Symantec 5 manual Setting up the private network, You can use network switches instead of hubs

40Preparing to install VCS Performing preinstallation tasks

You can only install the Symantec software products for which you have purchased a license. The enclosed software discs might include other products for which you have not purchased a license.

Setting up the private network

VCS requires you to set up a private network between the systems that form a cluster. You can use either NICs or aggregated interfaces to set up private network.

You can use network switches instead of hubs.

Refer to the Veritas Cluster Server Administrator's Guide to review VCS performance considerations.

Figure 3-2shows two private networks for use with VCS.

Figure 3-2 Private network setups: two-node and four-node clusters

Public network

Public network

Private network

Private network switches or hubs

Symantec recommends configuring two independent networks between the cluster nodes with a network switch for each network. You can also connect the two switches at layer 2 for advanced failure protection. Such connections for LLT at layer 2 are called cross-links.

Figure 3-3shows a private network configuration with crossed links between the network switches.