When R1 sends pkts at and they are timeout on reponse? It'll have to walk its tables to find an alternative party to crash.
At 10:54 AM 2/13/02 -0600, Stephen Sprunk wrote: >Thus spake "Ali Boudani" <[EMAIL PROTECTED]> >> If we have the following figure: >> >> R1---------R2---------R3---------R4 where R1 to R4 are unicast routers. >> R1 is sending packets to R4. If R4 goes down, when R1 will detect this?? >> Before sending packets or after? > >Your question presupposes that R1 is somehow aware of R4. If you can answer >how that is, you will know if/when R1 will detect a subsequent failure. > >S > > >