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B.5 quality of service (qos) – Comtech EF Data CMR-5910 Manual User Manual

Page 73

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Digicast Media Router Serial IP (SIP): CMR-5910 (MG-SIP) & CMR-5920 (MR-SIP)

Revision A

IP Routing Support

MN/MDRTRIPDC.IOM

An example of multicast zone is as follows:


Multicast Route = 239.0.10.1

Multicast Zone Mask = 255.255.255.252

Multicast groups mapped to the 239.0.10.1 route:

239.0.10.1

239.0.10.2

239.0.10.3

239.0.10.4

B.5

Quality of Service (QoS)

Each route defined can be configured to provide a determined bandwidth. Note all QoS
rates are for the HDLC transport stream and are based on HDLC payloads. Therefore, IP
data rates may be slightly less due to the protocol overhead of HDLC. The bandwidth
attributes that may be set are as follows:

Minimum: The guaranteed amount of bandwidth the MG will provide for this
route. The total number of routes with guaranteed bandwidth must always be less
than the rate of the egress port.

Maximum: The maximum amount of bandwidth a route will be allowed to have.
Once the traffic for this route exceeds this level, packets will be silently discarded
to ensure that the maximum is not exceeded

No Setting: If neither the Guaranteed nor the Maximum values are set, the route
will be allowed to use as much bandwidth as possible and possibly attempt to
exceed the egress bandwidth, which will result in lost data. Conversely, there is
not guaranteed bandwidth for the route – another route may utilize all available
bandwidth.













B-3

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