Update: change the default values for the maps

etc/config.yaml

@@ -37,7 +37,7 @@ log_level:
 
 # If you enable registration, the other NFs will use the NRF discovery mechanism
 register_nf:
-  general: yes
+  general: no
 
 http_version: 2
 
@@ -229,61 +229,42 @@ upf:
   support_features:
     enable_bpf_datapath: yes    # If "on": BPF is used as datapath else simpleswitch is used, DEFAULT= off
     enable_qos: yes
-    
     # OAI UPF EBPF MAP SIZES Configuration File
     # These configuration map entries define key parameters for optimizing memory allocation and tuning the UPF. 
     # The values set in this file directly impact the size of eBPF maps used for packet processing.
     # Configuration Parameters: Each parameter in this file controls a specific aspect of UPF behavior.
-
     # 1. Network Interface Limits
-
-    #     max_upf_interfaces (Default: 8)
+    #     max_upf_interfaces (Default: 3)
     #         Specifies the maximum number of network interfaces that UPF can manage.
     #         Example: Physical/virtual interfaces for GTP-U traffic.
 
-    #     max_upf_redirect_interfaces (Default: 4)
+    #     max_upf_redirect_interfaces (Default: 2)
     #         Defines the maximum number of interfaces used for traffic redirection.
     #         Example: Used in PDRs for forwarding packets to specific egress interfaces.
-
-    max_upf_interfaces: 8
-    max_upf_redirect_interfaces: 4
-
-
-
+    max_upf_interfaces: 3
+    max_upf_redirect_interfaces: 2
     # 2. Session and Rule Limits
-
     #     max_pdu_session (Default: 10,000)
     #         Determines the maximum number of concurrent PDU sessions that UPF can handle.
     #         Affects the memory allocation for session-related eBPF maps.
-
     #     max_pdrs_per_pdu_session (Default: 8)
     #         Defines the maximum number of Packet Detection Rules (PDRs) that can be applied per PDU session.
     #         PDRs dictate how packets are processed, forwarded, or dropped.
-
     #     max_qos_flows_per_pdu_session (Default: 8)
     #         Sets the maximum number of QoS flows that a single PDU session can manage.
     #         Impacts QoS-related eBPF maps (e.g., shaping, policing).
-
     #     max_sdf_filters_per_pdu_session (Default: 8)
     #         Specifies the maximum number of Service Data Flow (SDF) filters per session.
     #         SDF filters define how traffic is classified within a QoS flow.
-
-    max_pdu_session: 10000
+    max_pdu_session: 10000 
     max_pdrs_per_pdu_session: 8
-    max_qos_flows_per_pdu_session: 8
+    #max_qos_flows_per_pdu_session: 8
     max_sdf_filters_per_pdu_session: 8
-
-
-
-
     # 3. ARP Table Limit
-
-    #     max_arp_entries (Default: 4)
+    #     max_arp_entries (Default: 2)
     #         Limits the number of ARP table entries stored in eBPF maps.
     #         Used for resolving MAC addresses in the UPF forwarding path.
-
-    max_arp_entries: 1572
-
+    max_arp_entries: 2
   remote_n6_gw: oai-ext-dn
   upf_info:
     sNssaiUpfInfoList:

src/upf_app/app/upf_config.hpp

@@ -180,13 +180,13 @@ class upf_config {
     enable_5g_features              = true;
     enable_bpf_datapath             = false;
     enable_qos                      = false;
-    max_upf_interfaces              = 8;
-    max_upf_redirect_interfaces     = 4;
+    max_upf_interfaces              = 3;
+    max_upf_redirect_interfaces     = 2;
     max_pdu_session                 = 10000;
     max_pdrs_per_pdu_session        = 8;
     max_qos_flows_per_pdu_session   = 8;
     max_sdf_filters_per_pdu_session = 8;
-    max_arp_entries                 = 1572;
+    max_arp_entries                 = 2;
     register_nrf                    = false;
     upf_info                        = {};
 

src/upf_app/app/upf_config_yaml.cpp

@@ -220,7 +220,7 @@ upf::upf(
     const std::map<std::string, upf_interface_config>& interfaces)
     : nf(name, host, sbi),
       m_upf_support_features(
-          false, false, 8, 4, 10000, 8, 8, 8, 1572, false, false),
+          false, false, 3, 2, 10000, 8, 8, 8, 2, false, false),
       m_interfaces(interfaces) {
   model::nrf::SnssaiUpfInfoItem item;
   item.setSNssai(DEFAULT_SNSSAI);