Configure Quality of Service in Prisma Access
Quality of Service (QoS) is a set of technologies that work on a network to guarantee its ability to dependably run high-priority applications and traffic under limited network capacity. You can configure QoS in Prisma Access to prioritize business-critical traffic or traffic that requires low latency, such as VoIP or videoconferencing. You can also reserve a minimum amount of bandwidth for business-critical applications.
Prisma Access can either mark ingress traffic using a security policy or it can honor DSCP markings set by your organization's on-premise device.
Prisma Access for Clean Pipe also supports QoS; see Configure Quality of Service for Clean Pipe for details.
QoS Configuration Overview
Use the following workflow to configure QoS in Prisma Access. See Configure QoS in Prisma Access for the detailed steps.
- Mark the ingress traffic using a security policy or using marking from an on-premise device.You can create PAN-OS security policies to mark traffic destined to Prisma Access for mobile users and for remote network connections. For service connections, Prisma Access will honor traffic marking from your organization’s on-premise devices. Optionally, you can also use on-premise devices to mark traffic for remote networks.To ensure predictable results, we recommend marking traffic using either security policies in Prisma Access or your on-premise device, but not both. If there are differences between the security policies in Prisma Access and the on-premise device, the security policy in Prisma Access overrides the policy in the on-premise device.
- Shape the traffic using a QoS profile.You can create QoS profiles to shape QoS traffic for service connections and for remote network connections and apply those profiles to traffic that you marked with PAN-OS security policies, traffic that you marked with an on-premise device, or both PAN-OS-marked and on-premise-marked traffic.
- Enable QoS on the service connection or remote network connection and bind the QoS profile to the connection.
The following figure shows the available QoS deployments in Prisma Access.
The following examples show how Prisma Access marks and shapes traffic.
In the following example, the administrator created a security policy on the Mobile_User_Device_Group to mark incoming mobile user traffic. These policies assign traffic an IP precedence value of AF11.
The administrator also created QoS profiles with QoS policy rules, enabled QoS on the service connection and remote network connection, and applied the profiles to those connections to shape the traffic at the traffic’s egress point based on the QoS markings.
Prisma Access marks traffic at its ingress point based on security policies or honors marking set by your on-premise devices, and shapes the traffic on egress to your service connections or remote network connections using QoS profiles.
The following example shows the QoS traffic flow from a branch office to an HQ/data center. The administrator creates a security policy on the
Remote_Network_Device_Groupto mark the incoming traffic from the remote network connection and enabled QoS and applied a QoS profile on the service connection to shape the outgoing traffic.
The following example shows a hybrid deployment with an on-premise firewall at a branch that is connected by Prisma Access with a remote network connection, and the on-premise firewall marks the traffic. This deployment honors the marking set on the on-premise firewall. You must enable QoS and apply a QoS profile on the service connection, so that Prisma Access can shape the traffic at egress.
Prisma Access honors all DSCP marking from the on-premise device as long as that traffic does not match an overriding security policy on Prisma Access.
Configure QoS in Prisma Access
Configure Quality of Service in Prisma Access by completing the following task.
- Add one or more security policy rules for remote networks and mobile users to mark the ingress traffic for QoS.You use these policies to match a traffic flow and assign it a selected DSCP value.
- Select.PoliciesSecurityPre RulesAlternatively, selectto add a rule at the bottom of the rule order that is evaluated after a pre-rule.PoliciesSecurityPost RulesBe sure that you select the correctDevice Group. To create a security rule for a remote network, select the device group for the remote network (for example,Remote_Network_Device_Group); for mobile users, select the device group for the mobile users (for example,Mobile_User_Device_Group).
- Adda security policy rule.
- Enter aNamefor the rule.
- Define the matching criteria for the source or destination fields in the packet.
- ClickActions, then select aQoS Markingof eitherIP DSCPorIP Precedence.
- Enter the QoS value in binary form, or select the value from the drop-down.The following screenshot shows a security policy rule that matches traffic marked with anIP DSCPvalue ofaf11.
- Add one or more QoS policy rules.You use QoS policies to bind DSCP marking to one of eight available classes. You use these classes later when you create one or more QoS profiles.
- Select.PoliciesQoSPre RulesAlternatively, selectto add a rule at the bottom of the rule order that is evaluated after a pre-rule.PoliciesQoSPost RulesBe sure that you select the correctDevice Groupfor the service connection (for example,Service_Conn_Device_Group) or remote network connection (for example,Remote_Network_Device_Group). If a rule in a Shared device group has defined values other than the values in theGeneral,DSCP/ToS, andOthersettings areas, Prisma Access does not apply the rule on the remote network and service connection.
- Adda QoS policy rule.
- ClickGeneraland enter a name for the policy rule.
- Click theDSCP/ToStab, then clickCodepointsandAddone or more new codepoints.For Clean Pipe deployments, you can specify additional QoS settings in policy, such as source, destination, or application.
- Specify aNamefor the DSCP/ToS rule, then select aTypeandCodepoint.Alternatively, keep the default value (Any) to allow the policy to match to traffic regardless of the Differentiated Services Code Point (DSCP) value or the IP Precedence/Type of Service (ToS) defined for the traffic.
- Click theOther Settingstab, then Choose the QoSClassto assign to the rule.You define class characteristics in the QoS profile.
- Create one or more QoS profiles to shape QoS traffic on egress for service connections and remote network connections.You use profiles to shape the traffic at egress point by defining QoS classes and assigning a bandwidth to them. You must select either an existing QoS profile or create a new QoS profile when you enable QoS for Prisma Access.
- Select the correct template the profile you want to create (Remote_Network_TemplateorService_Conn_Template); then, selectandNetworkNetwork ProfilesQoS Profile
- Adda profile.
- Enter a profileName.
- Set the overall bandwidth limits for the QoS profile rule.
- Enter anEgress Maxthat represents the maximum throughput (in Mbps) for traffic leaving the service connection or remote network connection.
- For service connections, specify a number of up to 1 Gpbs (1,000 Mbps).Do not enter a number greater than 1 Gbps; Prisma Access calculates service connection bandwidth per service connection IPSec tunnel and not cumulatively across multiple tunnels.
- For remote network connections, specify a number up to the maximum licensed bandwidth of your remote network connection.
- Enter anEgress Guaranteedbandwidth that is the guaranteed bandwidth for this profile (in Mbps).Any traffic that exceeds the Egress Guaranteed value is best effort and not guaranteed. Bandwidth that is guaranteed but is unused continues to remain available for all traffic.
- In the Classes section,Addone or more classes and specify how to mark up to eight individual QoS classes.
- Select thePriorityfor the class (eitherreal-time,high,medium, orlow).
- Enter theEgress Maxfor traffic assigned to each QoS class you create.TheEgress Maxfor a QoS class must be less than or equal to the Egress Max for the QoS profile.
- Enter theEgress Guaranteedbandwidth in Mbps for each QoS class.Guaranteed bandwidth assigned to a class is not reserved for that class—bandwidth that is unused continues to remain available to all traffic. When a class of traffic exceeds the egress guaranteed bandwidth, Prisma Access passes that traffic on a best-effort basis.
- Enable QoS for the service connection, remote network connection, or both, and apply the QoS profile to the connection.
- Enable QoS.
- For service connections, select, select aPanoramaCloud ServicesConfigurationService SetupConnection Name, click theQoStab, andEnableQoS.
- For remote network connections, select, select the hypertext for a remote network connectionPanoramaCloud ServicesConfigurationRemote NetworksName, click theQoStab, andEnableQoS.
- Select the QoS profile you created in Step 3 and clickOK.
- Check the QoS status.
- SelectorPanoramaCloud ServicesStatusMonitorService Connection, thenPanoramaCloud ServicesStatusMonitorRemote NetworksMonitortheStatistics.
- ClickQoSto view a page with QoS statistics.This page displays a chart with real-time and historical QoS statistics, including the number of dropped packets per class. This chart displays only for service connections or remote network connections that have QoS enabled, shows the last five minutes of the connection’s network activity, and refreshes every 10 seconds.The following figure shows traffic being passed for classes 1,2,3, and 4. The data below the figure shows the number of packets dropped based on the QoS configuration for classes 2, 3, and 4.
Configure Quality of Service for Clean Pipe
For Clean Pipe deployments, you can create QoS policies to define the traffic that receives QoS treatment and QoS profiles to define the classes of service, including priority, that the traffic can receive. You can define QoS based on DSCP values or zones (Trust or Untrust). To implement QoS with Clean Pipe, select the QoS Profile when you onboard the Clean Pipe. See Configure Prisma Access for Clean Pipe for details.
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