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11-9
Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5
78-18133-01
Chapter 11 Configuring Quality of Service on the ML-Series Card
QoS on RPR
the QinQ network, the QoS is then implemented based on the IEEE 802.1p bit of the SP tag. The
ML-Series cards do not have visibility into the customer CoS, IP precedence, or DSCP values after the
packet is double-tagged (because it is beyond the entry point of the QinQ service).
Figure 11-6 illustrates the QinQ implementation on the ML-Series card.
Figure 11-6 QinQ Implementation on the ML-Series Card
The ML-Series cards can be used as the IEEE 802.1Q tunneling device for the QinQ network and also
provide the option to copy the customer frame’s CoS bit into the CoS bit of the added QinQ tag. This
allows the service provider QinQ network to be fully aware of the necessary QoS treatment for each
individual customer frame.
Flow Control Pause and QoS
When flow control and policy-map are both enabled for an interface and the policy-map is configured
only with 'class-default' having policer action, flow control handles the bandwidth. If the policer gets
noncompliant flow, then it drops or demarks the packets using the policer definition of the interface.
Note QoS and policing are not supported on the ML-Series card interface when link aggregation is used.
Note Egress shaping is not supported on the ML-Series cards.
QoS on RPR
For VLAN bridging over RPR, all ML-Series cards on the ring must be configured with the base RPR
and RPR QoS configuration. SLA and bridging configurations are only needed at customer RPR access
points, where IEEE 802.1Q VLAN CoS is copied to the RPR CoS. This IEEE 802.1Q VLAN CoS
copying can be overwritten with a set-cos action command. The CoS commit rule applies at the RPR
ring ingress. Transit RPR ring traffic is classified on CoS only.
If the packet does not have a VLAN header, the RPR CoS for non-VLAN traffic is set using the following
rules:
1. The default CoS is 0.
96500
Destination Address6
Source Address6
Type=81002
Tag Control Information2
Type=81002
Tag Control Information2
Type/Length2
MAC DATA
PAD
42~1500
FCS4
Customer VLAN Tag
IEEE 802.1Q Tag
VLAN ID
CFICoS
IEEE 802.1p
(3 bits)
Service Provider Tag
QinQ Tag
VLAN ID
CFICoS
SP CoS bit
(3 bits)