Saving BLE Mesh Settings

[SpencerEtn]

Hi,

We had a couple questions regarding storing some things related to the BLE mesh. We are building our application off the ble example light_ctrl.

1. Looking at the Rpl, can we allocate a max memory for replay messages? If so, where can we do that and what is the default value?

2. Looking at the gatt; is it necessary to write this to flash?

[Mttrinh]

Hi,

Could you provide me with which mesh SDK you are using and SDK version? nRF5 SDK for Mesh or nRF Connect SDK?

[Mttrinh]

Hi,

1. Every RPL entry takes ~35 bytes (excluding NVS overhead). But depending on a use case, mesh configuration and deployment, the bigger network may require more entries in the RPL list. Amount of RPL entries to be stored is controlled by CONFIG_BT_MESH_CRPL. RPL entries are stored in settings partition every CONFIG_BT_MESH_RPL_STORE_TIMEOUT. But setting this to -1 will disable automatic store of pending RPL entries. See: https://docs.zephyrproject.org/latest/reference/kconfig/CONFIG_BT_MESH_RPL_STORE_TIMEOUT.html?highlight=bt_mesh_rpl_store_timeout You can pass specific address to `bt_mesh_rpl_pending_store` if you don't want to store all entries.

2. I assume that you are referring to db_hash_store? What models are you using?