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7210 SAS-X and 7210 SAS-R6 OS Quality of Service Guide
Network qos (type == ip-interface) policies are supported for network IP interfaces on
hybrid ports. The behavior is similar to existing behavior for network IP interfaces on
network ports. It supports per IP interface ingress classification and policing, and egress
marking (only MPLS EXP marking for MPLS traffic).
Network qos (type == port) policies are supported for hybrid ports. The behavior is similar
to existing behavior for network ports. It supports per port ingress classification and
policing, and egress marking (Dot1p and/or DSCP). The egress marking values
configured in this policy is also used to mark packets on SAP egress if sap-qos-marking is
disabled on the port. For more information, see below.
SAP ingress QoS policies are supported for SAPs configured on Hybrid ports. The
behavior is similar to existing behavior for access SAP ingress. It supports per SAP
ingress classification, policing and ingress queuing (only for 1G ports).
SAP egress QoS policies are supported for SAPs configured on Hybrid ports. The
behavior is similar to existing behavior for access SAP egress. It supports per SAP egress
queuing and marking. The default SAP egress policy uses CIR = 0 and PIR = max for all
the queues. The egress marking values configured in this policy is also used to mark
packets on SAP egress if sap-qos-marking is enabled on the port.
On 7210 SAS-X, FC based scheduling is support on egress of hybrid ports and SAP based
scheduling is not available. On 7210 SAS-R6, only SAP based scheduling is supported.
For marking traffic sent out of SAPs and IP traffic sent out of IP interfaces configured on
hybrid port user has an option to use either the SAP egress qos policy (also known as
SAP-based marking) or network qos policy of type 'port' (also known as port-based
marking). On 7210 SAS-X, the CLI command configure> port> ethernet> network> sap-
qos-marking, allows user to enable or disable use of SAP-based marking (that is, SAP
egress qos policy for SAP egress marking).
→ By default, SAP-based marking is disabled on hybrid ports. With this setting, traffic
sent out of the hybrid port uses the FC to dot1p and FC to DSCP marking configured
in the network qos policy of type port. If marking is enabled under the network qos
policy (type port), then the dot1p and/or DSCP values is used for traffic sent out of all
SAPs configured on the hybrid port (that is, all SAPs configured on the hybrid port
under Epipe, VPLS, IES, PBB, and VPRN) and IP traffic sent out of IP interfaces.
NOTE that if DSCP values are specified, then all the traffic, including the traffic sent
out of SAPs configured in a L2 services, will get marked with DSCP.
→ If user enables SAP-based marking, then traffic sent out of the SAPs configured on
the hybrid port uses the FC to dot1p values specified in the SAP egress policy for
SAPs configured in VPLS (except B-VPLS service) and, Epipe services. For traffic
sent out of IP interfaces, IES SAPs, SAPs in PBB B-VPLS service and VPRN SAPs,
no marking is done.
→ MPLS traffic is marked with EXP values if marking is enabled in network qos policy
of type ip-interface. It is not dependent on use of SAP-based or port-based marking.
QoS Policies
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