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Date: Sun, 22 Nov 2009 10:34:08 -0800
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Thread-Topic: ARP regression in releng-8
Thread-Index: Acprdr733LFX52Z/ThGrKRbHBvzPDAAK44dw
References: <20091122130156.F52486@beagle.kn.op.dlr.de>
From: "Li, Qing" <qing.li@bluecoat.com>
To: "Harti Brandt" <harti@freebsd.org>, <freebsd-net@freebsd.org>
Cc: 
Subject: RE: ARP regression in releng-8
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I will look into it and get back to you.

-- Qing

> -----Original Message-----
> From: owner-freebsd-net@freebsd.org [mailto:owner-freebsd-
> net@freebsd.org] On Behalf Of Harti Brandt
> Sent: Sunday, November 22, 2009 5:09 AM
> To: freebsd-net@freebsd.org
> Subject: ARP regression in releng-8
>=20
> Hi all,
>=20
> 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:
>=20
>          /*
>           * 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.
>           */
>=20
> 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.
>=20
> BTW, what means the comment on line 282 in the same file?
>=20
>          /* XXXXX
>           */
>=20
> harti
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