diff options
| -rw-r--r-- | src/core/config/misc.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/core/config/misc.h b/src/core/config/misc.h index b04e32ea6..70e0c12e0 100644 --- a/src/core/config/misc.h +++ b/src/core/config/misc.h @@ -424,9 +424,14 @@ /** * @def OPENTHREAD_CONFIG_DEFAULT_SED_BUFFER_SIZE * - * This setting configures the default buffer size for IPv6 datagram destined for an attached SED. - * A Thread Router MUST be able to buffer at least one 1280-octet IPv6 datagram for an attached SED according to - * the Thread Conformance Specification. + * Specifies the value used in emitted Connectivity TLV "Rx-off Child Buffer Size" field which indicates the + * guaranteed buffer capacity for all IPv6 datagrams destined to a given rx-off-when-idle child. + * + * Changing this config does not automatically adjust message buffers. Vendors should ensure their device can support + * the specified value based on the message buffer model used: + * - OT internal message pool (refer to `OPENTHREAD_CONFIG_NUM_MESSAGE_BUFFERS` and `MESSAGE_BUFFER_SIZE`), or + * - Heap allocated message buffers (refer to `OPENTHREAD_CONFIG_MESSAGE_USE_HEAP_ENABLE), + * - Platform-specific message management (refer to`OPENTHREAD_CONFIG_PLATFORM_MESSAGE_MANAGEMENT`). * */ #ifndef OPENTHREAD_CONFIG_DEFAULT_SED_BUFFER_SIZE @@ -436,9 +441,11 @@ /** * @def OPENTHREAD_CONFIG_DEFAULT_SED_DATAGRAM_COUNT * - * This setting configures the default datagram count of 106-octet IPv6 datagram per attached SED. - * A Thread Router MUST be able to buffer at least one 106-octet IPv6 datagram per attached SED according to - * the Thread Conformance Specification. + * Specifies the value used in emitted Connectivity TLV "Rx-off Child Datagram Count" field which indicates the + * guaranteed queue capacity in number of IPv6 datagrams destined to a given rx-off-when-idle child. + * + * Similar to `OPENTHREAD_CONFIG_DEFAULT_SED_BUFFER_SIZE`, vendors should ensure their device can support the specified + * value based on the message buffer model used. * */ #ifndef OPENTHREAD_CONFIG_DEFAULT_SED_DATAGRAM_COUNT |