C.12 Transport

29.2323GPPMedia Gateway Controller (MGC) - Media Gateway (MGW) interfaceRelease 17Stage 3TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

Table C.12/1: Transport

Supported Transports:

1) For pure IP connections, H.248/SCTP/IP should be used. In addition, to allow for flexible implementations of gateways and controllers in order to offer efficient use of SCTP associations the M3UA layer may also be added on top of SCTP

2) For pure ATM connections, H.248/MTP3b/SSCF/SSCOP/AAL5/ATM should be used.

3) For mixed IP&ATM connections, H.248/M3UA/SCTP/IP shall be used as the IP transport.

NOTE1: If using SCTP as defined in IETF RFC 2960 [12] the MGW shall always be the node to perform the "Initiation".

NOTE2: Checksum calculation for SCTP shall be supported as specified in RFC 3309 [44] instead of the method specified in RFC 2960 [12].

Table C.12/2: Segmentation

Segmentation Supported:	No
NOTE: This field requires at least version 3 of the H.248.1 protocol.

Table C.12/3: Support of Control Association Monitoring

Control Association Monitoring Supported:

1. Inherent in Transport

2. H.248.14 (optional MGW-driven monitoring)

3. Empty AuditValue on Root (MGC-driven monitoring