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Load balancing implementation for vEPC and 5G Core

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LB-vEPC-5GCore

Load balancing implementation for vEPC and 5G Core

Repo show Load balancing with DSR IPIP .

HSS and PCRF are not available.

Please , firstly , try to read this repo https://bitbucket.org/infinitydon/opensource-5g-core-service-mesh/src/main/ to deploy full 5G Core

Those entities of 5GCore and vEPCrun using kubernetes

Run vEPC network by typing :

cd LB-VEPC-5GCORE/vEPC-service/
helm upgrade --install  core4g -n open5gs .

vEPC use static IPV4 addresses , you cancheck it by typing

kubectl get pods -n open5gs -owide

assuming that all pods are running well and you want to mount NAT LB for exemple. So we will deploy it using docker container

Finally , you can look at the log inside srsLTE_LB with full NAT pods

docker run -it --privileged --name mme-lb ubuntu:focal bash

inside de container:

apt-get update && apt-get install -y iptables ipvsadm iproute2 inetutils-ping fping tcpdump
sysctl -w net.ipv4.vs.conntrack=1
iptables -t nat -A POSTROUTING -o eth0 --dst 10.240.233.72 -m ipvs --ipvs --vaddr 172.17.0.6 --vport 38412 --vmethod masq -j SNAT --to-source 172.17.0.6
iptables -t nat -A POSTROUTING -o eth0 --dst 10.240.233.76 -m ipvs --ipvs --vaddr 172.17.0.6 --vport 38412 --vmethod masq -j SNAT --to-source 172.17.0.6
ipvsadm --clear
ipvsadm -A --sctp-service 172.17.0.6:38412 -s wlc
ipvsadm -a --sctp-service 172.17.0.6:38412 -r 10.240.233.72:38412 -m -w 10
ipvsadm -a --sctp-service 172.17.0.6:38412 -r 10.240.233.76:38412 -m -w 30
watch ipvsadm -ln --stats

Knowing that 172.17.0.2 is the IP address of the Load balancer 10.240.233.73 , 10.240.233.74 is the IP address of the 2 MMEs

You can capture all packet inside container by :

tcpdump -nnni eth0 sctp port 36412

Trying to generate a lot of UEs for example , we should go inside the UEran pod and :

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