Nokia 7705 - 3.7.5.1 Network QoS Policies

QoS and QoS Policies
136
Quality of Service Guide
3HE 11014 AAAC TQZZA Edition: 01
• Service Ingress QoS Policies (described previously)
• Service Egress QoS Policies (described previously)
3.7.5.1 Network QoS Policies
Network QoS policies define egress QoS marking and ingress QoS classification for
traffic on network interfaces. The 7705 SAR automatically creates egress queues for
each of the forwarding classes on network interfaces.
A network QoS policy defines ingress, egress, and ring handling of QoS on the
network interface. The following functions are defined:
•ingress
− defines label switched path Experimental bit (LSP EXP) value mappings to
forwarding classes
− defines DSCP name mappings to forwarding classes
•egress
− defines forwarding class to LSP EXP and dot1p value markings
− defines forwarding class to DSCP value markings
•ring
− defines dot1p bit value mappings to queue and profile state
The required elements to be defined in a network QoS policy are:
• a unique network QoS policy ID
• egress forwarding class to LSP EXP value mappings for each forwarding class
used
• a default ingress forwarding class and in-profile/out-of-profile state
• a default queue and in-profile/out-of-profile state for ring type network QoS
policy
Optional ip-interface type network QoS policy elements include the LSP EXP value
or DSCP name to forwarding class and profile state mappings for all EXP values or
DSCP values received. Optional ring type network QoS policy elements include the
dot1p bits value to queue and profile state mappings for all dot1p bit values received.
Note: Queuing parameters are the same for both network and service QoS policies. See
Network and Service QoS Queue Parameters.