The IP Over NBMA (ION) Archive

[Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>]

> >> >>                src ---> R1 -----> R2----->CSR ---> R3----> dst
> >> >>                         ^                  |
> >> >>                          \----<-------<---/
> 
> >> If RESV message is in the loop (R1 or R2 or CSR) , this message is
> >> looping (CSR->R2->R1->CSR->...).
> 
> >> No. In this case, RESV message will be forwarded by R1 toward src.
> 
> PATH message is looping (src->R1->R2->CSR->R1->..) . 
> So, previous hop of Path state at R1 is flapping (Previous hop of R1
> are src or CSR.) .
> RESV message arrive R1 ,when previous hop of R1 is CSR. 
> R1 send RESV message toward CSR. This makes loop , I think.

Ah, OK, yes.

Then, as the Path state flips, the cell loop is formed and released
and looping data will be discarded.

So?

						Masataka Ohta