name: MTU
full_form: Maximum Transmission Unit
context: stored additional APN rate control parameters for exception data value as the maximum allowed limit of uplink exception data related to the APN indicated in the ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message in accordance with 3GPP TS 23.401 [10]. If the UE has a previously stored additional APN rate control parameters for exception data value for this APN, the UE shall replace the stored additional APN rate control parameters for exception data value for this APN with the received additional APN rate control parameters for exception data value. If the UE receives non-IP Link MTU parameter or IPv4 Link MTU parameter of the protocol configuration options IE in the ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message, the UE shall pass the received Non-IP Link MTU or IPv4 Link MTU to the upper layer. NOTE: The Non-IP Link MTU and the IPv4 Link MTU size correspond to the maximum length of user data that can be sent either in the user data container in the ESM DATA TRANSPORT message
description: The Maximum Transmission Unit (MTU) is a critical network attribute that defines the largest size of a packet or frame that can be transmitted over a network interface. In this context, MTU refers to the maximum length of user data that can be sent in the user data container in the ESM DATA TRANSPORT message.
explanation: MTU is classified as a Parameter because it represents a critical attribute for network operation, specifically controlling the size of packets or frames transmitted over a network interface. The context highlights its role in determining the maximum length of user data that can be sent in the ESM DATA TRANSPORT message.
section_title: 10.2.1.1Default EPS bearer context activation
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