Unable to Connect to AMF of open5Gs core using srsran

[amitpalkar]

Hi,
I am running a dockerized version of open5GS using the command ( sudo ./apps/gnb/gnb -c ../configs/gnb_zmq.yml) When i run the core and gnode i get the below error. Can someone let me know how to proceed? Attaching my config files.
amf.zip
Would appreciate response.
Regards,
Amit Palkar

==================================================================================

--== srsRAN gNB (commit f3ed07a) ==--

Connecting to AMF on 10.53.1.2:38412
Failed to connect SCTP socket to 10.53.1.2:38412. error="Connection timed out" timeout=1387ms
srsGNB ERROR: Failed to create SCTP gateway

==================================================================================

open5gs_5gc | 06/11 12:37:48.630: [sbi] INFO: NF Service [namf-comm] (../lib/sbi/context.c:1812)
open5gs_5gc | 06/11 12:37:48.630: [sbi] INFO: nghttp2_server() [http://10.53.1.2]:7777 (../lib/sbi/nghttp2-server.c:414)
open5gs_5gc | 06/11 12:37:48.630: [amf] INFO: ngap_server() [10.53.1.2]:38412 (../src/amf/ngap-sctp.c:61)
open5gs_5gc | 06/11 12:37:48.630: [smf] INFO: PFCP associated [127.0.0.7]:8805 (../src/smf/pfcp-sm.c:196)
open5gs_5gc | 06/11 12:37:48.630: [sctp] INFO: AMF initialize...done (../src/amf/app.c:33)

[pgawlowicz]

you changed the AMF port to 7777, so you also need to change it in gnb config: amf.port, see https://docs.srsran.com/projects/project/en/latest/user_manuals/source/config_ref.html

[pgawlowicz]

Use a port from the range [20000 - 40000], both in gnb and open5gs configs.

[amitpalkar]

Hi @pgawlowicz thanks a lot. Tried using the port number 38412 instead of 7777 in both the gnb and open5gs configs as given below. But i am facing the same error. Below are the configurations for open5gs and gnb yml files.

open5gs config.xml

amf:
sbi:
server:
#- address: 127.0.0.5
- address: ${OPEN5GS_IP}
#port: 7777
port: 38412
client:
scp:
- uri: http://127.0.0.22:7777

gnb_zmq.yml

amf:
addr: 10.53.1.2 # The address or hostname of the AMF.
bind_addr: 10.53.1.1 # A local IP that the gNB binds to for>
port: 38412 # Port number on AMF.

[amitpalkar]

ee210469@pcz-mmalab-2:~/work/opensource_ran/srsran/5G/srsRAN_Project/configs$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.1.115.1 0.0.0.0 UG 100 0 0 eno1
10.1.115.0 0.0.0.0 255.255.255.0 U 100 0 0 eno1
10.45.0.0 10.53.1.2 255.255.0.0 UG 0 0 0 br-d32e126b4140
10.53.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br-d32e126b4140
10.53.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br-f7bb8ae0ec84
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eno1
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
172.19.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br-6aac9306bce6
172.19.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br-069322a98f54

Above is output of my route table

[amitpalkar]

br-d32e126b4140: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 10.53.1.1 netmask 255.255.255.0 broadcast 10.53.1.255
inet6 fe80::42:adff:fe59:b9a prefixlen 64 scopeid 0x20
ether 02:42:ad:59:0b:9a txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 101 bytes 19075 (19.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

br-f7bb8ae0ec84: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 10.53.1.1 netmask 255.255.255.0 broadcast 10.53.1.255
inet6 fe80::42:86ff:fe94:32ad prefixlen 64 scopeid 0x20
ether 02:42:86:94:32:ad txqueuelen 0 (Ethernet)
RX packets 7 bytes 532 (532.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 81 bytes 8762 (8.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255
inet6 fe80::42:a1ff:fe33:9076 prefixlen 64 scopeid 0x20
ether 02:42:a1:33:90:76 txqueuelen 0 (Ethernet)
RX packets 387297 bytes 22371689 (22.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 464458 bytes 2151625801 (2.1 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.1.115.50 netmask 255.255.255.0 broadcast 10.1.115.255
inet6 fe80::b782:63f6:e248:a839 prefixlen 64 scopeid 0x20
ether 6c:4b:90:c6:50:79 txqueuelen 1000 (Ethernet)
RX packets 8293588 bytes 8944724519 (8.9 GB)
RX errors 0 dropped 32873 overruns 0 frame 0
TX packets 6669416 bytes 6372563280 (6.3 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17 memory 0xb1200000-b1220000

Above is my ifconfig command output

[pgawlowicz]

it seems that you have two bridge interfaces using the same IP address 10.53.1.1, and hence there are two entries for 10.53.1.0 in your routing table. You should remove the interface that is not used.