Trying to communicate with an Brocade SMI-S Agent

Hi
Im trying to communicate with an Brocade SMI-S Agent.
For that I wrote a small clientsoftware which sends CIM-XML conform
requests like this:

POST / HTTP/1.1
Authorization: Basic aWFrYWxiZXI6c2ltcHNvbnM=
User-Agent: curl/7.17.1 (sparc-sun-solaris2.10) libcurl/7.17.1 OpenSSL/
0.9.8g zlib/1.1.4
Host: 10.31.254.5:5986
Accept: */*
Content-Type: text/xml
Man: http://www.dmtf.org/cim/mapping/http/v1.0 ; ns=73
73-CIMOperation: MethodCall
73-CIMMethod: EnumerateInstances
73-CIMObject: root/cimv2
Content-Length: 483

?xml version=1.0 encoding=utf-8?
CIM CIMVERSION=2.0 DTDVERSION=2.0
MESSAGE ID=87872 PROTOCOLVERSION=1.0SIMPLEREQ
IMETHODCALL NAME=EnumerateInstances
LOCALNAMESPACEPATH
NAMESPACE NAME=root/NAMESPACE NAME=cimv2/
/LOCALNAMESPACEPATH
IPARAMVALUE NAME=ClassNameCLASSNAME NAME=Brocade_Zone/
/IPARAMVALUE
IPARAMVALUE NAME=LocalOnlyVALUETRUE/VALUE/IPARAMVALUE
IPARAMVALUE NAME=DeepInheritanceVALUETRUE/VALUE/IPARAMVALUE
/IMETHODCALL/SIMPLEREQ/MESSAGE/CIM

I send these messages with curl. The problem ist that these requests
dont work. It gets always an http 500 Internal Server Error, Error
Parsing XML. Whatever I send (also empty requests) I get the same
error.
But its a reply of the cimom because of the an Header "CIMOperation:
MethodResponse" in the reply.

Has someone some experience with that? I couldnt find any proper
documentation about that from Brocade. I follow the specification of
the DMTF but it looks like that is not enough.... May be it exists
open clientsoftware which I could use to look how the communication
exactly works?

?xml version=1.0 encoding=utf-8?
CIM CIMVERSION=2.0 DTDVERSION=2.0
MESSAGE ID=87872 PROTOCOLVERSION=1.0SIMPLEREQ
IMETHODCALL NAME=EnumerateInstances
LOCALNAMESPACEPATH
NAMESPACE NAME=root/NAMESPACE NAME=cimv2/
/LOCALNAMESPACEPATH
IPARAMVALUE NAME=ClassNameCLASSNAME NAME=Brocade_Zone/
/IPARAMVALUE
IPARAMVALUE NAME=LocalOnlyVALUETRUE/VALUE/IPARAMVALUE
IPARAMVALUE NAME=DeepInheritanceVALUETRUE/VALUE/IPARAMVALUE
/IMETHODCALL/SIMPLEREQ/MESSAGE/CIM


You need to wrap your attribute values in double quotes for this to be
well-formed XML

?xml version="1.0" encoding="utf-8"?
CIM CIMVERSION="2.0" DTDVERSION="2.0"
..
..
..
etc