Osmocom Home NodeB Gateway, for attaching femtocells to the 3G CN (OsmoMSC, OsmoSGSN) https://osmocom.org/projects/osmohnbgw
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It is reported that a third-party SGSN is rejecting SCCP CR when the SCCP message part exceeds a certain length. The solution is to first send an SCCP CR without payload, and send the payload in a DT later. Add config option hnbgw sccp cr max-payload-len <0-999999> If the RANAP payload surpasses the given length, osmo-hnbgw will first send an SCCP CR without payload, cache the RANAP payload, and put that in an SCCP DT once the SCCP CC is received. The original idea was to limit the size of the entire SCCP part of the message, but I'm currently not sure how to determine that without copying much of the osmo_sccp code. I figured using a limit on the RANAP payload is sufficient. To avoid the error with above third-party SGSN, the easy solution is to set max-payload-len to 0, so that we always get a separate SCCP CR without payload. Related: SYS#5968 Related: I827e081eaacfb8e76684ed1560603e6c8f896c38 (osmo-ttcn3-hacks) Change-Id: If0c5c0a76e5230bf22871f527dcb2dbdf34d7328
|4 weeks ago|
|osmocom||4 weeks ago|
|Makefile.am||6 months ago|