One question on Multicast

[Lam Chi Yung <chiyung@cs.ust.hk>]

Hello,

	We try to build a network topology (with around 30 nodes) and
introduce multicasting. Also, we have agents at the receivers that handle
unicast communication among themselves.
	
	We find that, some unicast packets are not sent from the source agent
(Hence the possibility of packet loss is ruled out). However, we cannot
know what the reason is. 

	Moreover, if we have fewer nodes, more packets "appear". 

	Could anyone give any idea on it? Thanks.

Yours,
Chi-yung