RE: Can someone explain this?

[Dennis <iseries@xxxxxxxxxxxx>]

My thinking is that the ARP was populated with HTTPD-related information because of high (rather, recen) activity, and that the TELNET data had been flushed for the reverse reason.  Of course protocol has nothing to do with ARP.  (Or did I say that backwards?  :)

"Josh Diggs" <JDiggs@xxxxxxxxxxxx> wrote:

> I don't think a problem with arp tables can adequately explain why
> telnet worked byt http didn't.  Both telnet and http function above the
> network layer which relies on the data link layer.  If there was a
> problem with the data link layer it would effect both of these
> protocols.  Of course if it was an arp table problem on a limited
> number of hosts and http and telnet connections were not tried from the
> same host then it could be an arp table issue.
>
> I don't have any good ideas for what the cause would have been but I am
> curious to know if you find out.
>
> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Dennis
> Sent: Thursday, April 14, 2011 6:00 AM
> To: midrange-l@xxxxxxxxxxxx
> Subject: Re: Can someone explain this?
>
> The system maintains an ARP (address resolution protocol) table that
> tells it how to connect to other servers.  My guess is that the ARP
> needed to be refreshed.  On a UNIX system that would be command:
>   arp -d
> But I am unsure what command might do the equivalent on i.
>
> "Don Cavaiani" <dcavaiani@xxxxxxxxxxxxx> wrote:
>
> > Last night we put in all new switches, and quickly replugged the IBM i
>
> > Ethernet cable, and the system went on running, telnet for sure.
> >
> > However, the http servers no longer connected.  This morning I 
> > re-started all the HTTP servers, but we were still unable to connect.
> >
> > I then did an IPL which brought everything back up.
> >
> >
> > --
> > This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
>
> > list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, 
> > unsubscribe, or change list options,
> > visit: http://lists.midrange.com/mailman/listinfo/midrange-l
> > or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take
> a 
> > moment to review the archives at 
> > http://archive.midrange.com/midrange-l.
>
> --
> Sent from my Galaxy tablet phone with with K-9 Mail. Please excuse my
> brevity.
> --
> This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
> list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
> unsubscribe, or change list options,
> visit: http://lists.midrange.com/mailman/listinfo/midrange-l
> or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a
> moment to review the archives at
> http://archive.midrange.com/midrange-l.
>
> -- 
> This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
> list
> To post a message email: MIDRANGE-L@xxxxxxxxxxxx
> To subscribe, unsubscribe, or change list options,
> visit: http://lists.midrange.com/mailman/listinfo/midrange-l
> or email: MIDRANGE-L-request@xxxxxxxxxxxx
> Before posting, please take a moment to review the archives
> at http://archive.midrange.com/midrange-l.

--  
Sent from my Galaxy tablet phone with with K-9 Mail. Please excuse my brevity.