Re: [ns] Reg timestamps!!

[Xuan Chen <xuanc@ISI.EDU>]

On Mon, 18 Jun 2001, Archana Krishna wrote:

> Hi,
> I am trying to implement an admission control algorithm on ns.I am
> using udp flows. I need to record the time when the packet
> is generated by the source. This recorded time should be accessible at the
> point the packet reaches the destination.Having a time stamp on each
> packet solves the problem.
>
> There is hdr_cmn :
>
> struct hdr_cmn {
>         packet_t ptype_;                // packet type (see above)
>         int     size_;          // simulated packet size
>         int     uid_;           // unique id
>         int     error_;         // error flag
>         double  ts_;            // timestamp: for q-delay measurement
>         int     iface_;         // receiving interface (label)
>         int     direction_;     // direction: 0=none, 1=up, -1=down
>         int     ref_count_;     // free the pkt until count to 0
>
> Do you think I can use this for time stamping the udp packets I
> generate????
You mean the ts_ field, right? I think it should be ok.

-chen xuan

>
> Can anyone please answer my question.
> Thanks in advance.
> Archanaa
>
>

-- 
Xuan Chen
USC/ISI