Good question. You'll get confusing and sometimes conflicting packets sizes
when setting it at the agent, transport or application level, but this is at
the same layer.
Maybe the send is L2 packet size, with l2 headers, and recv is L4 pakcet
size without headers
Try enabling the RTR and AGT traces
Pedro Vale Estrela
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
> Of Lars Lars
> Sent: segunda-feira, 18 de Dezembro de 2006 21:46
> To: ns-users@ISI.EDU
> Subject: [ns] CBR packet size on 802.11b link
>
>
> Hi,
> I'm sending 1004 Byte CBR packets using a UDP agent with a packet size of
> 1024. After the RTS/CTS handshaking is complete I can see the packet
> sending
> and receiving. Tracefile extract is below. Why is the cbr packet size 1076
> when sending and 1024 when arriving??
>
> L
>
>
> s 1.213410777 _0_ MAC --- 0 RTS 44
> r 1.213763444 _1_ MAC --- 0 RTS 44
> s 1.213773444 _1_ MAC --- 0 CTS 38
> r 1.21407811 _0_ MAC --- 0 CTS 38
> s 1.21408811 _0_ MAC --- 267 cbr 1076
> r 1.215045868 _1_ MAC --- 267 cbr 1024
>
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