We have 2 pools with 4 active physical hosts in each. The physical hosts are all identical with the following specs:
Dell Poweredge R630
2st Intel Xeon E5-2630 v3 @ 2.40GHz
Intel E350 Quadport -Port 1 & 2 are in a LACP where mgmt is used on the native VLAN. Then the VM networks are added as VLAN's ontop of that LACP. The LACP configuration used is LACP Active/Active where the mode is "LACP with load balancing based on IP and port of source and destionation".
Port 3 & 4 are used for storage - iSCSI with multipathing enabled against 2st Nexentastor machines.
The latest firmware pack has been installed on all hosts as well.
All servers are running XenServer 6.5 SP1 with all hotfixes applied.
The switches are 4st Juniper EX3300 in a stack of 2 switches each.
Now to the problem, which is really weird:
When doing a live migration of a VM running Debian Linux or Windows Server 2008 R2 the VM is fine afterwards. Even migrating Windows Server 2012 R2 works fine in almost all cases.
But when migrating a VM running Windows Server 2012 R2 which is acting as a remote desktop gateway (RDS Gateway) with the Windows Network Load balancer the VM looses network connectivity after being migrated within the pool.
To resolve it I simply have to go to the console, login and ping the default gateway and it is all good again.
My guess is that this is some what related to the Windows Network Load balancer but I am not really sure, I am out of luck and this is my last resort even tho I dont think this is XenServers fault at all :-)
So any suggestions are appreciated!
Edited by Niklas Åhden, 21 April 2017 - 12:56 PM.