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DES-7200 Configuration Guide Chapter 3 MPLS QOS
Configuration
3-7
When the incoming packets are non IPv4 packets, the inner CoS will be
configured as per the default CoS value of interface, and the final queuing of
packets will be determined as per the inner CoS.
Interface trust mode is set to trust CoS (configured by executing "mls qos
trust cos")
When the incoming packets are IPv4 packets carrying the Tag, the DSCP value
of packets will be modified as per the CoS value and CoS-to-DSCP Map of
packets, and the inner CoS is further configured and CoS of packets is modified
as per DSCP-to-CoS Map. The final queuing of packets will be determined as
per the inner CoS.
When the incoming packets are untagged IPv4 packets, the DSCP value of
packets will be modified as per the default CoS value and CoS-to-DSCP Map of
interface, and the inner CoS is further configured and CoS of packets is
modified as per DSCP-to-CoS Map. The final queuing of packets will be
determined as per the inner CoS.
When the incoming packets are non IPv4 packets carrying the Tag, the inner
CoS will be configured as per the CoS value of packets, and the final queuing of
packets will be determined as per the inner CoS.
When the incoming packets are untagged non-IPv4 packets, the inner CoS will
be configured as per the default CoS value of interface, and the final queuing of
packets will be determined as per the inner CoS.
Interface trust mode is set to IP Precedence (configured by executing "mls
qos trust ip-precedence")
When the incoming packets are IPv4 packets, the DSCP value of packets will
be obtained and modified as per the IP Precedence and IP PRE-to-DSCP Map
of packets, and the inner CoS is further configured as per DSCP-to-CoS Map.
The final queuing of packets will be determined as per the inner CoS.
When the incoming packets are non-IPv4 packets, trust CoS will be handled as
per the interface trust mode.
Interface trust mode is set to trust DSCP (configured by executing "mls qos
trust dscp")
When the incoming packets are IPv4 packets, the inner CoS will be configured
as per the DSCP value of packets and DSCP-to-CoS Map, and the final
queuing of packets will be determined as per the inner CoS.
When the incoming packets are non-IPv4 packets, trust CoS will be handled as
per the interface trust mode.
Interface trust mode is set to trust EXP (configured by executing "mls qos
trust experimental")