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
