> 1. Using a leaky bucket filter with T=10 and tau=5, initially full,
> which of the following packets are conformant? Arrival times are given.
> 
> 	0	5	10	25	30	40
 
Here are the arrival times with bucket capacity. The capacity above is
the capacity before the current packet is processed; if that packet 
is conformant then the bucket is decremented by T (=10 here).

arrival          0        5        10        25        30        40
bucket          15       10         5        15        10        10
                 5        0         5         5         0         0
                                   **

The packet arriving at T=10 is nonconformant.

> 2. What are some differences and similarities between ATM CBR traffic and
> RT-VBR traffic? 
> 
> 
> 3. What ways can ATM address congestion that are not available in IP?
 
The main technique is admission control.