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  • 1.  slow communicaton between NIM master and Client

    Posted Wed April 30, 2008 02:17 PM

    Originally posted by: SystemAdmin


    I have 2 clients
    One of them is responding quikly when making mksysb from the Master, the other one not.

    The cards on the 2 servers and the switch ports are set to 100FD.
    The only difference is that one is on network xxx.xxx.144.xxx which is working and the other
    that is not working is on xxx.xxx.145.xxx.
    The primary interface for the NIM is on 144, I configured another network using 145.
    it works but it is extremely slow. I don't understand because my cards and Port switches
    on all 100FD. Is there something else I need to configure on my NIM.
    The client and Master on both are using the proper network to communicate because that's how I
    configured it, but it's very slow.

    Any ideas, And yes did a traceroute and nothing between Master and Client.


  • 2.  Re: slow communicaton between NIM master and Client

    Posted Thu May 01, 2008 07:05 AM

    Originally posted by: nagger


    Have you check the NIM Redbook for hints and tips?
    Chapter 7 looks about right.

    Find it at http://www.redbooks.ibm.com/abstracts/sg247296.html

    It usually means you have one bit of cable running very slowly or HD or similar.

    Hope this helps, let us alll know if you work it out, thanks N


  • 3.  Re: slow communicaton between NIM master and Client

    Posted Thu May 01, 2008 08:50 AM

    Originally posted by: SystemAdmin


    I have run PING command to the client that is OK and the client that I have problems with
    and I am getting the same response time for the following command
    ping serverA 50000--> response 10ms
    ping serverB 50000--> response 10ms

    Also did netstat with no errors and no collisions??

    Did tcpdump to my 2 cards on the NIM master
    Master_net for network xxx.xxx.144.xxx -->No drop packets by the kernel
    Master_net2 for network xxx.xxx.145.xxx -->No drop packets by the kernel

    If the response times are the same with ping, why is one network taking much longer than the other one to do NIM operations such as mksysb and preview mode in patch installation.

    on the 144 network it is taking 20 minutes to do a mksysb of the client from the NIM
    and on the other network I had only backup 250MB in 2 hours so I quit.

    I will try doing the mksysb on the client and then ftp to the NIM to see if it is the network
    or not. I am not sure if it is a network or a NIM problem.


  • 4.  Re: slow communicaton between NIM master and Client

    Posted Wed May 07, 2008 10:23 AM

    Originally posted by: SystemAdmin


    cabling problem on NIM server.
    Problem solved


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