@CHIP-RTOS C Library - TCP/IP API

Dev_Set_IfaceMTU

Set device interface MTU.

int far Dev_Set_IfaceMTU( DevUserIfaceHandle IfaceHandle,
                          int ifMTU);

Parameters

DevHandlePtr

Device handle

ifMTU

The Maximum Transmission Unit (MTU) for a device. [bytes]

Return Value

0: success
Non-zero: Error code

Comments

The minimum MTU for IPv4 networks is 68 bytes.   For IPv6 the minimum is 1280 bytes.

The device handle may be obtained using the Dev_Get_Handle_By_Name() API.

See Also

Dev_Open_Interface        Dev_Get_Handle_By_Name        

RTOS API

On the first call, this library function invokes a software interrupt which modifies the code at the calling site inside your application program.   A direct FAR JMP into the @CHIP-RTOS-x86 implementation for this function is installed so that on return and on any subsequent calls to this API this dynamic link reaches the function's implementation directly.

Related Topics

TCP/IP Device Driver overview

Supported since or modified in @CHIP-RTOS version

SC12	SC13	SC11	SC1x3	SC2x
n/a	n/a	n/a	V1.36	V1.36

Supported by @CHIP-RTOS C Library since version

CLIB
V2.20