Hi Zarraf, When the MN moves from home network to foreign network, and first registers its home address with its HA, the HA performs proxy DAD for the home address to make sure that no one else on the home link has the same address. The proxy DAD creates the 1s delay in T2. If you have two foreign networks and have the MN move between them, T2 will be much shorter.
Regardrs, Henrik On Nov 26, 2007 9:46 PM, <[EMAIL PROTECTED]> wrote: > > Hello All, > > I am running MIPL 2.0.1 and my configuration is as follows: > > HA<============>CoreRouter<============>AR > > whereas my CN is attached to the CoreRouter (CR), and this whole setup is > confined within a lab and I am emulating handover by switching to the ESSID > of the AR (visit net), and back to the ESSID of the Home NEtwork when i want > to emulate the "return home" scenario. My MN is communicating with the WLAN > interfaces ofthe HA and AR in the ad-hoc mode. > > I am calculating the handover delay as follows: > > Th = T1 + T2 + T3 > > where > T1 = L2 ho + CoA auto-config + DAD > > T2 = Home Registration (time calculated as th difference between te sent time > of the BU and reeive time of the BA) > > T3 = time for Return Routability procedure and CN registration. > > and Th = total handover delay. > > In my calculations i measure T3 = 0.007 sec whereas T2 = 1.041 sec. > > I am surprised as to why is T2>T3, or am i doing something wrong. > > In my opinion, considering my test bed, with short and equal distances to > both the HA and the CN, shouldn't T2 be also "roughly" in the same range as > T3 or is there a reason behind this long delay? > > Can anyone send me their data, i would appreciate it. > > Best Regards > > Zarrar Yousaf > _________________________________________________________________ > Put your friends on the big screen with Windows Vista(R) + Windows Live™. > http://www.microsoft.com/windows/shop/specialoffers.mspx?ocid=TXT_TAGLM_CPC_MediaCtr_bigscreen_102007 > _______________________________________________ > mipl mailing list > [email protected] > http://www.mobile-ipv6.org/cgi-bin/mailman/listinfo/mipl > _______________________________________________ mipl mailing list [email protected] http://www.mobile-ipv6.org/cgi-bin/mailman/listinfo/mipl
