Error: Connectivity issues, discarding configuration (or configuration is too short)

erik.boyer

So to preface this I have already read both of these threads:

Connectivity issues, discarding configuration (or configuration is too short) NCM 7.1

Connectivity issues, discarding configuration (or configuration is too short)

I have modified a Cisco WLC device template and enabled session trace. NCM successfully connects to the node and performs the required commands and receives the output I expect according to the trace, however NCM never accepts the output and instead always gives the error listed as the subject of this discussion - Connectivity issues, discarding configuration (or configuration is too short).

Does anyone have any thoughts on why this would be happening?

Here is the line I changed in the device template:

WAS:

<Command Name="DownloadConfig" Value="show run-config"/>

NOW:

<Command Name="DownloadConfig" Value="config paging disable${CRLF}show run-config commands"/>

Here is output from the session trace:

[10/22/2014 12:03:19 PM] Start check prompt for menu-based device

[10/22/2014 12:03:19 PM] Process Line = <(Cisco Controller) >>

[10/22/2014 12:03:19 PM] Fuzzy match detector start detecting prompt. String1=(ciscocontroller)> String2=(ciscocontroller)>

[10/22/2014 12:03:19 PM] <-- show run-config commands

[10/22/2014 12:03:19 PM] Process Line = <>

[10/22/2014 12:03:19 PM] --->s

[10/22/2014 12:03:19 PM] Receive Event: Pre-Commands found, start check for RegEx if any

[10/22/2014 12:03:19 PM] Start check prompt for menu-based device

[10/22/2014 12:03:19 PM] Process Line = <s>

[10/22/2014 12:03:19 PM] Fuzzy match detector start detecting prompt. String1=s String2=(ciscocontroller)>

[10/22/2014 12:03:19 PM] Pushing back: <s>

[10/22/2014 12:03:19 PM] mPrompt is : <(Cisco Controller) >>

[10/22/2014 12:03:19 PM] --> how run-config commands

[10/22/2014 12:03:19 PM] -->  802.11a 11nSupport a-mpdu tx scheduler enable

[10/22/2014 12:03:19 PM] -->

[10/22/2014 12:03:19 PM] -->  802.11a 11nSupport a-mpdu tx scheduler timeout rt 10

<<Output Omitted>>

[10/22/2014 12:03:26 PM] Fuzzy match detector start detecting prompt. String1=(ciscocontroller)>? String2=(ciscocontroller)>

[10/22/2014 12:03:26 PM] SendNextCommand Done: Disconnecting

cvachovecj

Sorry, I've read your post more carefully the second time.

Not sure if this is the source of the problem, but the command to disable pagination should go to the Reset command. I.e. in your case

<Command Name="Reset" Value="config paging disable"/>

<Command Name="DownloadConfig" Value="show run-config commands"/>

This is exactly like here: Cisco Wireless LAN controllers and Cisco WISMs. This template has been validated by many customers. Maybe you could try it. If it doesn't work then you should probably open a support case.

Regards,

Jiri