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Message-ID: <468D6A3A.3040101@tmr.com> Date: Thu, 05 Jul 2007 18:01:30 -0400 From: Bill Davidsen <davidsen@....com> To: gshan <gshan@...atel-lucent.com> CC: netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: Big sized packets have been dropped strangly gshan wrote: > Hey Guys, > > I got a strange problem recently but no ideas, so to post the question > here. We have a FPGA what finish ATM AAL5 to ethernet frame, and CPU > receives IP packets from it. The interface based on the FPGA (called > sar0) has been bound with several IP addresses. When the MTU of the > interface is configurated to 1500, trivial packets can be received, but > big-sized packets are dropped. If the MTU is increased to 9500, > everything is ok except the NFS connection. We mounted with another > machine through sar0. When the MTU is 9500, the speed of the NFS becomes > very very slow (it almost took 10 minutes to transfer 100KB files). > > I don't know why it is and how to solve it. Any suggestions are > appreciated! > http://groups.google.com/group/fa.linux.kernel/msg/4434f7c5d38d9292 I think that's relevant. -- Bill Davidsen <davidsen@....com> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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