Date: Mon, 9 May 2016 14:57:07 -0700 From: Dieter BSD <dieterbsd@gmail.com> To: freebsd-hackers@freebsd.org Subject: Re: TCP problems Message-ID: <CAA3ZYrBP8p9krGnUCUeazSzHo9dXHd60xc3ryeAJzJxrQs-%2BAw@mail.gmail.com>
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Larry:
> Can you do a sysctl dump for each NIC to see their settings?
# sysctl -a | grep re0
dev.miibus.0.%parent: re0
dev.amdtemp.0.core0.sensor0: 16.2C
# sysctl -a | grep ue0
#
Hmmmm, 16.2 degrees C = 61.16 degrees F Seems very unlikely.
Somehow I don't think this is what you had in mind?
ifconfig says:
re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=82098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
media: Ethernet autoselect (1000baseT <full-duplex>)
ue0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=80009<RXCSUM,VLAN_MTU,LINKSTATE>
media: Ethernet 100baseTX <full-duplex>
> Keep in mind, if you are going through a switch, you may need to bump
> the switch's MTU too if you want to try jumbo frames. Are these machines
> direct connected?
G_re0 ----- Netgear GS116 --- Netgear GS108 --- T_bge0
--- A_tlp0 NetBSD/alpha tulip 10 Mbps
G_ue0 ----- Netgear GS108 --- T_nfe0
http://www.downloads.netgear.com/files/GDC/datasheet/en/GS116v2.pdf
doesn't seem to be sure about the MTU:
page 1 says 9 KB
page 2 says 16 KB
But ifconfig refuses to increase MTU for ue0, so...
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