Cisco 15327 - Manual (Page 234)

14-26
Ethernet Card Software Feature and Configuration Guide, R7.2
Chapter 14 Configuring Quality of Service
Configuring Multicast Priority Queuing QoS
Table 14-5 CoS Multicast Priority Queuing Command
Command Purpose
Router (config)# [no] cos priority-mcast cos-value
{ bandwidth-kbps | mbps bandwidth-mbps | percent
percent}
Creates a priority class of multicast traffic based on a multicast
CoS value and specifies a minimum bandwidth guarantee to a
traffic class in periods of congestion.
cos-value specifies the CoS value of multicast packets that will
be given the bandwidth allocation. The value matches only a
single CoS of traffic (not a range). The supported CoS range is
0 to 7.
A minimum bandwidth guarantee can be specified in kbps, in
Mbps, or by a percentage of the overall available bandwidth.
Valid choices for the ML-Series card are:
• Rate in kilobits per second
• Rate in megabits per second
• Percent of total available port bandwidth (1 to 100)
Reentering the command with the same cos-value but a
different bandwidth rate will modify the bandwidth of the
existing class.
Reentering the command with a different cos-value creates a
separate multicast priority queuing class with a maximum of
two multicast priority queuing classes.
The no form of this command removes the multicast priority
queuing class.
Note The true configurable bandwidth in kilobits or megabits
per second is per port and depends on how the
ML-Series card is configured. The show interface
command shows the maximum bandwidth of a port (for
example, BW 100000 Kbit). The sum of all bandwidth
and priority actions applied to the interface, plus the cos
priority-mcast bandwidth, is not allowed to exceed the
maximum bandwidth of the port.
Note Attempting to configure a priority-mcast bandwidth
that exceeds the true configurable bandwidth on any
port will cause the priority-mcast configuration change
to fail, and the multicast priority queuing bandwidth
guarantee will not be changed.