Mick wrote: > We have 3 control domains with 4 or 5 guest ldoms each all running solaris > 10u7 fully patched to the recommended level. All ldoms are built from the > same template. 2 of the ldoms seem to have issues with 2 Dell boxes running > broadcom suite teamed nics. The Dell boxes are running web front ends for > oracle databases running on the ldoms. Every 10 - 30 secs the web front ends > lose connection. Running an arp -a on the ldoms show that the mac addresses > for the dell boxes keep changing. To further complicate things the problem > only exists between each pair ldom1 to dell1 and ldom2 to dell2. Running test > from any other hosts to or from the dell boxes or the ldoms shows 100% > connection. > I can't think of a reason to suspect that this is ldoms networking issue, at least we haven't see any such cases. Its possible something related to your network. I suggest monitor the ARP traffic by snooping for the ARP packets in these two guest domains(ldom1, ldom2) and see whats happening. That is:
# snoop -o <outputfile> arp If needed add the -d <vnetX> to specify the interface. To examine the output: # snoop -i <outputfile> Also examine the mac-addresses that are changing and see if they are valid mac-addresses assigned to other systems and see why the could showing up like that. > I have shutdown the oracle databases and the web front ends and the issue > still exists. i have tried setting the mac address in the ethers table to no > avail. arp -a still shows a changed mac address when pinged from the dell > boxes. > Not sure if you meant that you tried adding static ARP entries, I would suggest specifically using the "arp -s" command to add the static ARP entries. -raghuram.
