[ns] Re: Question on IFQ of mobile node

[Haobo Yu <haoboy@isi.edu>]

Hi, Cindy, 

Since I'm not familiar with the mobile code, I can't answer your question.
Sorry. But I remember seeing this thread last month in this list, perhaps
you want to do a search (or just browse through April's archive). Hope
that helps.

- Haobo

On Tue, 2 May 2000, Diepchi T Tran wrote:

> Date: Tue, 02 May 2000 14:47:45 -0400
> From: Diepchi T Tran <Diepchi.T.Tran@lerc.nasa.gov>
> To: haoboy@ISI.EDU
> Cc: ns-users@mash.CS.Berkeley.EDU
> Subject: Question on IFQ of mobile node
> 
> Hi Haobo,
> I simulate a wired+wireless network including mobile-ip. I saw some packets
> dropped because of no buffer space in IFQ of the mobile node. I set the
> size of ifq for the mobile node (ifqlen option) to 50 packets. But just
> after 10th packet, one packet is dropped after every two packets sent
> because of no buffer space. Do you think it is a bug ?. I use the latest
> version of daily snapshot.
> 
> Then I increased the ifqlen option but I still get the same problem. Liu
> liqun and Rohit ( people on ns-user mailing list) suggested me to use
> "Queue set limit_ " to change the size of the queue but the result doesn't
> change. I want to use queue monitor to see the ifq size in packet. But I
> can only use queue monitor on a wired link. Do you know is there any way to
> check the the size of ifq of a mobile node?.
> Could you please help
> 
> Thank you very much,
> Cindy
>  
> Diepchi Tran 
> Phone (216) 433-8861
> Fax   (216) 433-8705
>