3.6.0 Matrix Server 3.6.0 Administration Guide (5697-7081, December 2007)

Chapter 6: Configure Network Interfaces 58

• Networks that discourage administrative traffic.

If Matrix Server must use a network that was configured to discourage

administrative traffic, it will fail over to a network that allows the traffic

as soon as that network becomes available to all servers in the matrix.

If multiple interface failures occur on a server and there is not another

network available for the administrative network, the server may drop

out of the matrix. The remaining servers will continue to use the existing

administrative network.

Making Network Changes

The following network changes should not be made while Matrix Server

is running. Attempting to do any of the following can adversely affect the

entire matrix. If you need to perform these actions on a particular server,

first stop Matrix Server on that server. Then make your change and restart

Matrix Server.

• Add or delete a network interface from the operating system.

• Change network properties on the Network Control Panel.

• Disable or re-enable a network interface via the Device Manager.

• Update network drivers.

• Hot-swapping of PCI cards.

Allow, Discourage, or Exclude

Administrative Traffic

By default, all network interfaces allow administrative traffic. However,

you can specify which networks you prefer to use for this traffic. For

performance reasons, we recommend that these networks be isolated

from the networks used by external clients to access the matrix.

To allow or discourage administrative traffic on a network interface,

select that network interface on the Servers window, right-click, and then

select either “Allow Admin. Traffic,” “Discourage Admin. Traffic,” or

“Exclude Admin Traffic” as appropriate. The setting is applied to all

interfaces within the same subnet on all servers of the cluster.