RE: SDLC, 2793 and IOP-less mode

Pete,

What you are seeing is the result of IBM changing the default
configuration of the 520 and not including an IOP as a base feature. To
help you one of us would need to look at your rack config to see if
there is an IOP available to support the 2793. If there isn't then you
would have to buy a 2844 to install in the 520 as a first step.

Did your business partner discuss your requirement for SDLC with you? It
sounds like they missed something to me. You should probably go back to
them and have them get the configuration correct.

Kendall Kinnear
System i5 Architect
Stonebridge
 
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-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Pete Helgren
Sent: Wednesday, July 19, 2006 10:59 AM
To: Midrange Mailing List
Subject: SDLC, 2793 and IOP-less mode

I am getting a error when I try to vary on an SDLC line on a brand new 
520 at V5R3M0..  Doing some research I came across what I think is a 
direct hit on the problem but I don't understand the resolution.  Could 
one of you hardware gurus chime in?

The description of the proposed resolution is from an IBM support
document:

The 2793 2-port WAN adapter card (IOA) at Releases V5R3M5 and V5R4M0 
supports only a PPP connection for ECS or Service Agent when operating 
in an IOP-less configuration. This is supported only over port 0 which 
is the internal modem port of the card. In IOP-less mode, port 1 
(external RS-232 port) is non-functional. Moving the IOA to a position 
under a real IOP restores the functionality of port 1.

It's the "Moving the IOA to a position under a real IOP restores the 
functionality of port 1."  Sounds simple enough (right?)....but how 
would you go about doing this?

Thanks,

Pete Helgren