LoadMaster High Availability (HA) on the VCE Vblock Platform

It is possible to configure a LoadMaster High Availability (HA) cluster on a VCE Vblock Platform.

In order to do this, some small configuration changes are required at switch level and at virtual switch level. Further details are provided on this below.

Virtual LoadMasters (VLMs) on the same host:
If you are running both VLMs in HA mode on the same VMware host, please ensure the following settings are configured on the VMware switch:

  • MAC address changes: accept
  • Forged Transmits: accept

VLMs on different hosts:
If both VLMs are on different hosts, the changes (as outlined in the previous section) still need to be made, in addition to making changes to the physical switches connecting both hosts:

  • IGMP snooping must be disabled and Port fast must be enabled

On Cisco Nexus 1000v you should make the following changes in order to get the Loop detection feature disabled (this is enabled by default):


If there are other devices that are using the VRRP protocol on your network, ensure that the HA Virtual ID is set to a random value between 1 and 250 on both devices (the HA ID have to match on both pair devices).


Note: KEMP recommends keeping the HA checks over the eth0 interface in order to avoid communication problems between the two VLMs. It is also recommended to enable HA Checks on an additional interface.

To enable the Use for HA checks option, follow the steps below:

  1. Go to the Web User Interface (WUI) of the shared IP address.
  2. In the main menu, go to System Configuration > Network Setup.
  3. Click the relevant interface.
  4. Tick the Use for HA checks check box.

Please refer to the following article for general Hints and Tips regarding using HA mode with the KEMP LoadMaster:


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