ITEM: JK9946L

/Tcp/ip- Problems configuring tcpip.

Question:

7017 432
Tcp/ip- Problems configuring tcpip.

Response:

Env:4.3.2, S70, 4ea 10/100MB PCI Ethernet cards
Cust:Jay Panaikal
Problem: Customer is trying to verify operation of all of the Ethernet
        cards in this machine. He has sucessfully configured ent0/en0
        interface and can ping his gateway using it. When he tries to
        down/detach en0 and then configure one of the other three cards/
        interfaces, he claims that these other cards will INTERMITTENTLY
        be unable to ping the default gateway.
Action:I had customer run some commands to verify what was installed in
        the machines. It showed 4ea of the (22100020) PCI Ethernet cards
        At the time, ent0/en0 was configured and he could ping the gate-
        way with no problems. I had him run ifconfig en0 donw/detach, 
        then rmdev -l en0. He then went into smitty tcpip, Min.Config,
        and configured ent2/en2 with the same name and IP address.
        From the command line, a ping \,  would
        hang indefinitely. If he ran 'arp -an', it returned 'incomplete'
        We tried to delete the entry with 'arp -d \' and 
        tried running another ping, but still did not work.  We even 
        tried to down/detach en2 and reconfigured it with it's own
        IP address, still had same problem.

        According to Jay, here is how the 4 Ethernet cards are slotted:
        We used 'lsdev -Ccadapter' to list:
        ent0    20-60
        ent1    20-70
        ent2    30-58
        ent3    40-58

        He claimed that it was slotted this way:
                slot 2  ent0
        slot 4  ent1
        slot 9  ent2
        slot 11 ent3

        After checking with someone with a slotting guide, Tamera,
        who I had conferenced in, stated that the slot for ent2/en2
        should have been slot 11, and ent3/en3 should be slot 9, which
        is actually reversed from what customer thinks.  We had him swap
        the two cables between slots 9 and 11 and now he can ping the
        router with the en2 i/f.  

        Obviously, the physical slots on an S70 are not in a up/down
        order as the customer might have expected and knowledge of the
        slots and their order helped solve this problem.

Action plan: closing call per customer's approval.



Support Line: /Tcp/ip- Problems configuring tcpip. ITEM: JK9946L

Dated: January 1999 Category: N/A

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