Simple Confirmed Information for Mobile Network

This is a memo of environment information when briefly confirming the operation of some functions of each open source. Please note that it may not work depending on the environment. Also, please note that there may be cases where I have not been able to confirm operation due to my settings being incorrect.

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Sample Configurations and Miscellaneous for Mobile Network

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Table of Contents

• Version and Resource requirements
• Ping and iPerf3
  • For 5G
  • For 4G

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Version and Resource requirements

Open5GS

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
C-Plane	2.7.2+	13585a34e3d5505dd86d2cdf78c91829f3936851 2025.01.12	Ubuntu 24.04	1	2GB	20GB
UPF	2.7.2+	13585a34e3d5505dd86d2cdf78c91829f3936851 2025.01.12	Ubuntu 24.04	1	1GB	20GB

free5GC

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
C-Plane	3.4.4+	f9ebb11738a6efa0f6885299be0cc46aeeadecfd 2025.01.03 (Latest nightly build on 2025.01.14)	Ubuntu 24.04	1	2GB	20GB
SMF (ULCL)	1.2.6+	a83d0b07f2094e8a983a9523b1a9aa2b16279d96 2024.12.13	--	--	--	--
UPF	1.2.4+	88fbd8bb7b86761cbbcf1367acf2df7d81392ce3 2025.01.02	Ubuntu 24.04	1	1GB	10GB
gtp5g (UPF)	0.9.8	be7da934e4456a6dc2cc195d49e5334463b3c19e 2025.01.14	--	--	--	--

UPG-VPP

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
UPF	1.13.0	dfdf64000566d35955d7c180720ff66086bd3572 2024.03.25	Ubuntu 22.04	2	8GB	20GB

eUPF

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
UPF	0.6.4+	307b80aec8c7bc8fa376e03927c2f5c55a1fd687 2024.12.23	Ubuntu 24.04	1	2GB	20GB

UERANSIM

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
RAN & UE	3.2.6+	01e3785420ff7db34fa8723ff34189b8372cf02e 2024.12.10	Ubuntu 24.04	1	1GB	10GB

srsRAN_Project

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
RAN	24.10+	e5d5b44b92cf18d1bd1736da0148e5f9cce3721d 2024.12.03	Ubuntu 24.04	4	4GB	10GB

srsRAN_4G

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
RAN & UE	23.11+	ec29b0c1ff79cebcbe66caa6d6b90778261c42b8 2024.02.01	Ubuntu 22.04	1	2GB	10GB

PacketRusher

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
RAN & UE	20240521+	fd83fec05d964cab7a16fe0d55ff230dd6d9a77a 2024.11.27	Ubuntu 24.04	1	1GB	10GB
gtp5g (RAN)	0.9.8	be7da934e4456a6dc2cc195d49e5334463b3c19e 2025.01.14	--	--	--	--

Ping and iPerf3

Below are the results of confirming the operation of ping and iperf3 in my environment.

For 5G

UE	RAN	C-Plane	UPF	N3/N4/N6	Ping	iPerf3
UERANSIM	UERANSIM	Open5GS	Open5GS	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK [2]	OK [2]
			eUPF	Separate	OK	OK
		free5GC	free5GC	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK [4]	OK [4]
			eUPF	Separate	OK	OK
srsRAN_4G	srsRAN_Project	Open5GS	Open5GS	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK [1][2]	OK [1][2]
			eUPF	Separate	OK	OK
		free5GC	free5GC	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK [1][4]	OK [1][4]
			eUPF	Separate	OK	OK
PacketRusher	PacketRusher	Open5GS	Open5GS	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK [2]	OK [2]
			eUPF	Separate	OK	OK [3]
		free5GC	free5GC	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK [4]	OK [4]
			eUPF	Separate	OK	OK [3]

For 4G

UE	RAN	C-Plane	SGW-U	PGW-U (UPF)	S5u/Sxb/SGi	Ping	iPerf3
srsRAN_4G	srsRAN_4G	Open5GS	Open5GS	Open5GS	Separate	OK	OK
					Same	OK	OK
				UPG-VPP	Separate	OK [2]	OK [2]
				eUPF	Separate	OK	OK

1. UPG-VPP v1.13.0 does not support PDU Session container. Therefore, some gNodeBs such as srsRAN_Project, may not accept GTP traffic from UPG-VPP. In that case, please refer to this note. In these results, I applied this temporary patch and confirmed that it worked with the gNodeB of srsRAN_Project.

2. To connect Open5GS SMF to UPG-VPP, add the following parameter use_upg_vpp: true in smf.yaml. See here for the reason.

   smf.yaml

   global:
     parameter:
       use_upg_vpp: true
   

3. When connecting PacketRusher to eUPF and using iperf3, for avoiding IP fragmentation, reduce the MTU of the N6 interface of the Data Network Gateway to 1450 bytes before the downlink packet reaches the N6 interface of the eUPF. For example, if the N6 interface of the Data Network Gateway is ens20, set it as follows.

   # ip link set ens20 mtu 1450
   

4. To connect free5GC SMF to UPG-VPP, add the following parameter nwInstFqdnEncoding: true in smfcfg.yaml. See here for the reason.

   smfcfg.yaml

   configuration:
     nwInstFqdnEncoding: true