While it is typically preferred to have all hosts provisioned dynamically through DHCP snooping, it may be needed to provide static access for specific hosts (those that do not support DHCP).
Because a subscriber identification policy is not applicable to static subscriber hosts, the subscriber identification string, subscriber profile and SLA profile must be explicitly defined with the host’s IP address and MAC address (if ESM is enabled).
If an SPI associated with the named SLA profile already exists on the SAP for the subscriber, the static subscriber host is placed into that SPI. If an SPI does not yet exist, one is created if possible. If the SLA profile cannot be created, or the host cannot be placed in the existing SPI (the host-limits was exceeded), the static host definition fails.