Specifications

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Cisco Internet Streamer CDS 2.0-2.3 Software Configuration Guide
OL-13493-04
Chapter 6 Configuring the System
Configuring System Settings
To configure Fast Detection of Offline SEs, do the following:
Step 1 Choose System > Configuration > Fast SE Offline Detection. The Configure Fast SE Offline
Detection page is displayed.
Note The Fast Detection of Offline SEs feature is in effect only when the CDSM receives the first
UDP heartbeat packet and a getUpdate request from an SE.
Step 2 Check the Enable check box to enable the CDSM to detect the offline status of SEs quickly.
Note SEs can have their software upgraded without any errors in the status being displayed in the
CDSM if you disable Fast Detection of Offline SEs.
Step 3 In the Heartbeat Rate field, specify how often, in seconds, the SEs should transmit a UDP heartbeat
packet to the CDSM.
Step 4 In the Heartbeat Fail Count field, specify the number of UDP heartbeat packets that can be dropped
during transmission from SEs to the CDSM before an SE is declared offline.
Step 5 In the Heartbeat UDP Port field, specify the CDSM port number that the SEs use to send UDP heartbeat
packets.
The Maximum Offline Detection Time field displays the product of the failed heartbeat count and
heartbeat rate, where:
Maximum Offline Detection Time = Failed heartbeat count * Heartbeat rate
If Fast Detection of Offline SEs is enabled, the CDSM detects SEs that are in network segments that do
not support UDP and uses a getUpdate request (get configuration poll) to detect offline SEs.
If the CDSM does not receive regular keep-alive communication from an SE, the CDSM displays the SE
as offline after a time period of 2 * (Heartbeat rate) * (Failed heartbeat count).
Step 6 Click Submit to save the settings.
Configuring Distribution QoS
The Distribution QoS settings allow you to configure system-wide QoS priorities for delivery service
distribution and metadata replication. The delivery service distribution priority (low, medium, or high)
is set on the definition page for each delivery service.
Note When a single URL is associated with more than one delivery service, the content is distributed only one
time to all of the Service Engines subscribed to each delivery service. When different QoS settings are
configured for different delivery services that contain the same content, the delivery service priority
setting determines which QoS settings are applied to the content distribution. The delivery service with
the higher priority dictates which QoS settings are used.
To configure system-wide QoS settings, do the following:
Step 1 Choose System > Configuration > Distribution QoS. The Distribution QoS page is displayed.