hpvmnet no traffic VMhost to VMguest

[Steve Lewis]

I have 5 VM guests which we created and network ignited happily. Host and guests ll HP-UX 11.23, IVM 3.0, patched to June 2007 bundle.
The 6th VM guest will not boot, it says valid PXE offer not received. The VM guest is booted, sitting at EFI prompt.

I checked linkloop connectivity from VM host to VM guest: _no traffic_

linkloop -i 1 0x767CF4807AC8
Link connectivity to LAN station: 0x767CF4807AC8
error: get_msg2 getmsg failed, errno = 4
-- FAILED
frames sent : 1
frames received correctly : 0
reads that timed out : 1

errno 4 is interrupted system call.


I can linkloop other VM guests like this:
linkloop -i 1 0xc6612bfb1959
Link connectivity to LAN station: 0xc6612bfb1959
-- OK

Here is the hpvmnet
hpvmnet
Name Number State Mode NamePPA MAC Address IP Address
======== ====== ======= ========= ======== ============== ===============
localnet 1 Up Shared N/A N/A
switch1 2 Up Shared lan1 0x001a4b0ac219 15.225.50.2
switch2 3 Up Shared lan2 0x001a4b0ab2a8 15.225.52.2
switch0 4 Up Shared lan0 0x001a4b0ac218 15.225.51.2


Here is the hpvmstatus of the guest. Only one interface configured for Ignite purposes:

[Network Interface Details]
Interface Adaptor Name/Num PortNum Bus Dev Ftn Mac Address
========= ========== ========== ======= === === === =================
vswitch lan switch1 6 0 0 0 76-7c-f4-80-7a-c8

I cannot bounce the VM net or the VM host at present due to large numbers of users logged into the other 5 VMs. I did try bouncing the VM guest. I also tried deleting the VMnet on switch1, then trying a replacement one.

The bootp server is a different server to my VM host, connectivity over this lan is fine from vmhost to bootp server. I can ping, ssh, bootpquery from the VM host and get a reply. Therefore its not the cabling, its not routing, or tcp/ip, I can also linkloop to the dhcp server because its the same segment on the same switch. Bootpquery shows only one reply for the VM host, but nothing to the guest (bootpquery only responds to the lanid that sent the request).
I have triple-checked the mac address of the VM guest in the bootptab and done an inetd -c on the bootpserver, no help.
I also checked for other bootp servers on the same subnet on different partitions, but all seems clear. Any ideas?

[melvyn burnard]

have you used hpvmnet to verify/check the vswitch port statuses?

[Steve Lewis]

Good idea, I checked it with hpvmnet -p all -S switch1 and everything is Active.

I have just discovered that I can bounce the vswitch while the guests are up, so I may do this later this evening when the traffic is quieter.


Until then, any other ideas?