tree 85bf72a3c478b7e0b793bda5e68ce49265b34513
parent ae9899561c56ae071b45713ad186585d2379dd6e
author Daniel Willmann <dwillmann@sysmocom.de> 1611590545 +0100
committer daniel <dwillmann@sysmocom.de> 1613139560 +0000

bssgp_bvc_fsm: Set/get maximum BSSGP PDU length

Add functions to get/set the maximum supported BSSGP PDU size by the NS
layer.

IPv4 and IPv6 should not matter since we can just enable IP
fragmentation and send NS PDUs up to 2**16 + bytes. Frame relay does not
support fragmentation and this is the reason we need to be aware of the
maximum PDU size. Luckily with 1600 bytes the MTU in frame relay can hold a
regular IP packet including NS/BSSGP overhead.

On the NS layer this corresponds to the size of an NS SDU in NS-UNITDATA
(3GPP TS 48.016 Ch. 9.2.10)

Change-Id: I9bb82ead27366b7370c9ff968e03ca2113ec11f0
Related: OS#4889