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Merge pull request #224544 from b-branco/allow-gbr-5qi-values
Lift restriction on use of 5QI GBR values
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‎articles/private-5g-core/collect-required-information-for-service.md

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| The maximum bit rate (MBR) for uplink traffic (traveling away from user equipment (UEs)) across all SDFs that match data flow policy rules configured on this service. The MBR must be given in the following form: `<Quantity>` `<Unit>` </br></br>`<Unit>` must be one of the following: </br></br>- *bps* </br>- *Kbps* </br>- *Mbps* </br>- *Gbps* </br>- *Tbps* </br></br>`<Quantity>` is the quantity of your chosen unit. </br></br>For example, `10 Mbps`. | **Maximum bit rate (MBR) - Uplink** | Yes|
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| The MBR for downlink traffic (traveling towards UEs) across all SDFs that match data flow policy rules configured on this service. The MBR must be given in the following form: `<Quantity>` `<Unit>` </br></br>`<Unit>` must be one of the following: </br></br>- *bps* </br>- *Kbps* </br>- *Mbps* </br>- *Gbps* </br>- *Tbps* </br></br>`<Quantity>` is the quantity of your chosen unit. </br></br>For example, `10 Mbps`. | **Maximum bit rate (MBR) - Downlink** | Yes|
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| The default Allocation and Retention Policy (ARP) priority level for this service. Flows with a higher ARP priority level preempt flows with a lower ARP priority level. The ARP priority level must be an integer between 1 (highest priority) and 15 (lowest priority). | **Allocation and Retention Priority level** |No. Defaults to 9.|
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| The default 5G QoS Indicator (5QI) or QoS class identifier (QCI) value for this service. The 5QI (for 5G networks) or QCI (for 4G networks) value identifies a set of QoS characteristics that control QoS forwarding treatment for QoS flows or EPS bearers. </br></br>We recommend you choose a 5QI or QCI value that corresponds to a non-GBR QoS flow or EPS bearer. These values are in the following ranges: 5-9; 69-70; 79-80. For more details, see 3GPP TS 23.501 for 5QI or 3GPP TS 23.203 for QCI.</br></br>You can also choose a non-standardized 5QI or QCI value.</p><p>Azure Private 5G Core doesn't support 5QI or QCI values corresponding to GBR or delay-critical GBR QoS flows or EPS bearers. Don't use a value in any of the following ranges: 1-4; 65-67; 71-76; 82-85. | **5QI/QCI** |No. Defaults to 9.|
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| The default 5G QoS Indicator (5QI) or QoS class identifier (QCI) value for this service. The 5QI (for 5G networks) or QCI (for 4G networks) value identifies a set of QoS characteristics that control QoS forwarding treatment for QoS flows or EPS bearers. </br></br>You can choose a standardized or a non-standardized 5QI or QCI value. For more details, see 3GPP TS 23.501 for 5QI or 3GPP TS 23.203 for QCI. | **5QI/QCI** |No. Defaults to 9.|
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| The default preemption capability for QoS flows or EPS bearers for this service. The preemption capability of a QoS flow or EPS bearer controls whether it can preempt another QoS flow or EPS bearer with a lower priority level. You can choose from the following values: </br></br>- **May not preempt** </br>- **May preempt** | **Preemption capability** |No. Defaults to **May not preempt**.|
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| The default preemption vulnerability for QoS flows or EPS bearers for this service. The preemption vulnerability of a QoS flow or EPS bearer controls whether it can be preempted by another QoS flow or EPS bearer with a higher priority level. You can choose from the following values: </br></br>- **Preemptible** </br>- **Not Preemptible** | **Preemption vulnerability** |No. Defaults to **Preemptible**.|
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‎articles/private-5g-core/collect-required-information-for-sim-policy.md

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|The names of the services permitted on the data network. You must have already configured your chosen services. For more information on services, see [Policy control](policy-control.md). | **Service configuration** | No. The SIM policy will only use the service you configure using the same template. |
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|The maximum bitrate for traffic traveling away from UEs across all non-GBR QoS flows or EPS bearers of a given PDU session or PDN connection. The bitrate must be given in the following form: `<Quantity>` `<Unit>` </br></br>`<Unit>` must be one of the following: </br></br>- *bps* </br>- *Kbps* </br>- *Mbps* </br>- *Gbps* </br>- *Tbps* </br></br>`<Quantity>` is the quantity of your chosen unit. </br></br>For example, `10 Gbps`. | **Session aggregate maximum bit rate - Uplink** | Yes |
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|The maximum bitrate for traffic traveling towards UEs across all non-GBR QoS flows or EPS bearers of a given PDU session or PDN connection. The bitrate must be given in the following form: `<Quantity>` `<Unit>` </br></br>`<Unit>` must be one of the following: </br></br>- *bps* </br>- *Kbps* </br>- *Mbps* </br>- *Gbps* </br>- *Tbps* </br></br>`<Quantity>` is the quantity of your chosen unit. </br></br>For example, `10 Gbps`. | **Session aggregate maximum bit rate - Downlink** | Yes |
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|The default 5QI (for 5G) or QCI (for 4G) value for this data network. These values identify a set of QoS characteristics that control QoS forwarding treatment for QoS flows or EPS bearers. </br></br>We recommend you choose a 5QI or QCI value that corresponds to a non-GBR QoS flow or EPS bearer. These values are in the following ranges: 5-9; 69-70; 79-80. For more details, see 3GPP TS 23.501 for 5QI or 3GPP TS 23.203 for QCI. </br></br>You can also choose a non-standardized 5QI or QCI value. </br></br>Azure Private 5G Core doesn't support 5QI or QCI values corresponding to GBR or delay-critical GBR QoS flows or EPS bearers. Don't use a value in any of the following ranges: 1-4; 65-67; 71-76; 82-85. | **5QI/QCI** | No. Defaults to 9. |
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|The default 5QI (for 5G) or QCI (for 4G) value for this data network. These values identify a set of QoS characteristics that control QoS forwarding treatment for QoS flows or EPS bearers.</br></br>You can choose a standardized or a non-standardized 5QI or QCI value. For more details, see 3GPP TS 23.501 for 5QI or 3GPP TS 23.203 for QCI. | **5QI/QCI** | No. Defaults to 9. |
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|The default Allocation and Retention Policy (ARP) priority level for this data network. Flows with a higher ARP priority level preempt flows with a lower ARP priority level. The ARP priority level must be an integer between 1 (highest priority) and 15 (lowest priority). | **Allocation and Retention Priority level** | No. Defaults to 1. |
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|The default preemption capability for QoS flows or EPS bearers on this data network. The preemption capability of a QoS flow or EPS bearer controls whether it can preempt another QoS flow or EPS bearer with a lower priority level. </br></br>You can choose from the following values: </br></br>- **May preempt** </br>- **May not preempt** | **Preemption capability** | No. Defaults to **May not preempt**.|
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|The default preemption vulnerability for QoS flows or EPS bearers on this data network. The preemption vulnerability of a QoS flow or EPS bearer controls whether it can be preempted by another QoS flow or EPS bearer with a higher priority level. </br></br>You can choose from the following values: </br></br>- **Preemptible** </br>- **Not Preemptible** | **Preemption vulnerability** | No. Defaults to **Preemptible**.|

‎articles/private-5g-core/differentiated-services-codepoint-5qi-mapping.md

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---
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title: Azure Private 5G Core 5QI to DSCP mapping
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description: Learn about the mapping of 5QI to DSCP values that Azure Private 5G Core uses for transport level marking.
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author: b-branco
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ms.author: biancabranco
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ms.service: private-5g-core
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ms.topic: reference
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ms.date: 01/27/2023
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---
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# 5QI to DSCP mapping
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This article details the mapping of 5G QoS identifier (5QI) to differentiated services codepoint (DSCP) values that Azure Private 5G Core uses for transport level marking.
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The 5QI value, determined when you configured your private mobile network's [policy control](policy-control.md), corresponds to a set of quality of service (QoS) characteristics that should be used for a QoS flow. These characteristics include guaranteed and maximum bitrates, priority levels, and limits on latency, jitter, and error rate.
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Azure Private 5G Core will attempt to configure DSCP markings on outbound packets based on the configured 5QI value. The DSCP markings allow the data network to determine how to prioritize a packet.
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Azure Private 5G Core performs 5QI to DSCP mapping on downlink packets (towards the UE). Uplink packets (away from the UE) are left unchanged.
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For standard DSCP values, see [RFC 2474: Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers](https://www.rfc-editor.org/rfc/rfc2474).
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## GBR 5QIs
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The following table contains the mapping of GBR 5QI to DSCP values.
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| 5QI value | DSCP value | DSCP value meaning |
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|--|--|--|
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| 1 | 46 | Expedited Forwarding |
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| 2 | 36 | Assured Forwarding 42 |
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| 3 | 10 | Assured Forwarding 11 |
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| 4 | 28 | Assured Forwarding 32 |
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| 65 | 46 | Expedited Forwarding |
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| 66 | 46 | Expedited Forwarding |
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| 67 | 34 | Assured Forwarding 41 |
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| 71 | 28 | Assured Forwarding 32 |
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| 72 | 28 | Assured Forwarding 32 |
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| 73 | 28 | Assured Forwarding 32 |
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| 74 | 28 | Assured Forwarding 32 |
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| 76 | 28 | Assured Forwarding 32 |
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## Delay-critical GBR 5QIs
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The following table contains the mapping of delay-critical GBR 5QI to DSCP values.
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| 5QI value | DSCP value | DSCP value meaning |
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|--|--|--|
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| 82 | 18 | Assured Forwarding 21 |
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| 83 | 18 | Assured Forwarding 21 |
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| 84 | 18 | Assured Forwarding 21 |
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| 85 | 18 | Assured Forwarding 21 |
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| 86 | 18 | Assured Forwarding 21 |
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## Non-GBR 5QIs
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The following table contains the mapping of non-GBR 5QI to DSCP values.
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| 5QI value | DSCP value | DSCP value meaning |
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|--|--|--|
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| 5 | 46 | Expedited Forwarding |
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| 6 | 10 | Assured Forwarding 11 |
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| 7 | 18 | Assured Forwarding 21 |
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| 8 | 18 | Assured Forwarding 21 |
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| 9 | 0 | Best Effort |
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| 69 | 34 | Assured Forwarding 41 |
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| 70 | 18 | Assured Forwarding 21 |
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| 79 | 18 | Assured Forwarding 21 |
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| 80 | 68 | Assured Forwarding 41 |

‎articles/private-5g-core/policy-control.md

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- A *5G QoS identifier (5QI)*. The 5QI value corresponds to a set of QoS characteristics that should be used for the QoS flow. These characteristics include guaranteed and maximum bitrates, priority levels, and limits on latency, jitter, and error rate. The 5QI is given as a scalar number.
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To allow for packet prioritization on the underlying transport network, Azure Private 5G Core will attempt to configure differentiated services codepoint (DSCP) markings on outbound packets based on the configured 5QI value for standardized GBR and non-GBR values. For more information on the mapping of 5QI to DSCP values, see [5QI to DSCP mapping](differentiated-services-codepoint-5qi-mapping.md).
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You can find more information on 5QI values and each of the QoS characteristics in 3GPP TS 23.501. You can also find definitions for standardized (or non-dynamic) 5QI values.
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The required parameters for each 5QI value are pre-configured in the Next Generation Node B (gNB).

‎articles/private-5g-core/toc.yml

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href: region-code-names.md
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- name: ASE VM sizing
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href: azure-stack-edge-virtual-machine-sizing.md
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- name: 5QI to DSCP mapping
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href: differentiated-services-codepoint-5qi-mapping.md
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- name: Resources
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items:
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- name: Azure Private 5G Core product page

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