diff --git a/ci-scripts/ci_ueinfra.yaml b/ci-scripts/ci_ueinfra.yaml
index 9ddee1d779..fc3cd03149 100644
--- a/ci-scripts/ci_ueinfra.yaml
+++ b/ci-scripts/ci_ueinfra.yaml
@@ -185,9 +185,12 @@ rfsim4g_enb_nos1:
 
 l2sim5g_ue:
   Host: localhost
+  AttachScript: docker start l2sim-oai-nr-ue0
+  DetachScript: docker stop l2sim-oai-nr-ue0
   NetworkScript: docker exec l2sim-oai-nr-ue0 ip a show dev oaitun_ue1
   CmdPrefix: docker exec l2sim-oai-nr-ue0
   IF: oaitun_ue1
+  MTU: 1500
 
 l2sim5g_ext_dn:
   Host: localhost
@@ -196,9 +199,12 @@ l2sim5g_ext_dn:
 
 l2sim4g_ue:
   Host: localhost
+  AttachScript: docker start l2sim4g-oai-lte-ue1
+  DetachScript: docker stop l2sim4g-oai-lte-ue1
   NetworkScript: docker exec l2sim4g-oai-lte-ue1 ip a show dev oaitun_ue1
   CmdPrefix: docker exec l2sim4g-oai-lte-ue1
   IF: oaitun_ue1
+  MTU: 1500
 
 l2sim4g_ext_dn:
   Host: localhost
diff --git a/ci-scripts/xml_files/container_4g_l2sim_tdd.xml b/ci-scripts/xml_files/container_4g_l2sim_tdd.xml
index 22f4a8be3a..4ce82b54aa 100644
--- a/ci-scripts/xml_files/container_4g_l2sim_tdd.xml
+++ b/ci-scripts/xml_files/container_4g_l2sim_tdd.xml
@@ -32,7 +32,7 @@
  000001
  000002
  000003
- 000011
+ 000004
  200000
  020001
  020002
@@ -82,10 +82,10 @@
                 <nb_healthy>10</nb_healthy>
         </testCase>
 
-        <testCase id="000011">
-                <class>IdleSleep</class>
-                <desc>Sleep</desc>
-                <idle_sleep_time_in_sec>10</idle_sleep_time_in_sec>
+        <testCase id="000004">
+                <class>Attach_UE</class>
+                <desc>Attach OAI UE</desc>
+                <id>l2sim4g_ue</id>
         </testCase>
 
         <testCase id="020001">
diff --git a/ci-scripts/xml_files/container_5g_l2sim_tdd.xml b/ci-scripts/xml_files/container_5g_l2sim_tdd.xml
index 6abadf2f4c..53a941a518 100644
--- a/ci-scripts/xml_files/container_5g_l2sim_tdd.xml
+++ b/ci-scripts/xml_files/container_5g_l2sim_tdd.xml
@@ -32,7 +32,7 @@
  000001
  000002
  000003
- 000011
+ 000004
  200000
  020001
  020002
@@ -80,10 +80,10 @@
                 <nb_healthy>9</nb_healthy>
         </testCase>
 
-        <testCase id="000011">
-                <class>IdleSleep</class>
-                <desc>Sleep</desc>
-                <idle_sleep_time_in_sec>10</idle_sleep_time_in_sec>
+        <testCase id="000004">
+                <class>Attach_UE</class>
+                <desc>Attach OAI UE</desc>
+                <id>l2sim5g_ue</id>
         </testCase>
 
         <testCase id="020001">