Virtual Server Networking | 51
If connectivity to a hypervisor is lost after information is retrieved and used to
reconfigure a switch, the following log message is displayed. The VSN agent tries to
connect to the hypervisor in the background. The information that was retrieved from
the hypervisor is not deleted.
Message 4
Xen-Citrix:Lost connection to hypervisor xen217. Retrying...
Afterwards, one of the following actions is performed:
• If connectivity with the hypervisor is re-established within three minutes after the
loss of connectivity, the following log message is displayed and the retrieved
information is retained:
Message 5
Xen-Citrix:Reestablished connection with hypervisor xen217.
• If connectivity with the hypervisor is not re-established within three minutes after
the loss of connectivity, the following log message is displayed. The information
retrieved from the hypervisor is deleted and the VLANs from the hypervisor are
unconfigured:
Message 6
Xen-Citrix:Lost connection to hypervisor xen217. Removing learnt
information.
Running VSN Scripts
The VSN package contains the SDKs for VMware and Citrix Xen hypervisors. The
Perl and Python scripts required for VSN functionality are stored with the VSN 2.0.x
package in the
/usr/pkg/scripts/VSNAgent directory as follows:
• For VMware hypervisors, the Perl script is stored is at
/usr/pkg/scripts/
VSNAgent/VMWare/
VSNAgent.pl.
• For Citrix Xen hypervisors, the Python script is stored is at /usr/pkg/scripts/
VSNAgent/Xen/hpAgtMain.py
Caution: The Dell Open Automation Virtual Server Networking™ software package (the
“Product”) may contain the VMware SDK for Perl, which is licensed by VMware, Inc.
VMware will not provide technical support for the VMware SDK included in the Product.
Users interested in writing scripts for VMware products must obtain the VMware SDK
directly from VMware. You may not create scripts for VMware products through use of the
VMware SDK included in the Virtual Server Networking package. End Users may use the
Dell Virtual Server Networking according to the terms, conditions, and limitation of the
pertinent Dell End User License Agreement only.
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