Hello,
In a wireless routing protocol, when there is no mobile node in the
tranmission range of a node, it can use a callback routine. For
instance in UM-OLSR:
=====
if (use_mac()) {
ch->xmit_failure_ = olsr_mac_failed_callback;
ch->xmit_failure_data_ = (void*)this;
}
=====
Here's my problem. Before olsr_mac_failed_callback executed well, but
after a week of many modifications of NS-2 code (packet header) and
UM-OLSR, now nothing happens when a mobile node can't forward a
packet. Normally in nam I saw a dropped packet and
olsr_mac_failed_callback is called. But now I don't see dropped
packets in trace file.
It's very kind if anyone knows what has happened.
Thanks,
--
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