fiveqi-map
Syntax
fiveqi-map identifier {
upstream-rewrite {
dscp dscp;
dscp-n3 dscp-n3;
forwarding-class forwarding-class;
loss-priority(high | low);
}
}Hierarchy Level
[edit services agf]
Description
Configure the Quality of Service (QoS) attributes for a 5G QoS identifier (5QI) value in the 5QI table.
Customers send data packets across the access Y5 interface to the Access Gateway Function (AGF) in clear IP text. AGF encapsulates the data packet using GPRS Tunnelling Protocol (GTP) and forwards the encapsulated packet to the 5GC. To support GTP encapsulation, AGF sets the QFI and DSCP value in the outer IP header based on the packet priority, forwarding class, and packet loss priority of the data.
AGF looks for 5QI and QoS Flow ID (QFI) values in N2 signaling messages from the Access and Mobility Function (AMF) and matches those values to parameters in the 5QI table. AGF derives the forwarding class and loss priority from the 5QI mapping table. AGF classifies data packet priority using the authorized QoS rules sent in the N1 signaling messages. AGF manages individual subscriber session and applies the QoS rules that corresponds to the 5QI in the 5QI mapping table. AGF can then update differentiated services code point (DSCP) in the payload to match the derived QoS parameters. When you configure DSCP parameters in the 5QI mapping table, AGF overrides the payload DSCP. AGF updates both the inner and outer the IP header when it forwards the GTP packet in the data plane.
This statement allows you to:
-
Override the QoS attributes for the non-dynamic 5QI.
-
Add a dynamic 5QI and its QoS attributes.
You can configure the following QoS attributes for each defined 5QI. AGF uses the information to update the DSCP value in the IP header as it forwards the data packet from the Y5 interface to the N3 interface.
-
Forwarding Class
-
Packet Loss Priority
-
Upstream DSCP
-
Upstream N3 DSCP
Options
| identifier |
5QI number Range: 0 through 63 |
The remaining statements are explained separately. See CLI Explorer.
Required Privilege Level
system—To view this statement in the configuration.
system-control—To add this statement to the configuration.
Release Information
Command introduced in Junos OS Release 23.2R1.