Specifications

4-6
Cisco TV CDS 2.5 ISA Software Configuration Guide
OL-24788-01
Chapter 4 Configuring the CDS
System Level Configuration
Figure 4-1 QAM Gateway Example
To configure the example shown in Figure 4-1, you would enter the information listed in Table 4-3.
Note In ASI streaming, the Streamers perform the session and resource bandwidth management. In gigabit
Ethernet streaming, the Session and Resource Manager (SRM) performs the bandwidth management.
An exception is when ASI streaming mode is configured (see the “Configuring the Streamer for BMS
Connectivity” section on page 4-45) and a GQAM Shared is specified as the QAM gateway. In this case
the SRM controls the bandwidth management for the GQAM Shared, while the Streamers control the
bandwidth for all other QAM types.
To view the current configuration for a QAM gateway, choose Configure > System Level > QAM
Gateway, choose the QAM IP address from the drop-down list, and click Next.
Note You must first configure the Streaming mode and Stream Groups before you can configure the QAM
Gateway page. For more information, see the “Configuring the Streamer for BMS Connectivity” section
on page 4-45 and the “Configuring Stream Groups” section on page 4-58.
203095
Layer 3 Device as QAM Gateway
Layer 3 Device2
MAC Addr2
Layer 3 Device1
MAC Addr1
GQAM Device1
172.31.253.32
GQAM Device2
172.31.253.128
GQAM Device3
172.31.253.192
Streamer 3
10.156.24.43
Streamer 2
10.156.24.42
Streamer 1
10.156.24.41
Layer 2
Layer 3
Layer 3
Layer 2
Layer 3
Layer 3
Layer 3
Layer 3
Layer 2
Table 4-3 QAM Gateway Configuration Example
QAM IP Address QAM MAC Address
1
1. This setting is optional and it is recommended that you leave it blank.
QAM Type
2
2. Used in ASI streaming only.
Stream Group Preference
172.31.253.32 MAC Addr1
1
GQAM Stream Group 1 High
MAC Addr2
1
GQAM Stream Group 2 Medium
172.31.253.128 MAC Addr1
1
GQAM Stream Group 1 High
MAC Addr2
1
GQAM Stream Group 2 Medium
172.31.253.192 MAC Addr1
1
GQAM Stream Group 1 High
MAC Addr2
1
GQAM Stream Group 2 Medium