Service Request – 2

In this segment, we proceed to the second type of service request: the paging procedure which is initiated by the network.

Test 2 : Paging

• Before running the test make sure your 5GC nodes are started and RAN nodes are stopped.

deactivate-gnb

deactivate-ue

• Launching both the UE and the gNB, execute each command on its own terminal:

activate-gnb

activate-ue

• Open another SSH terminal & run:

switch-idle

• After the UE becomes in the IDLE state run the following command:

sudo tcpdump -i any -w ~/captures/paging_test.pcap

• Open the 4th terminal and run the ping to switch the UE from idle to connected state:

ping UE_IP

Replace the UE_IP with the IP of the UE allocated after a successful PDU session establishment in the subnet 10.60.0.0/24.

Hit Ctrl + C to stop the network capture in the first terminal and download the pcap file paging_test.pcap.

Paging call flow

After the paging request, the UE starts the UE-triggered procedure mentioned in the previous test.