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.

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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	2.7.1+	2a4d8db72eac25dcd29ed313e82dcc347cca7d43 2024.05.25	Ubuntu 24.04	1	2GB	20GB
UPF	2.7.1+	2a4d8db72eac25dcd29ed313e82dcc347cca7d43 2024.05.25	Ubuntu 24.04	1	1GB	20GB

free5GC

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
C-Plane	3.4.1+	b0abf3dbe2c7571db6fc938b4107c034357bf080 2024.04.24	Ubuntu 24.04	1	2GB	20GB
UPF	1.2.2+	922281ba58b6ca42d73be218671c8feae3658420 2024.05.11	Ubuntu 24.04	1	1GB	20GB
gtp5g (UPF)	0.8.9	6657a0a2084486f499d951d169fb3c0232f6b454 2024.05.03	--	--	--	--

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+	ec283f5c857cd81a05c47d643c49c84adc4df41f 2024.05.07	Ubuntu 24.04	1	2GB	20GB

UERANSIM

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
RAN & UE	3.2.6+	85a0fbfdd166da84c39ed5b4a5435afd40725878 2024.04.17	Ubuntu 24.04	1	1GB	10GB

srsRAN_Project

Role	Version	Commit & Date	OS	CPU (Min)	Mem (Min)	HDD (Min)
RAN	24.04+	c33cacba7d940e734ac7bad08935cbc35578fad9 2024.06.10	Ubuntu 24.04	2	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	2bbcc24fa2ebf14335d6eec8737291f2205b91a1 2024.05.19	Ubuntu 24.04	1	1GB	10GB
gtp5g (RAN)	0.8.6	d8818ee80a9a004ea0fac3715415395810666921 2024.02.18	--	--	--	--
	0.8.9 [1]	6657a0a2084486f499d951d169fb3c0232f6b454 2024.05.03	--	--	--	--

1. In gtp5g v0.8.7 and later, GTP-U Sequence Number is enabled by default. In this case, eUPF will probably not be able to process GTP-U packets correctly. Therefore, if connecting to eUPF, please disable GTP-U Sequence Number of gtp5g used by PacketRusher as follows.

   # echo 0 > /proc/gtp5g/seq
   

   Also, UPF performance measurements using iperf3 tended to be better when GTP-U Sequence Number was disabled. (e.g. UPG-VPP)

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	OK
			eUPF	Separate	OK	OK
		free5GC	free5GC	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK	OK
			eUPF	Separate	OK	OK
srsRAN_4G	srsRAN_Project	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 [2]	OK [2]
			eUPF	Separate	OK	OK [3]
PacketRusher	PacketRusher	Open5GS	Open5GS	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK	OK
			eUPF	Separate	OK [1]	OK [1]
		free5GC	free5GC	Separate	OK	OK
				Same	OK	OK
			UPG-VPP	Separate	OK	OK
			eUPF	Separate	OK [1]	OK [1]

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	OK
				eUPF	Separate	OK	OK [3]

2. 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.

3. To avoid IP fragmentation, change the MTU of both N6 or SGi interface of eUPF and tun_srsue interface of srsRAN_4G UE as follows.

   For N6 or SGi interface of eUPF:

   # ip link set <N6 or SGi interface of eUPF> mtu 1450
   

   For tun_srsue interface of srsRAN_4G UE:

   # ip link set tun_srsue mtu 1400