Feature Description
Currently, QCI-based DSCP markings are applicable for Pure-S and Pure-P calls. The DSCP markings are based on QCI-QOS-Mapping associated with respective S-GW service or P-GW service. For collapse calls QCI-QOS-Mapping associated with PGW-service is applicable. This feature helps to apply the DSCP markings for collapse calls based on associated S-GW and P-GW services for uplink and downlink traffic. For uplink traffic, DSCP markings associated with logical P-GW service are applicable. For downlink traffic, DSCP markings associated with logical S-GW service are applicable. The DSCP markings are present in IP header of data traffic as a part of GTP-U header and Inner IP. There’s option to enabled or disable this functionality by CLI configuration. When you enable the feature, then only the new functionality is applicable otherwise existing functionality also works. By default, this feature is disabled, so that there’s no impact on customers who upgrades to this feature.