Re: Getting Jumbo Frames to work on a p630

From: Victor M. Riefkohl (vitinr_at_bellsouth.net)
Date: 07/03/03

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    Date:         Thu, 3 Jul 2003 11:30:56 -0400
    To: aix-l@Princeton.EDU
    
    
    

    James,
     
    Check also the following:
     
    tcp_sendspace mine are setup to 131072
    tcp_recvspace also setup to 131072
    rfc1323 my server setup to 1
     
    In my case all this preparation did not work because after asking the
    network group about the switch it end up they had another piece of equipment
    in between that would not support Jumbo frames.

    Hope it works for you. Good Luck.




    Victor M. Riefkohl
    Senior AIX System Admin - Consultant
    IBM Global Services
    -------Original Message-------
     
    From: IBM AIX Discussion List
    Date: Thursday, July 03, 2003 11:14:30 AM
    To: aix-l@Princeton.EDU
    Subject: Getting Jumbo Frames to work on a p630
     
    What else needs to be done in order to get Jumbo Frames working on a p630.
    I'm using a gigabit ethernet adapter of course. I've gone through the
    screens to enable Jumbo Frames on the adapter, but a ping with larger than
    1500 byte size just hangs. The Cisco switch that I am using has jumbo
    frames enabled on the ports. Is there some other setting that needs to
    changed other than the obvious ' chdev -l ent4 -a Jumbo_Frames=yes'?
     
    I have a few linux client machines that happily ping large frames between
    themselves, its this p630 that I am having difficulty with.
     
    Thanks,
     
    James
     
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