Re: [ns] How to carry extra information in graft messages

[Zhang Zai Chen <zczhang@eee.hku.hk>]

Thanks.  But when to add the information?  The packet is allocated by the
mcastControlAgent, the agent then puts some information in the packet header.
  So the mcastControlAgent should obtain the information first.

Debojyoti Dutta wrote:

> One simple way to do it is to add to packet header some info you want. Or
> your could send control messages and trap them
>
> Cheers
> Debo
>
> On Tue, 20 Feb 2001, Zhang Zai Chen wrote:
>
> > Hi,
> >
> > Suppose I have an agent at a multicast receiver.  When it sends a graft
> > message upstream, it calls "join-group"s of Node, mrtObject, and DM.
> > Eventually, the "send" cmd of mcastControlAgent is called, which
> > allocates a packet, and sends it to the counterpart agent at the
> > upstream node.
> >
> > Now I want to carry some information, e.g. some flags, in graft
> > messages.  How should I do?  In other words, how to pass information
> > from my agent to the mcastControlAgent?
> >
> > Thanks.
> >
> > Zhang Zaichen
> >
> >
> >
> >