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authorHarald Welte <laforge@gnumonks.org>2018-07-01 21:04:45 +0200
committerHarald Welte <laforge@gnumonks.org>2019-02-26 12:18:30 +0100
commit047f3872f511353e894659719a6c5346249bca40 (patch)
treee719164186b93e96cfca6daa86b95f7679bbe669 /tests/fsm/fsm_test.err
parent35042a29197bd086a545976e5fa38d01c434f8ac (diff)
NS: Add support for GPRS NS IP Sub-Network-Service (SNS)
The NS implementation part of the Gb implementation libosmogb so far implemented a rather classic dialect of Gb, with lots of heritage to FR (Frame Relay) transports. At least since Release 6 of the NS specification, there's an IP Sub-Network Service (SNS), which * permits for dynamic configuration of IP endpoints and their NS-VCs * abandons the concept of a NSVCI on IP transport * forbids the use of RESET/BLOCK/UNBLOCK procedures on IP transport This commit introduces BSS-side IP-SNS support to libosmogb in a minimally invasive way. It adds a corresponding SNS FSM to each NS instance, and implements the new SIZE/CONFIG/ADD/DELETE/CHANGE_WEIGHT procedures very closely aligned with the spec. In order to use the SNS flavor (rather than the classic one), a BSS implementation should use gprs_ns_nsip_connect_sns() instead of the existing gprs_ns_nsip_connect(). This implementation comes with a set of TTCN-3 tests in PCU_Tests_RAW_SNS.ttcn, see Change-ID I0fe3d4579960bab0494c294ec7ab8032feed4fb2 of osmo-ttcn3-hacks.git Closes: OS#3372 Closes: OS#3617 Change-Id: I84786c3b43a8ae34ef3b3ba84b33c90042d234ea
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