[ECOS] Re: [Fwd: FreeBSD network stack question]

[Grant Edwards]

In gmane.os.ecos.general, you wrote:

> If we collect a packet trace with tcpdump, we see an ARP request and ARP 
> reply, then we see the 2nd segment of the first message - the first 
> segment of the first message is never transmitted.

Now you understand why there's a "U" in "UDP".  ;)

> 1. udp_output calls ip_output
> [...]
> 8. ip_output believes that all is well with the first segment and 
> proceeds to send the second.  By now, the ARP resolution process has 
> completed, and the second segment is transmitted normally.
>
> Is this normal?

I think so.  UDP packets are allowed to vanish pretty much
anywhere along the way.

-- 
Grant Edwards                   grante             Yow!  I have many CHARTS
                                  at               and DIAGRAMS...
                               visi.com            

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