ARP regression in releng-8

[Li, Qing]

I will look into it and get back to you.

-- Qing

> -----Original Message-----
> From: owner-freebsd-net at freebsd.org [mailto:owner-freebsd-
> net at freebsd.org] On Behalf Of Harti Brandt
> Sent: Sunday, November 22, 2009 5:09 AM
> To: freebsd-net at freebsd.org
> Subject: ARP regression in releng-8
> 
> Hi all,
> 
> I try to figure out something simple like the ARP retransmission
> timeout
> to populate the ipv4InterfaceRetransmitTime in the RFC4293 MIB. In
line
> 357 of netinet/if_ether.c it says:
> 
>          /*
>           * Return EWOULDBLOCK if we have tried less than
arp_maxtries.
> It
>           * will be masked by ether_output(). Return
> EHOSTDOWN/EHOSTUNREACH
>           * if we have already sent arp_maxtries ARP requests.
> Retransmit
> the
>           * ARP request, but not faster than one request per second.
>           */
> 
> Unfortunately the comment about the 1s minimum retransmit interval is
> there, but the code not. A simple ping -f shows the code transmitting
> ARP
> requests every 30 milliseconds, which is not good in my opinion.
> releng-7
> (with the old L2 code) works correctly.
> 
> BTW, what means the comment on line 282 in the same file?
> 
>          /* XXXXX
>           */
> 
> harti
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