iControl add RouteDomain

I have a question for you.

My BIG-IP Version: BIG-IP 10.0.1 Build 354.0 Hotfix HF2

I want to add RouteDomain with iControl

I use this python code.

---

url = 'https://admin:%s@bigip/iControl/iControlPortal.cgi' %( Pwd )

def routedomain_add(url):

db_proxy = SOAPpy.SOAPProxy(url, "urn:iControl:Networking/RouteDomain")

result = db_proxy.create(route_domains=["222"],

vlans=["testsave_vlan"])

print "Route Domains Finish"

---

This code result:

SOAPpy.Types.faultType: Fault SOAP-ENV:Client: Unknown method "{urn:iControl:Networking/RouteDomain}:create"

But, BIG-IP 10.1.0 Build 3341.1084 Final version.

My RouteDomain add code great working!

Why do not work my code on v10.0.1?

Thank you.