Changing the channel datarate in ned file

[Sheri]

Hi

Is there away in Ned file to change the channel datarate? I have this tree topology and i would like to decrease the data rate in the for loop, so the link will be 16*2^height instead of 16Gbps.

channel Link extends ned.DatarateChannel

{

    datarate = 16Gbps; 

    delay = 0us;

}

   connections allowunconnected:

        for i=0..((4^(height-1)-1)/3)-1 {

            router[i].out[1] <--> Link <--> router[4*i+1].in[0];

            router[i].in[1] <--> Link <--> router[4*i+1].out[0];

            router[i].out[2] <--> Link <--> router[4*i+2].in[0];

            router[i].in[2] <--> Link <--> router[4*i+2].out[0];

            router[i].out[3] <--> Link <--> router[4*i+3].in[0];

            router[i].in[3] <--> Link <--> router[4*i+3].out[0];

            router[i].out[4] <--> Link <--> router[4*i+4].in[0];

            router[i].in[4] <--> Link <--> router[4*i+4].out[0];

        }

[Sheri]

?

[Rudolf Hornig]

I'm not sure where 'height' is coming, but:

        for i=0..((4^(height-1)-1)/3)-1 {

            router[i].out[1] <--> Link { datarate = 16*2^height } <--> router[4*i+1].in[0];

in this case you should not specify the datartate in the Link's definition, or at least specify it using  = default(16Gbps)

[Sharifa Al Khanjari]

height is a variable to that can be initialized in the ini file.

Thanks, it worked. 

 for i=0..((4^(height-1)-1)/3)-1 {

            router[i].out[1] <--> Link { datarate = 16*2^height ; } <--> router[4*i+1].in[0];

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