Re: IBM i Access for Web vs IBM Navigator for i

There's a handy network health checker you can use to see if you have any
networking issues. It quickly identified the DNS configuration issue I had
on a test machine.

Read about it here -
http://ibmsystemsmag.blogs.com/i_can/2013/09/application-runtime-expert-network-health-checker.html

Dawn May



From: Jim Oberholtzer <midrangel@xxxxxxxxxxxxxxxxx>
To: Midrange Systems Technical Discussion
<midrange-l@xxxxxxxxxxxx>,
Date: 11/04/2013 09:33 AM
Subject: Re: IBM i Access for Web vs IBM Navigator for i
Sent by: midrange-l-bounces@xxxxxxxxxxxx



Nevertheless, it's a reasonable question. If there is an attempt to
communicate with IPV6, then significant CPU cycles may be expended to
detect and communicate with the network. It's best to turn off IPV6
unless it is properly configured and in use. Remember the defaults are
on, not off.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On 11/3/2013 5:45 PM, Jack Callahan wrote:

Do all these systems have IPV6 configured properly? This sounds a lot

like

that problem. You don't notice it when all the IP you're doing is

telnet or

FTP, but when you start to use highly interactive web interfaces,

like

WebNav, missing IPV6 DNS server definitions KILL performance.

A bit presumptive of IBM to assume IPv6 is in use, if that's the cause of
the performance problem.

Haven't run across anywhere in IBM documentation the states IPv6 is the
preferred networking protocol for Navigator for i.

IPv6 certainly isn't in use on my firm's networks- still running IPv4
everywhere. And yet other web apps seem to run acceptably.
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