VIF.get_network not found

No vif: interfaces after start of xend, consequently no working network configuration starting DomU.
I suspect a missing dependency in a python module(?)

[2007-11-20 19:44:03 4772] DEBUG (__init__:1094) SrvServer.cleanup()
[2007-11-20 19:44:03 4772] DEBUG (__init__:1094) XMLRPCServer.cleanup()
[2007-11-20 19:44:03 4772] DEBUG (__init__:1094) XMLRPCServer.cleanup()
[2007-11-20 19:44:03 4772] DEBUG (__init__:1094) cleanup_domains
[2007-11-20 19:44:03 4832] INFO (__init__:1094) Xend Daemon started
[2007-11-20 19:44:03 4771] INFO (__init__:1094) Xend exited with status 0.
[2007-11-20 19:44:03 4832] INFO (__init__:1094) Xend changeset: unavailable.
[2007-11-20 19:44:03 4832] INFO (__init__:1094) Xend version: Unknown.
[2007-11-20 19:44:03 4832] DEBUG (__init__:1094) XendDomainInfo.recreate({'max_vcpu_id': 1, 'cpu_time': 38043521707L, 'ssidref': 0, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0, 'online_vcpus': 2, 'domid': 0, 'paused': 0, 'crashed': 0, 'running': 1, 'maxmem_kb': 4294967292L, 'shutdown': 0, 'mem_kb': 1910400L, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], 'blocked': 0, 'name': 'Domain-0'})
[2007-11-20 19:44:03 4832] INFO (__init__:1094) Recreating domain 0, UUID 00000000-0000-0000-0000-000000000000. at /local/domain/0
[2007-11-20 19:44:03 4832] DEBUG (__init__:1094) Adding Domain: 0
[2007-11-20 19:44:03 4832] DEBUG (__init__:1094) number of vcpus to use is 0
[2007-11-20 19:44:03 4832] DEBUG (__init__:1094) Storing domain details: {'name': 'Domain-0', 'console/limit': '1048576', 'memory/target': '1910400', 'vm': '/vm/00000000-0000-0000-0000-000000000000', 'domid': '0', 'cpu/0/availability': 'online', 'cpu/1/availability': 'online', 'control/platform-feature-multiprocessor-suspend': '1'}
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VBD.set_device not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VBD.set_mode not found
[2007-11-20 19:44:03 4832] DEBUG (__init__:1094) XendDomainInfo.handleShutdownWatch
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VBD.set_type not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VM.get_auto_power_on not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VM.set_auto_power_on not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VM.set_VCPUs_max not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VM.set_VCPUs_at_startup not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: debug.get_all not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: console.get_other_config not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: console.set_other_config not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VIF.get_network not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VIF.set_device not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VIF.set_MAC not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: VIF.set_MTU not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: session.get_all_records not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: event.get_record not found
[2007-11-20 19:44:03 4832] WARNING (__init__:1094) API call: event.get_all not found
[2007-11-20 19:44:03 4832] INFO (__init__:1094) Opening Unix domain socket XML-RPC server on /var/run/xend/xen-api.sock; authentication has been disabled for this server.
[2007-11-20 19:44:03 4832] INFO (__init__:1094) Opening Unix domain socket XML-RPC server on /var/run/xend/xmlrpc.sock.

selective package list: dpkg --list | egrep -i "xen|kernel"

ii kerneltop 0.8-2 shows linux kernel function usage in a style
ii klogd 1.4.1-21ubuntu3 Kernel Logging Daemon
ii libc6-xen 2.6.1-1ubuntu10 GNU C Library: Shared libraries [Xen version
ii libdevmapper1.02.1 2:1.02.20-1ubuntu4 The Linux Kernel Device Mapper userspace lib
ii libxen3.1 3.1.0-0ubuntu18 library interface for Xen, a Virtual Machine
ii libxen3.1-dev 3.1.0-0ubuntu18 headers for Xen, a Virtual Machine Monitor
ii linux-image-2.6.22-14-server 2.6.22-14.46 Linux kernel image for version 2.6.22 on x86
ii linux-image-2.6.22-14-xen 2.6.22-14.46 Linux kernel image for version 2.6.22 on Thi
ii linux-image-server 2.6.22.14.21 Linux kernel image on Server Equipment.
ii linux-image-xen 2.6.22.14.21 Linux kernel image on Xen
ii linux-libc-dev 2.6.22-14.46 Linux Kernel Headers for development
ii linux-restricted-modules-2.6.22-14-xen 2.6.22.4-14.10 Non-free Linux 2.6.22 modules on Xen
ii linux-restricted-modules-xen 2.6.22.14.21 Restricted Linux modules on Xen
ii linux-server 2.6.22.14.21 Complete Linux kernel on Server Equipment.
ii linux-ubuntu-modules-2.6.22-14-xen 2.6.22-14.37 Ubuntu supplied Linux modules for version 2.
ii linux-xen 2.6.22.14.21 Complete Linux kernel on Xen
ii module-init-tools 3.3-pre4-2ubuntu4 tools for managing Linux kernel modules
ii nvidia-kernel-common 20051028+1ubuntu7 NVIDIA binary kernel module common files
ii python-xen-3.1 3.1.0-0ubuntu18 python bindings for Xen, a Virtual Machine M
ii ubuntu-xen-server 0.0.1-2ubuntu4 Xen software for running on servers
ii udev 113-0ubuntu16 rule-based device node and kernel event mana
ii xen-docs-3.1 3.1.0-0ubuntu18 documentation for XEN, a Virtual Machine Mon
ii xen-hypervisor-3.1 3.1.0-0ubuntu18 The Xen Hypervisor for i386, amd64 amd lpia
ii xen-image-2.6.19-4-generic 2.6.19-2ubuntu7 Linux 2.6.19 image on PPro/Celeron/PII/PIII/
ii xen-ioemu-3.1 3.1.0-0ubuntu18 XEN administrative tools
ii xen-shell 1.2-1 Console based Xen administration utility
ii xen-tools 3.5-1ubuntu2 Tools to manage debian XEN virtual servers
ii xen-utils-3.1 3.1.0-0ubuntu18 XEN administrative tools