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mme: Use LAC from SGSN with most significat bit set to 0

According to 3GPP TS 23.003 sec 2.8.2.2.2, LACs from GERAN are
configured with MSB 0 in order to differentiate it from EUTRAN ones.
This is used by MMEs to figure out if the peer is an SGSN, based on
the the LAC mapped into MME group ID in GUTI .

Change-Id: Iaf89228f6f026e04d5f583211959025e6d8d4a1d
---
M mme/MME_Tests.ttcn
1 file changed, 15 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/30/35430/1

diff --git a/mme/MME_Tests.ttcn b/mme/MME_Tests.ttcn
index 6a375e0..7d0573e 100644
--- a/mme/MME_Tests.ttcn
+++ b/mme/MME_Tests.ttcn
@@ -196,7 +196,7 @@
 	integer mp_gn_remote_port := 2123;
 	hexstring mp_gn_local_mcc := '262'H;
 	hexstring mp_gn_local_mnc := 'f42'H;
-	uint16_t mp_gn_local_lac := 43690;
+	uint16_t mp_gn_local_lac := 39594;
 	uint8_t mp_gn_local_rac := 187;
 	uint16_t mp_gn_local_ci := 1223;
 

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