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Adding SLA-Based Steering Profiles

 

You can use the Add SLA Profile page to add a new service-level agreement (SLA)-based steering profile, specify the traffic type profile, SLA configuration, SLA threshold, SLA parameters, path selection criteria, and rate limiting parameters for the profile. Table 1 lists the SLA-based steering profiles that are tuned for specific application categories and traffic types.

Note

Secure SD-WAN Essentials Service does not support SLA-based steering profiles.

Table 1: Predefined SLA-Based Steering Profiles

SLA-Based Steering Profiles

Traffic Type

Application Group

Applications Supported

CSO-AV

VOICE-VIDEO

CSO_Collaboration_AV

Skype for Business

Zoom Video

GotoMeeting

Jive

Jabber

Citrix Online

WebEx

Zoho Meeting

Google Hangout

Adobe Connect

CSO-Productivity

PREMIUM-INTERNET

CSO_Productivity

ERP: Salesforce, Oracle, SAP

Office365 (including SharePoint)

Zendesk

HRPayroll

Zoho Office Suite

Slack

Square

Concur

Adobe

Quickbooks

Freshbooks

Workday

Project Management-MS PJ

Basecamp

Asana

CSO-Security

INTERNET

CSO_Security

Symantec

McAfee

Sophos

Zonealarm

Lookout

CSO-Email

PREMIUM-INTERNET

CSO_Collaboration_Email

MS Exchange

IMAP

POP3

Gmail

OWA

Yahoo

CSO-FileShare

INTERNET

CSO_File_Share

Box

Dropbox

Gsuite

OneDrive

Skype for Business-File Transfer

Zoho Share

To add an SLA-based steering profile to the tenant:

  1. Select Configuration > SD-WAN > SLA-Based Steering Profiles.

    The SLA-Based Steering Profiles page appears.

  2. Click the add icon (+).

    The Add SLA Profile page appears.

  3. Enter the SLA profile information according to the guidelines provided in Table 2.Note

    Fields marked with an asterisk (*) are mandatory.

  4. Click OK to add the SLA profile.

    The SLA-Based Steering Profiles page appears with the new SLA profile information. You are returned to the SLA-Based Steering Profiles page and a confirmation message indicating that the SLA-based steering profile was added is displayed. The page refreshes to display the SLA-based steering profile that you added.

    Alternatively, if you want to discard your updates, click Cancel instead.

    Note

    After you add an SLA-based steering profile, you must add an SD-WAN policy intent that references the SLA-based steering profile in order to enable site-to-site traffic.

Table 2: Fields on the Add SLA Profile page

Field

Guidelines

General

Name

Enter a unique string that can contain alphanumeric characters and hyphens (-); the maximum length is 15 characters.

Traffic Type Profile

Choose a traffic type profile to apply the class-of-service configuration and priority to the SLA profile. You can select a traffic type profile only when it is in the Enabled state.

SLA Configuration

Choose one of the following options:

  • Use Recommended: To use the default SLA threshold and SLA parameters for the SLA-based steering profile.

  • Enter Custom: To specify customized values for SLA configuration and SLA parameters for the SLA-based steering profiles.

SLA Threshold

Choose one of the following options:

  • Liberal—To use a relaxed SLA threshold.

  • Baseline—To use the default SLA threshold.

  • Conservative—To use a strict SLA threshold.

SLA Parameters

Packet Loss

Enter the target packet loss (in %) for the SLA-based steering profile. Packet loss is the percentage of data packets dropped by the network to manage congestion.

RTT

Enter the target round-trip time (RTT) for the SLA-based steering profile.

Jitter

Enter the target jitter (in ms) for the SLA-based steering profile. Jitter is the difference between the maximum and minimum round-trip times of a packet of data.

Path Selection Criteria

Path Preference

Select the preferred WAN link type (MPLS, Internet, or Any) to associate with the SLA profile. Any is the default value.

If a WAN link type that matches the preferred path is enabled, then that WAN link type is used for all traffic from the site.

If you specify that any path can be used, then there is no preference and all traffic-enabled links are used in a load-balancing mode.

Strict Affinity

This field is displayed only if you select MPLS or Internet as the path preference.

Enable the toggle button to use strict link affinity.

For strict link affinity, AppQoE ensures that the path selected is always of the preferred link type. If the preferred link does not meet the SLA, then the traffic remains on the preferred link with the status as SLA not met. If multiple links of the preferred link type are available, then the traffic selects the link that has the highest priority and meets the SLA.

If the link affinity is not strict and if SLA meeting links belonging to the preferred link type are not available, then AppQoE selects a link outside the preferred link type that meets the SLA requirements. If multiple links meeting the SLA are available, then the traffic switches over to the link with the highest priority. If the traffic switches over to a non-preferred link type, then the traffic automatically reverts to the preferred link when the preferred link recovers and conforms to the SLA.

Path Failover Criteria

Specify the failover criteria to determine how links are switched when the active links fail to meet the SLA criteria. In such cases, the traffic is routed to links that meet SLA criteria.

Choose one of the following options:

  • Does not meet one or more SLA parameters—This triggers the path failover if any of the SLA parameters is violated.

  • Does not meet all SLA parameters—This triggers the path failover only when all the SLA parameters are violated.

Advanced Configuration-

Rate Limiting

Maximum Upstream Rate

Enter the maximum upstream rate (in Kbps) for all applications associated with the SLA profile.

Range: 64 through 10,485,760 Kbps

Maximum Upstream Burst Size

Enter the maximum upstream burst size (in bytes).

Range: 1 through 1,342,177,280 bytes

Maximum Downstream Rate

Enter the maximum downstream rate (in Kbps) for all applications associated with the SLA profile.

Range: 64 through 10,485,760 Kbps

Maximum Downstream Burst Size

Enter the maximum downstream burst size (in bytes).

Range: 1 through 1,342,177,280

Loss Priority

Select a loss priority based on which packets can be dropped or retained when network congestion occurs. The chances of a packet getting dropped is the highest when the loss priority is set to High. Other available values are Medium High, Medium Low, and Low.

Real Time Optimized Mode Setting

Note: The following fields are applicable only for sites configured with the real-time-optimized SD-WAN mode.

SLA Sampling

Session-sampling %

Enter the matching percentage of sessions for which you want to run the passive probes.

SLA-violation-count

Enter the number of SLA violations after which you want CSO to switch paths. The range is 1 through 32.

Sampling-period

Enter the sampling period, in seconds, for which the SLA violations are counted. The range is 2 through 60.

Switch-cool-off-period

Enter the waiting period, in seconds, only after which you want the link switch to happen if an active link comes back online. This parameter helps prevent frequent switching of traffic between active and backup links. The range is 5 through 300.

Note: If you do not specify the Switch-cool-off-period and SLA-violation-count parameters, the traffic does not automatically revert to the preferred link when the preferred link comes back online after an SLA violation.