[Csci551-talk] TTL in project B

[siddharth vora]

 Hi,

 My question is, If every node maintain the number of packets sent by a particular SENDER we can detect the loop.


 But, in this project we are not going to transfer from Shared tree to Source specific tree so, I think we have to implement TTL to prevent the loop.

Please correct me if I am wrong !!

Siddharth.
2632 Ellendle St.,
Appt. # 117
LA, CA 90007
Phone : 323 737 7522

----- Original Message -----
From: John Heidemann <johnh@ISI.EDU>
Date: Sunday, April 20, 2003 9:49 pm
Subject: Re: [Csci551-talk] TTL in project B

> On Sun, 20 Apr 2003 11:01:11 PDT, jigesh vora wrote: 
> >Hi,
> >  since we are using only muticast trees for communication there will not 
> be any loops. So can someone tell me the use of TTL in the messages?
> >
> >Thanx
> >Jigesh
> 
> You're correct that correct code will not have any loops.
> 
> All students in the class who can guarantee that all their code will
> work completely correctly the first time are not required to implement
> TTLs.
> 
> For the rest of the class, you might find that TTLs prevent
> catestrophic meltdowns if you accidently get a loop while you're
> testing your code.  (Think about it: what happens if you accidently
> get a loop where the packets get sent to multiple places... every time
> they loop back.)
> 
>   -John Heidemann
>