Open Ports and Services

The SMF uses different ports for communication purposes. The following table describes the default open ports and the associated services.

Open Ports and Services
Port Service Usage
9003 gRPC This is the default gRPC port for all the application pods that aren’t using the host network.
8080 TCP/HTTP This is the default prometheus server port for all the application pods that aren’t using the host network.
8090 TCP/HTTP SMF uses the HTTP2 REST endpoint for the SBI interface endpoint.
2024 SSH SMF Ops Center uses this port to provide the ConfD CLI access.
2379-2380 TCP SMF uses the etcd server client endpoint to store and retrieve system data.
8882 gRPC This is the CDL session DB endpoint used by all other application pods.
8890 gRPC Application REST endpoint uses this port to receive the call-back timer or notification from the CDL.
8883 gRPC This is the TLS - CDL session DB endpoint used by all other application pods.
2123 UDP SMF uses the 3GPP standard GTP-C port for the signaling of GTP-C protocol messages (control path).
2152 UDP SMF uses the 3GPP standard GTP-U port for the signaling of GTP-U protocol messages (data path).
8805 UDP SMF uses the 3GPP standard PFCP port for the signaling of PFCP protocol messages.
8765 TCP6 SMF uses this port as the readiness probe port for the UDP proxy pod.
7179, 7189 TCP/HTTP Pprof Server endpoint serves runtime profiling data from GTP-C endpoint interface-specific pods, such as S11 and S5.
23300, 23310 TCP/gRPC SMF uses the TLS GRPC IPC server endpoint for the GTP-C endpoint interface-specific pods.
9005, 9015 TCP/gRPC Non-TLS GRPC IPC server port for the GTP-C endpoint interface-specific pods.
27000, 27010 TCP SMF uses the KeepAliveD endpoint for GTP-C endpoint interface-specific pods.
7279, 7289 TCP This port is the admin endpoint internal port that is used in the GTP-C endpoint interface-specific pods. This port is used for liveness and readiness probe.
7079, 7089 TCP/HTTP SMF uses the prometheus server port for the GTP-C endpoint interface-specific pods.
8083 TCP/HTTP SMF uses the prometheus server port for the protocol pod.
9006 TCP/gRPC SMF uses the non-TLS GRPC IPC Server endpoint for the protocol pod.
8003 TCP/HTTP SMF uses the prometheus server port for the protocol pod.
23100 TCP/gRPC SMF uses the TLS GRPC IPC server endpoint for the protocol pod.
7679 TCP/HTTP The Pprof server endpoint serves runtime profiling data from the protocol pod.
7879 TCP This port is the admin endpoint internal port that is used in the protocol pod. This port is used for the liveness and readiness probe.
27500 TCP SMF uses this KeepAliveD endpoint for the protocol pod.
28000 TCP SMF uses this KeepAliveD endpoint for the UDP proxy pod.
23200 TCP/gRPC SMF uses the TLS GRPC IPC server endpoint for the UDP proxy pod.
9004 TCP/gRPC Non-TLS GRPC IPC server endpoint for the UDP proxy pod.
7879 TCP This port is the admin endpoint internal port that is used in the UDP proxy pod. This port is used for the liveness and readiness probe.
8850 TCP/HTTP The Pprof server endpoint serves runtime profiling data from the UDP proxy pod.

In addition to the preceding ports, SMF uses the ports that are destined for SMI for routing information between hosts. For information on SMI ports, see the Ultra Cloud Core Subscriber Microservices Infrastructure Operations Guide.