

1b) In Question 1, if the total of your negative points removed from 30 is not
   the points you were assigned

1c) In the question on why DVMRP state could be less than (S,G) if you
    mentioned aggregagation of sources.

2) In question 2, if you did an explanation of the reason for blockading (we
   wanted an explanation besides the example as it was in the notes) and 
   you did mention the blockade was first done at one router and  then at the
   next, and you still got 10 points

3a) In thye DRR order question, if you took the queues (by mistake) to be
    in reverse order or drew time in reverse but you answer is consistent
    and you got 3 points, you deserve more points.  Please see me.

3b) The most important reason for the second part of 3 is that there could be
    other latency critical flows.  An alternate reason is that the flow
    could arrive to find itself already there and so get ordinary treatment,
    or the current flow could have left over quantum from  teh prev round.
    If you used these two reasons, you should get 4 points.