Feature Changes

TCP hardening between RCM and UPF is supported with this release. As part of RCM checkpoint manager hardening, UPF supports the heartbeat mechanism between UP sessmgr and RCM checkpoint manager. This feature provides CLI support to enable or disable TCP hardening between RCM and UPF.

Previous Behavior: TCP hardening was not supported and not configurable.

New Behavior: Use the following CLI commands to configure the heartbeat mechanism:

  • To enable or disable sending the heartbeat from UP sessmgr to RCM checkpointmgr, use the following command in the Context > Redundancy-Configuration-Module mode. This command is disabled by default.

    up-sm-heartbeat { disable | enable }

    To verify the configuration, use the show config context context_name command.

  • To enable or disable heartbeat from RCM to active or standby UPF, use the following command in RCM Ops-center. This command is disabled by default.

    k8 smf profile rcm-config-ep enable-up-heartbeat { false | true }

Customer Impact: The heartbeat mechanism addresses the intermittent issues of TCP connectivity with UP sessmgr and RCM checkpoint managers.

For more information, refer to the UCC 5G RCM Configuration and Administration Guide.