topic Re: Conversion Exception on REST Call in Network Access Control

Conversion Exception on REST Call

paul — Wed, 21 Feb 2018 00:19:49 GMT

I have an odd error when I query the guest types on my lab deployment running 2.3 patch 2.

https://10.89.80.34:9060/ers/config/guesttype

{

"ERSResponse": {

"operation": "GET-getAll-guesttype",

"messages": [

{

"type": "ERROR",

"code": "Conversion exception"

}

"link": {

"rel": "related",

"href": "https://10.89.80.34:9060/ers/config/guesttype",

"type": "application/xml"

}

I can make the same query without issue to a customer's deployment. Not sure what the conversion exception means. I can query other stuff from ISE via API (endpoints, DACLs, etc.). Does it mean I have a bad guest type of some sort?

Re: Conversion Exception on REST Call

paul — Wed, 21 Feb 2018 00:50:32 GMT

Well I guessed it was something with the guest types it didn't like. I deleted all the custom ones I created, then the query worked. Then I rebuilt the guest types I wanted and it still works.

One oddity is that the filter by name doesn't appear to work.

https://10.89.80.34:9060/ers/config/guesttype?filter=name.eq.Guest_Daily

I have a guest type called Guest_Daily that the filter doesn't work. The call just returns all the guest types.

Re: Conversion Exception on REST Call

hslai — Wed, 21 Feb 2018 01:36:09 GMT

I opened CSCvi07975 on the filter issue. Please wait for a couple of days before it externally visible.

If you get the same error again, please turn on debug on ers and check ise-psc.log and guest.log.

The API doc says,

CONVERSION_EXCEPTION

Occurs for some internal conversions and should be treated as INTERNAL_EXCEPTION