Added max_s1_retries parameter

lib/include/srsran/interfaces/enb_s1ap_interfaces.h

@@ -32,6 +32,7 @@ struct s1ap_args_t {
   std::string enb_name;
   uint32_t    ts1_reloc_prep_timeout;
   uint32_t    ts1_reloc_overall_timeout;
+  uint32_t    max_s1_setup_retries;
 };
 
 // S1AP interface for RRC

srsenb/enb.conf.example

@@ -359,8 +359,7 @@ enable = false
 # gtpu_tunnel_timeout:  Time that GTPU takes to release indirect forwarding tunnel since the last received GTPU PDU (0 for no timer)
 # ts1_reloc_prep_timeout: S1AP TS 36.413 TS1RelocPrep Expiry Timeout value in milliseconds
 # ts1_reloc_overall_timeout: S1AP TS 36.413 TS1RelocOverall Expiry Timeout value in milliseconds
-# rlf_release_timer_ms: Time taken by eNB to release UE context after it detects a RLF
+# s1_setup_max_retries: Maximum amount of retries to setup the S1AP connection. If this value is exceeded, an alarm is written to the log
-# rlf_min_ul_snr_estim: SNR threshold in dB below which the enb is notified with RLF ko
 #
 #####################################################################
 [expert]
@@ -397,3 +396,4 @@ enable = false
 #ts1_reloc_overall_timeout = 10000
 #rlf_release_timer_ms = 4000
 #rlf_min_ul_snr_estim = -2
+#s1_setup_max_retries = 12

srsenb/src/main.cc

@@ -247,6 +247,7 @@ void parse_args(all_args_t* args, int argc, char* argv[])
     ("expert.ts1_reloc_prep_timeout", bpo::value<uint32_t>(&args->stack.s1ap.ts1_reloc_prep_timeout)->default_value(10000), "S1AP TS 36.413 TS1RelocPrep Expiry Timeout value in milliseconds.")
     ("expert.ts1_reloc_overall_timeout", bpo::value<uint32_t>(&args->stack.s1ap.ts1_reloc_overall_timeout)->default_value(10000), "S1AP TS 36.413 TS1RelocOverall Expiry Timeout value in milliseconds.")
     ("expert.rlf_min_ul_snr_estim", bpo::value<int>(&args->stack.mac.rlf_min_ul_snr_estim)->default_value(-2), "SNR threshold in dB below which the eNB is notified with rlf ko.")
+    ("expert.max_s1_setup_retries", bpo::value<uint32_t>(&args->stack.s1ap.max_s1_setup_retries)->default_value(12), "Max S1 setup retries")
 
     // eMBMS section
     ("embms.enable", bpo::value<bool>(&args->stack.embms.enable)->default_value(false), "Enables MBMS in the eNB")