Specifications

2-2
Cisco Internet Streamer CDS 2.0-2.3 Software Configuration Guide
OL-13493-04
Chapter 2 Network Design
Cisco CDS Topology
Figure 2-1 Location Trees Example
The Location Trees define preferred distribution routes. The Tier 1 locations are located closest to the
Internet or backbone. Tier 1 locations can communicate with all other Tier 1 locations.
Note The CDS does not support network address translation (NAT) configuration, where one or more CDEs
are behind the NAT device or firewall. The workaround for this, if your CDS network is behind a firewall,
is to configure each internal and external IP address pair with the same IP address.
The CDS does support clients that are behind a NAT device or firewall that have shared external IP
addresses. In other words, there could be a firewall between the CDS network and the client device.
However, the NAT device or firewall must support RTP/RTSP.
Device Groups
Device groups offer a way to group similar devices and configure all the devices in a group at one time.
Service Engines can be assigned to multiple device groups when the Device Group Overlap feature is
enabled.
A device in a device group can have individual settings different from other devices in the group, and its
settings can revert back to the group settings. The last configuration submitted for the device, whether
group or individual, is the configuration the device uses.
In addition to group configuration and assignment, the CDSM allows the following:
• Hiding configuration pages of a device group
• Adding all newly activated devices to a device group
• Forcing device group settings onto all devices assigned to a group
A device can be assigned to a device group in one of two ways:
1. From the Device Assignment page
2. From the Device Group Assignment page
211812
San Francisco - Financial
South San Francisco
San MateoDaly City
San Francisco - Mission Walnut CreekPleasant Hill
San Francisco -
Bay View District
San Ramon
Concord
Tier 1
Tier 2
Tier 3
Tier 4
Half Moon Bay