intro; successful install of Redhat via PXE netbooting; broadcom jumbo frames question
jason at dstc.edu.au
Tue Apr 30 07:33:00 CDT 2002
On Tue, 30 Apr 2002, Arjan van de Ven wrote:
> > Anyone using jumbo frames successfully for copper GigE NICs with the
> > broadcomm chipsets? Any pointers to online docs or FAQs would be greatly
> > appreciated.
> 99% of the time the use of jumbo frames stops at the switch...
> Only few switches support jumbo frames and usually need manual
> configuring at that.
i'm using jumbo frames (well i think i am!) on intel 1000T copper
(32bit) gigE cards using Intel's 4.1.7 e1000 driver on redhat
linux 7.2 running 2.4.18-0.22.
the switch is a 3com 6 port copper gigabit one.
eth1 Link encap:Ethernet HWaddr foo
inet addr:192.168.X.X Bcast:192.168.X.X Mask:255.255.X.X
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:3902813093 errors:24 dropped:24 overruns:24 frame:0
TX packets:3902807049 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:2072552064 (1976.5 Mb) TX bytes:1833863044 (1748.9 Mb)
the machine is a dell 2450.
all i did was add MTU=9000 to the ifcfg-eth1 script.
i do occassionally get:
sending pkt_too_big to self
but only on the nfs client, not the server.. weird.
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