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Xyplex 1640 unresponsive to telnet (solid Card LED)

Xyplex 1640 unresponsive to telnet (solid Card LED)

Xyplex 1640 unresponsive to telnet (solid Card LED)

We have four Xyplex Terminal Servers (MaxServer 1640) all exhibiting the same problem. Some time shortly after boot - about 1 - 4 hours, the MX Server becomes unresponsive to telnets, including telnet to the virtual port (2000). Even a console into the MX Server to an autobaud port does not work. The MX Server still responds to pings.

The only way to get it out of this state is to eject the flash card. Once the flash card is ejected, the MX Server becomes accessible.

For test purposes, I have configured the MX server to only have the IP address set. No physical serial connections. Still the issue arises.

I believe there is something that is on the network that causes the MX Server to access the flash card. Once it does, it becomes unresponsive, and the Card LED remains lit.

Any insight or help would be appreciated.


RE: Xyplex 1640 unresponsive to telnet (solid Card LED)

Problem resolved.

The fix was to stop the MX Server from accessing, polling, hitting the network.  

I changed the Software Load Image and the Parameter File to only have the value of CARD and NVS respectively.  (limiting any BOOTP and TFTP services out of the MX Server).  BOOTP and TFTP are not allowed on our system.  

There are a couple of ways to accomplish this - 1) Using the RESET Switch and 2) Command Line Interface.

Verify by using:
list server loaddump characteristics

Unit prompts:

Primary Record: Enabled
Internet Load Address
Internet Load Host
Internet Load Gateway
Internet Load File None
Software: XPCSRV20
Image Load Protocols Enabled: Card
Dump Protocols Enabled: XMOP, MOP, BOOTP, RARP
Parameter Protocols Enabled: NVS

Next disabling autodiscovery of the Gateway Address:
define server internet gateway auto discovery disabled

Verified using:
show server internet characteristics
(gateway auto discovery : DISABLED
Lastly disable the check for parameter server by using:
define server parameter server check disabled

Verified using:
show server characteristics
(parameter polling is now not listed)

The last two steps really fixed our issue.




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