HP-UX vPars and Integrity VM V6.3 Administrator Guide

NOTE: The Cisco switch for HP BladeSystem c-Class Server Blades has a protocol error that
causes it to respond to every MAC address. Because MAC addresses are unique, Integrity VM
verifies that the generated guest virtual MAC address is unique. If one of these bad switches is on
your network, the Integrity VM verification fails.
The hpvmcreate command might fail with the following messages:
hpvmcreate: WARNING (host): Failed after 3 attempts.
hpvmcreate: WARNING (host): Unable to create Ethernet MAC Address.
Similarly, the hpvmstart command might fail with the following messages:
# hpvmstart -P vm2
HPVM guest vm2 configuration problems:
Warning 1 on itme nic1: Guest MAC address for switch nic1 is in use.
Cisco Systems, Inc. released a fix for the Cisco Catalyst Blade Switch 3020 in December 2006,
which is available from the Cisco Systems website:
http://cco.cisco.com
NOTE: This link will take you outside the Hewlett-Packard website. HP does not control and is
not responsible for information outside of HP.com.
The fix is also available from the HP website:
http://www.hp.com
From the HP website, select Software & Driver downloads and search for switch cisco 3020. The
minimum required firmware version is 12.2(35) SE.
8.2.1.1.1 Local networks
Virtual network communication might be limited to VMs on the VSP system through the use of
vswitches that are not connected to a physical NIC. A virtual network such as this is called a local
virtual network or a local network (localnet). To create a local network, a vswitch must first be
created using the hpvmnet command without the -n option, so that it is not connected to the
physical network. For example, to create a local network vswitch named clan0, and to start it,
enter the following commands:
# hpvmnet -c -S clan0
# hpvmnet -b -S clan0
All vNICs connected to that vswitch will then be on the same local network. The VSP does not
communicate on local networks.
The following command adds a vNIC to the guest host1, which can be used to communicate
with any VM connected to the localnet vswitch.
# hpvmmodify -P host1 -a network:avio_lan::vswitch:clan0
During startup of the Integrity VM software, a default vswitch, localnet, is created and booted. The
localnet vswitch can be added to a guest, which allows communication with any other guest using
the localnet vswitch. For example,
# hpvmmodify -P compass1 -a network:avio_lan::vswitch:localnet
8.2.1.2 Changing vswitches
You can use the -C option to change the pNIC, which the guest uses. For example, enter the
nwmgr command as follows:
# nwmgr
Name/ Interface Station Sub- Interface Related
ClassInstance State Address system Type Interface
============== ========= ============== ======== ============== =========
lan0 UP 0x00306E4A93E6 iexgbe 10GBASE-KR
8.2 Creating virtual networks 115