Cisco ONS 15454 SDH - Case 2: Qos with Priority and Bandwidth Configured with Priority Multicast

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Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Chapter 14 Configuring Quality of Service
Case 2: QoS with Priority and Bandwidth Configured with Priority Multicast
For example, if 18x bandwidth is available after servicing priority unicast traffic (CoS 5), then the
remaining bandwidth will be allocated as follows:
Unicast traffic with CoS 2 : 2x
Unicast traffic with CoS 7: 6x
Unicast default (without CoS 2, CoS 5, CoS 7): 9x
All multicast/broadcast (any CoS value): 1x
Example 14-17 QoS with Priority and Bandwidth Configured without Priority Multicast
!
class-map match-all customer_voice
match cos 5
class-map match-all customer_data
match cos 7
class-map match-all customer_core_traffic
match cos 2
!
!
policy-map policy_egress_bandwidth
class customer_core_traffic
bandwidth 1000
class customer_voice
priority 1000
class customer_data
bandwidth 3000
class class-default
bandwidth 5000
!
!
interface POS0
no ip address
crc 32
service-policy output policy_egress_bandwidth
!
Case 2: QoS with Priority and Bandwidth Configured with Priority Multicast
In this case, only multicast traffic of CoS 3 is allocated a guaranteed bandwidth. This multicast traffic
will now participate in the queue along with other WRR queues. After servicing the customer_voice
traffic, the remaining interface bandwidth is utilized for WRR queues, such as customer_core_traffic,
customer_data, class-default, and multicast CoS 3 traffic in the ratio of 1:3:5:2.
At any given time, the sum of the bandwidth assigned cannot exceed the interface bandwidth (in kbps).
Example 14-18 QoS with Priority and Bandwidth configured with Priority Multicast
cos priority-mcast 3 2000
!
class-map match-all customer_voice
match cos 5
class-map match-all customer_data
match cos 7
class-map match-all customer_core_traffic
match cos 2
!
!