[ns] MIP - Too long handover time

[Michal Lewandowski]

Hi all,

I'm doing some experiments with Mobile IP and I think I found a serious
problem.

I'm using standard tcl file and I see that the time of handover is much to
long.

After investigations I found out that handover ends when packet “message”
is called.

I thing this is an ARP packet. When I set traffic to the Mobile Node I
managed to solve this problem by calling arprequest() function by Foreign
Agent every time MN tries to register.

The problem is when traffic is up, I mean when MN is a source. I tried
calling arprequest() in several combinations, but with no positive results.

Does anybody know what is going on with this simulator (I’m using ns2-28).
Why this problem occurs at all? And how to solve it? I think everyone
working with Mobile IP is in the same situation. Or aybe this ARP problem is
well known, maybe updating ARP table after registration request is not in
the standard, it is not a part of basic SUN’s MIP model?

Thanks for help,

Michal


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