Network QoS Policies
Quality of Service Guide 131
Self-Generated Traffic Commands
sgt-qos
Syntax sgt-qos
Context config>router
config>service>vprn
Description This command enables the context to configure DSCP/dot1p re-marking for self-generated traffic.
application
Syntax application dscp-app-name dscp {dscp-value | dscp-name}
application dot1p-app-name dot1p dot1p-priority
no application {dscp-app-name | dot1p-app-name}
Context config>router>sgt-qos
config>service>vprn>sgt-qos
Description This command configures DSCP/dot1p re-marking for self-generated application traffic. When an
application is configured using this command, then the specified DSCP name/value is used for all
packets generated by this application within the router instance it is configured. The instances can be
base router, vprn or management.
Using the value configured in this command:
• Sets the DSCP bits in the IP packet.
• Maps to the FC. This value will be signaled from the CPM to the egress forwarding complex.
• Based on this signaled FC the egress forwarding complex QoS policy sets the Ethernet 802.1p
and MPLS EXP bits.
• The Ethernet 802.1p and MPLS EXP bits are set by the egress complex for all packets based
on the signaled FC. This includes ARP, PPPoE and IS-IS packets that, due to their nature, do
not carry DSCP bits.
• The DSCP value in the egress IP header will be as configured in this command. The egress
QoS policy will not overwrite this value.
Only one DSCP name/value can be configured per application, if multiple entries are configured then
the subsequent entry overrides the previous configured entry.
The no form of this command reverts back to the default value.
Parameters dscp-app-name — Specifies the DSCP application name.
Values The following values apply to the 7750 SR and 7950 XRS:
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