Cisco Cisco ASR 5700
APN Configuration Mode Commands
ip qos-dscp ▀
Command Line Interface Reference, StarOS Release 17 ▄
1371
+
More than one of the above keywords can be entered within a single command.
Usage
DSCP levels can be assigned to specific traffic patterns in order to ensure that data packets are delivered
according to the precedence with which they’re tagged. The diffserv markings are applied to the IP header of
every subscriber data packet transmitted over the Gi interface(s).
The traffic patterns are defined by QCI (1 to 9). Data packets falling under the category of each of the traffic
patterns are tagged with a DSCP that further indicate their precedence as shown in following tables
respectively:
according to the precedence with which they’re tagged. The diffserv markings are applied to the IP header of
every subscriber data packet transmitted over the Gi interface(s).
The traffic patterns are defined by QCI (1 to 9). Data packets falling under the category of each of the traffic
patterns are tagged with a DSCP that further indicate their precedence as shown in following tables
respectively:
Table 16. Class structure for assured forwarding (af) levels
Drop Precedence
Class
Class 1
Class 2
Class 3
Class 4
Low
af11
af21
af31
af41
Medium
af12
af22
af32
af41
High
af13
af23
af33
af43
Precedence (low to high)
DSCP
1
Best Effort (be)
2
Class 1
3
Class 2
4
Class 3
5
Class 4
6
Express Forwarding (ef)
The DSCP level can be configured for multiple traffic patterns within a single instance of this command.
Important:
If a GGSN service is associated with a P-GW service, then the GGSN service will use the QCI-QoS
mapping tables specified in the
qci-qos-mapping
command and assigned to its associated P-GW service.
Example
The following command configures the DSCP level for QCI to be Expedited Forwarding,
ef
:
ip qos-dscp qci 1 ef