diff --git a/Jupyter/Lab1/Lab 1 Part 1 ping.ipynb b/Jupyter/Lab1/Lab 1 Part 1 ping.ipynb
index a1fb620..9f11ca9 100644
--- a/Jupyter/Lab1/Lab 1 Part 1 ping.ipynb	
+++ b/Jupyter/Lab1/Lab 1 Part 1 ping.ipynb	
@@ -18,7 +18,7 @@
     "-- `git clone http://github.com/cucl-srg/L50` (Machine A)  \n",
     "-- `/root/L50/setup/mkdir1.sh <crsid>`. (Machine A)   \n",
     "-- Connect slf0 (A) to intl0 (B)  \n",
-    "<img src=\"alt_setup1.jpg\">  "
+    "<img src=\"alt_setup1.png\">  "
    ]
   },
   {
diff --git a/Jupyter/Lab1/Lab 1 Part 2 traceroute.ipynb b/Jupyter/Lab1/Lab 1 Part 2 traceroute.ipynb
index e5dc4cc..fe44f87 100644
--- a/Jupyter/Lab1/Lab 1 Part 2 traceroute.ipynb	
+++ b/Jupyter/Lab1/Lab 1 Part 2 traceroute.ipynb	
@@ -20,7 +20,7 @@
     "-- `git clone http://github.com/cucl-srg/L50` (Machine A)  \n",
     "-- `/root/L50/setup/mkdir1.sh <crsid>`. (Machine A)   \n",
     "-- Connect slf0 (A) to intl0 (B)  \n",
-    "<img src=\"alt_setup1.jpg\">  "
+    "<img src=\"alt_setup1.png\">  "
    ]
   },
   {
diff --git a/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb b/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb
index b0ae738..932a4a0 100644
--- a/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb	
+++ b/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb	
@@ -21,7 +21,7 @@
     "-- `git clone http://github.com/cucl-srg/L50` (Machine A)  \n",
     "-- `/root/L50/setup/mkdir1.sh <crsid>`. (Machine A)   \n",
     "-- Connect slf0 (A) to intl0 (B)  \n",
-    "<img src=\"alt_setup1.jpg\">  "
+    "<img src=\"alt_setup1.png\">  "
    ]
   },
   {
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new file mode 100644
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diff --git a/Jupyter/Lab2/Lab 2.1 Traffic capture using DAG.ipynb b/Jupyter/Lab2/Lab 2.1 Traffic capture using DAG.ipynb
index a526b70..6ff441e 100644
--- a/Jupyter/Lab2/Lab 2.1 Traffic capture using DAG.ipynb	
+++ b/Jupyter/Lab2/Lab 2.1 Traffic capture using DAG.ipynb	
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "In this experiment you will generate traffic using OSNT, an open source network tester, and capture it with DAG.  <img src=\"alt_setup2.1.jpg\">\n",
+    "In this experiment you will generate traffic using OSNT, an open source network tester, and capture it with DAG.  <img src=\"alt_setup2.1.png\">\n",
     "###### Setup:  \n",
     "\n",
     "First time use:   \n",
@@ -21,7 +21,7 @@
     "-- eval `ssh-agent -s` (Machine A, Note the \\` before ssh and after -s)    \n",
     "-- `ssh-add` (Machine A)    \n",
     "-- Connect nf0 (B,tx) to dag0 (A,rx) via the tap. Leave dag1 (A,rx) unconnected.      \n",
-    "<img src=\"tap2.1_disconnect.jpg\">"
+    "<img src=\"tap2.1_disconnect.png\">"
    ]
   },
   {
@@ -148,7 +148,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Connect dag1 to the tap. <img src=\"tap2.1_connect.jpg\" />"
+    "Connect dag1 to the tap. <img src=\"tap2.1_connect.png\" />"
    ]
   },
   {
diff --git a/Jupyter/Lab2/Lab 2.2 Traffic capture using tcpdump.ipynb b/Jupyter/Lab2/Lab 2.2 Traffic capture using tcpdump.ipynb
index 1aacd26..0b1f725 100644
--- a/Jupyter/Lab2/Lab 2.2 Traffic capture using tcpdump.ipynb	
+++ b/Jupyter/Lab2/Lab 2.2 Traffic capture using tcpdump.ipynb	
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "In this experiment you will generate traffic using OSNT and capture it with tcpdump.  <img src=\"alt_setup2.2.jpg\">\n",
+    "In this experiment you will generate traffic using OSNT and capture it with tcpdump.  <img src=\"alt_setup2.2.png\">\n",
     "#Setup:\n",
     "\n",
     "First time use:   \n",
@@ -24,7 +24,7 @@
     " \n",
     "\n",
     "-- Connect nf0 (B, tx) to slf0 (A, rx) and slf1 (A, rx) via the tap.  \n",
-    "<img src=\"tap2.2_connect.jpg\">"
+    "<img src=\"tap2.2_connect.png\">"
    ]
   },
   {
@@ -276,13 +276,13 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "In this experiment you will ping from NIC (Machine A) to NIC (Machine B). You will capture the requests and replies on both the DAG card (Machine A) and the NIC (Machine A) using tcpdump.  <img src=\"alt_setup2e.jpg\">\n",
+    "In this experiment you will ping from NIC (Machine A) to NIC (Machine B). You will capture the requests and replies on both the DAG card (Machine A) and the NIC (Machine A) using tcpdump.  <img src=\"alt_setup2e.png\">\n",
     "###### Setup:   \n",
     "-- `rmmod ixgbe && modprobe ixgbe allow_unsupported_sfp=1` (Machine B)      \n",
     "-- `dagload` (Machine A)    \n",
     "-- `ifconfig slf0 192.168.0.3` (Machine A)   \n",
     "-- `ifconfig intl0 192.168.0.4` (Machine B)   \n",
-    "-- Connect the tap as shown below. <img src=\"tap2e.jpg\"/>"
+    "-- Connect the tap as shown below. <img src=\"tap2e.png\"/>"
    ]
   },
   {
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diff --git a/Jupyter/Lab3/Lab 3.1 Traffic generation using OSNT.ipynb b/Jupyter/Lab3/Lab 3.1 Traffic generation using OSNT.ipynb
index 39724c5..7e868a7 100644
--- a/Jupyter/Lab3/Lab 3.1 Traffic generation using OSNT.ipynb	
+++ b/Jupyter/Lab3/Lab 3.1 Traffic generation using OSNT.ipynb	
@@ -13,7 +13,7 @@
     "-- Connect nf0 (B) to dag0 (A).     \n",
     "-- Connect nf1 (B) to nf2 (B).     \n",
     "-- `bash /root/<crsid>/L50/setup/mkdir3.sh <crsid>`. (Machine A)  \n",
-    "<img src=\"alt_setup3.1.jpg\">"
+    "<img src=\"alt_setup3.1.png\">"
    ]
   },
   {
diff --git a/Jupyter/Lab3/Lab 3.2 Traffic generation using tcpreplay.ipynb b/Jupyter/Lab3/Lab 3.2 Traffic generation using tcpreplay.ipynb
index 89df232..30294cd 100644
--- a/Jupyter/Lab3/Lab 3.2 Traffic generation using tcpreplay.ipynb	
+++ b/Jupyter/Lab3/Lab 3.2 Traffic generation using tcpreplay.ipynb	
@@ -13,7 +13,7 @@
     "-- `dagload`  (Machine A)  \n",
     "-- Connect intl0 (B) to dag0 (A).       \n",
     "-- Connect intl1 (B) to slf0 (A).       \n",
-    "<img src=\"alt_setup3.2.jpg\">"
+    "<img src=\"alt_setup3.2.png\">"
    ]
   },
   {
diff --git a/Jupyter/Lab3/Lab 3.3 Traffic generation using MoonGen.ipynb b/Jupyter/Lab3/Lab 3.3 Traffic generation using MoonGen.ipynb
index 6c7d843..430b04d 100644
--- a/Jupyter/Lab3/Lab 3.3 Traffic generation using MoonGen.ipynb	
+++ b/Jupyter/Lab3/Lab 3.3 Traffic generation using MoonGen.ipynb	
@@ -13,7 +13,7 @@
     "-- `ifconfig slf0 up` (Machine A)  \n",
     "-- Connect intl0 (B) to dag0 (A).     \n",
     "-- Connect intl1 (B) to slf0 (A).        \n",
-    "<img src=\"alt_setup3.3.jpg\">"
+    "<img src=\"alt_setup3.3.png\">"
    ]
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