Limitations

This feature has the following known limitations::

  • If the GTPU Echo is enabled and the first bind IP address is deleted, the Echo request from the remote peer will not reach the UPF causing the remote peer to detect path failure. The subsequent downlink traffic from the UPF for that subscriber results in an error indication received at UPF.

    The GTPU services stop only if all the bind IP addresses are deleted. These IP addresses can be under single interface or separate interfaces.

  • UPF does not allow to configure different IP address types to be configured per GTPU service i.e., IPv4 + IPv6 or IPv4 + IPv4/IPv6 combinations are not allowed. Only the combinations of IPv4 or IPv6 or IPv4+IPv6, are allowed to be configured.