Hi folks, I am trying to simulate PON (passive optical network)in NS2. Topology is given on the following link, http://129.128.4.241/~smir/pon.htm There are eight nodes connected with a passive splitter. Every splitter may have 8 or 16 nodes attached making a total of 32 or 64 nodes sharing a single fiber. Splitter shown in green are passive and they have nothing to do with routing or queues. They are just passing traffic.Down stream traffic is multicast to all nodes and only the desired node will accept. In upstream direction only one node can transmit at a given timeslot and grants for transmit are assigned by OLT for a node upon reciept of request to send.Medium between nodes and OLT is optic fiber and data is sent in bursts upstream. Queues are formed on nodes and not on splitters. I have to simulate queue lengths at nodes if all 32 or 64 nodes have data to send. Please help in this regard by giving ideas how to simulate. If I try to simulate this senario in NS2 it recognises splitters as routers.I will appreciate if some script is provided. Accept my thanks in advance. -- Meerz
