About Omneon MediaGrid - Harmonic Inc

System Installation with ContentServer 1000 and 2000 Series
Public VLAN
Before installing your MediaGrid system, you must allocate an IP address range for the MediaGrid
Public VLAN. The Public VLAN is an IP subnet, which will be visible by all parts of the network that
access the MediaGrid. Make sure the Public VLAN is dedicated to MediaGrid components, and
accessible by clients that will access the MediaGrid. See Figure 22 for an example.
IMPORTANT: You must allocate a dedicated IP address range for your MediaGrid Public VLAN, advertise it
to all routers on your network, and know this range before configuring your MediaGrid system or switches.
IMPORTANT: The Public VLAN should include MediaGrid devices ONLY. Adding non-MediaGrid devices to
the Public VLAN may cause unpredictable problems with the MediaGrid system.
Private VLANs
Before installing your MediaGrid system, you must also allocate IP address ranges for two Private
VLANs. The Private VLANs are private IP subnets that create redundant paths between the
ContentDirectors, allowing them to communicate information and keeping them synchronized. Make
sure each Private VLAN is accessible by both ContentDirectors, and isolated from the other Private
VLAN. See Figure 22 for an example.
54 Installation and Configuration Guide