Re: Interesting IP issue on my IBM i (all interfaces down, even LAN console) -- MIDRANGE-L

Ethernet over Power is much better than I expected. I had at one time 18 Phone and three ISDN lines at my house so "a LOT Of pairs." Now I have *NONE and use a tower for everything. Neighbor wanted to be able to see down the hill for the bus so their kindergartener didn't have to wait at the road and they are too far from the road to run out when the bus stops. SO I used a big bunch of those old copper pairs and ran power over them because they terminate right behind my mailbox, 100% on my property. Then I added an Ethernet over Power adapter on each end and now I have a camera beneath my mailbox running the 300+ feet back to my house. A little network magic and they can see it from their kitchen (we use the same provider). The units report 500Mb when you connect to them.

Revision II has the camera inside the mailbox with plexiglass windows. It's all built and working now but too bloody cold to go out and swap it.
- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 1/6/2014 9:00 AM, Bradley Stone wrote:

I wish I could pull wire throughout our house. I even have Ethernet over
power going out to my shop (which surprisingly is pretty stable, and fast
enough to stream videos off Netflix).

So it goes main router, wireless link to basement, which plugs into e over
p, to the shop about 300 feet away and it works. :)

But yes, Google Drive, no matter how handy, is a SUPER resource hog that
can bring any network to it's knees. I even noticed last night around 3am
when I have my backups scheduled it went down again for an hour. I use
robocopy to copy all my files to the google drive folder and then let drive
put it to the cloud. :)

On Sun, Jan 5, 2014 at 9:49 PM, DrFranken <midrange@xxxxxxxxxxxx> wrote:

Well that makes sense for sure. When it's not 10 degrees in my garage I
will occasionally run servers out there. I have used a linksys wireless
device with dd-wrt in it to bridge back to my office. Lean on the
connection a bit too much and connections are lost, for a while. Last
year we pulled a GbE link to the Garage, problem solved. :-)

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 1/4/2014 4:33 PM, Bradley Stone wrote:

I traced it down to a combo of a couple things:

1. Google Drive running on 3 machines at once, backing up files (it's a
resource and network PIG, but works great for backups)

2. The connection my i was on wasn't the best (it was behind a wireless
repeater)

I had moved it a few months ago and it worked fine.

Today I moved it back to the main office behind the main router. After
spending a couple hours remembering how to reset the DST QCONSOLE

password

I got on and did an attended IP, things worked great, and we're back in
business.

Hoping now I don't get an alert it goes down again.

Thanks for the ideas folks! I now have my laptop hooked up as a

dedicated

console and it's working fine (until I need to reset QCONSOLE again...

lol)

On Sat, Jan 4, 2014 at 12:04 AM, DrFranken <midrange@xxxxxxxxxxxx>

wrote:

Something smells 'switchy' :-)

From a PC on the same subnet:

If you PING the IP address then do arp -a do you see the IP address in
the returned list?

If you do does it have a valid mac (Physical) Address assigned?

If so can you log into the switch and show it's mac address table to see
on which port that the switch believes those mac address exist?

You didn't say so I'm assuming your Power System has just the base
Ethernet adapter with ports T5 and T6. The LAN console and the IBM i IP
stack are independent AND each uses one of the two ports. Because of
this it's exceptionally unlikely this is an IP problem. Also unlikely to
be a cable problem at least from the switch to the server since there
are two of 'em.

Could be the switch itself and that is my #1 suspect.

Could also be the Ethernet adapter in your Server. Bad news if this is
the case is that it's on the planar board so replacement means the
entire board. Good news is you can abandon those ports and add a 5706
card and use that instead.

Once you do get back into the machine again record the MAC addresses for
the card's two ports for future troubleshooting.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 1/3/2014 11:40 PM, Bradley Stone wrote:

Well, it's back down again. It was up working for a while, now the

same

thing. Can't ping any IP interface, not even the LAN console.

I guess I'll look into it more over the weekend. The governor shut

down

school on Monday so I'll have my wife and kids to help too (*cough*).

:)

Brad

On Fri, Jan 3, 2014 at 10:30 PM, Bdietz400 <bdietz400@xxxxxxxxx>

wrote:

Not being able to ping the LAN console address leads me to think

something

else happened to the system(not a tcpip issue). The LAN console tcpip
stack is in the lic where the "regular" tcpip is in the OS.

Check your logs to find the real cause of the outage.

--
Bryan

On Jan 3, 2014, at 10:55 PM, Bradley Stone <bvstone@xxxxxxxxx>

wrote:

I have a monitoring service that tells me when my web site is up or

down.

It's hosted on my i (now to be called AS/400 from now on) 515 running

V5R4

at my office.

Tonight I got an email saying it was down. Cool, it works. Not cool,

my

site was actually down.

I got on the LAN that the AS/400 is on. Couldn't ping any IP

interfaces

on

it. Not even the LAN console IP address.

I ended up doing a "manual IPL" and things were fine after that.

But that leads me to ask... if even my LAN console IP was down, how

the

heck am I supposed to be able to get onto the machine to see what is

going

on? I was quite troubled and now have a bald spot on the side of my

head

where I was scratching it. :)

Thanks for any info... after this, I'd actually like to be able to

set

up

a dedicated PC to be a console, preferably not over IP. If that's
possible, I'm all ears as I have multiple old laptops I could use for
consoles. :)
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