Re: PATCH: VLAN support for 3c59x/3c90x

From: Lee Revell (rlrevell_at_joe-job.com)
Date: 07/31/04

  • Next message: Alan Cox: "Re: PATCH: VLAN support for 3c59x/3c90x" 
    To: Ben Greear <greearb@candelatech.com>
Date:	Sat, 31 Jul 2004 16:16:29 -0400

    On Sat, 2004-07-31 at 13:21, Ben Greear wrote:
    > Willy Tarreau wrote:
    > > I've seen several drivers which silently add 4 bytes to the hardware
    > > config when CONFIG_VLAN is set. I find it better than fooling the IP
    > > stack into using 1504 bytes, which is a disaster on UDP !
    >
    > It would be a disaster with any IP protocol, not just UDP.

    UDP is prone to *much* weirded behavior than TCP in the face of things
    like this. I once had an NFS server and client using UDP. A had its
    block size set to 8K, B to 32K. For some reason the mount succeeded
    with these options, but when you copied a file from A to B (like, oh,
    say, /etc/passwd), it "worked", but the file was truncated to 8K! The
    only indication that anything was wrong (other than hundreds of users
    unable to log in) was a mild warning in the logs.

    I am not sure what would have happened with a TCP mount, but not that!

    Lee

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  • Next message: Alan Cox: "Re: PATCH: VLAN support for 3c59x/3c90x"

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