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High DataPlane cores utilization after upgrading sonicOS version to 6.5.4.8-89n

12/14/2021 15 People found this article helpful 104,578 Views

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    Description

    If you're noticing high DataPlane cores utilization after upgrading sonicOS version to 6.5.4.8-89n, latency in LAN network and firewall GUI management please consider the resolution provided in this article. 

    NOTE:This is in fact that there were no changes in the environment, topology and traffic profile when observing this issue post firmware update. Also, perform safe downgrade to the version you were  previously on and check if it takes the CPU utilization back to normal which is a strong indication the issue is related to this hotfix.
    How Do I Safely Perform A Firewall Firmware Downgrade?

    Resolution

    We have a hotfix release to address this issue hence please upgrade the firewall to 6.5.4.8-89n--HFGEN6-2737-17n by following below steps:

    1. Export the configuration and create a local backup file on the firewall 
      How Can I Save A Backup Settings File From A SonicWall Firewall?
    2. Open a support ticket to collect the hotfix build for your device model 

      There are two ways to contact technical support:

      1. Online: Visit mysonicwall.com. Once logged in select Resources & Support | Support | Create Case. 

      2. By phone: please use our toll-free number at 1-888-793-2830. Please have your SonicWall serial number available to create a new support case.

      If you do not have a mysonicwall.com account create one for free!

    3. Schedule a maintenance window and upgrade the device to the hotfix
      How Can I Upgrade SonicOS Firmware?

    The issue has also been fixed on 6.5.4.9-92n.

     

    ISSUE ID:

    GEN6-2737

    Related Articles

    • Configuring and troubleshooting SonicWALL Switches
    • How can I get alerted if a WAN link goes down in a WAN fail-over scenario?
    • Configuring and troubleshooting High Availability

    Categories

    • Firewalls > NSa Series > Firmware
    • Firewalls > TZ Series > Firmware

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