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Re: [ns] diffserv question
This is because of the modification in ns-2.1b7, you may want to download
the daily snapshot, which already has diffserv model intigrated. Thanks.
-chen xuan
On Thu, 12 Apr 2001 [email protected] wrote:
> hi all,
> When I install Nortel diffserv module in ns-2.1b7,
> error message indicates off_flags_ in dsred.cc is not declared.
>
> void dsREDQueue::enque(Packet* pkt) {
> int codePt, queue, prec;
> hdr_ip* iph = hdr_ip::access(pkt);
> codePt = iph->prio();
> int ecn = 0;
> //looking up queue and prec numbers for that codept
> lookupPHBTable(codePt, &queue, &prec);
>
> // code added for ECN support
> hdr_flags* hf = (hdr_flags*)(pkt->access(off_flags_));
>
> I don't know what's the meaning of off_flags_.
> How to declare it?
> I tried to declare as following and it can be complied.
> Is it right?
>
> int off_flags_;
> off_flags_=iph->offset();
>
>
> thanks a lot
>
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--
Xuan Chen
USC/ISI