Re: How to find network negotiation settings?

[DrFranken <midrange@xxxxxxxxxxxx>]

Loyd,

    The settings are on the Ethernet Line Description.  Use WRKLIND 
then option 5 against the line to see both the configured and currently 
negotiated settings. Note that changes to these settings require the 
line be varied off so that work typically must be done at the console.

    If your network gear is Cisco and it's 100Mb capable only then you 
want to hard code both the speed and duplex settings and MATCH them to 
the switch gear and after bringing them back on verify in the switch 
(show int fan/n etc) and on IBM i with option 5 that they agree.  If you 
have GbE gear then *AUTO is recommended. Your 5701 card is in fact GbE 
capable.  In both cases the CMNRCYLMT parameter should be set to (1 0) 
to enable continuous retries on the Ethernet line.

    One simple test I use is to do DSPPFM on a very large file and 
simply hold the page down key for 30 seconds. Watch the screen and 
pretend that you are Commander Data and can read it all.  It should 
proceed smoothly for the entire time with no stops or pauses.  If there 
are several second pauses in there then you almost certainly have a 
mismatch between the switch and IBM i.  This will slow down many things, 
your printers included.

    - Larry "DrFranken" Bolhuis

On 4/9/2012 11:05 AM, Loyd Goodbar wrote:
> Our network team replaced all our core routers and switches this past
> weekend. Since then, our iSeries appears to be slower when talking on the
> network. This is most apparent when printing, where spooled files stay in
> PND and WTR status for longer than normal, compared to last week.
>
> I think we need to change the negotiation settings in the router and the
> iSeries for them to match. All the router ports are set to auto negotiate
> but I recall the iSeries settings are manual. I do not remember where to
> see or set the negotiation settings. Also, is a 5701 NIC gigabit capable?
>
> Thanks,
> Loyd