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--- check_1_1_sp_comms [2021/04/08 17:00] – [Introduction] walkeradmin
+++ check_1_1_sp_comms [2023/03/09 22:35] (current) – external edit 127.0.0.1
@@ Line 86: / Line 86: @@
 :58:14.760368 IP sp02.15771 > 235.2.127.254.15771: UDP, length 209
 </file>
+\\
+Unfortunately both outputs look the same, but if we add -A to the command line, so:
+\\
+\\
+tcpdump -i eth0 port 15771 -Q out -A
+\\
+\\
+We see the following:
+\\
+<file>
+From the MAIN Mux
+tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
+listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
+:02:20.064957 IP sp01.15771 > 235.2.127.254.15771: UDP, length 207
+E....6@.@..W........=.=....]{
+    "uid": "SP01",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895607872,
+    "removed": false,
+    "privateData": {
+        "oldest": true,
+        "transmitting": true
+    },
+    "cc": 134
+}
+:02:20.565987 IP sp01.15771 > 235.2.127.254.15771: UDP, length 207
+E....]@.@..0........=.=....]{
+    "uid": "SP01",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895607872,
+    "removed": false,
+    "privateData": {
+        "oldest": true,
+        "transmitting": true
+    },
+    "cc": 135
+}
+:02:21.066788 IP sp01.15771 > 235.2.127.254.15771: UDP, length 207
+E... .@.@...........=.=....]{
+    "uid": "SP01",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895607872,
+    "removed": false,
+    "privateData": {
+        "oldest": true,
+        "transmitting": true
+    },
+    "cc": 136
+}
+:02:21.566860 IP sp01.15771 > 235.2.127.254.15771: UDP, length 207
+E...!.@.@...........=.=....]{
+    "uid": "SP01",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895607872,
+    "removed": false,
+    "privateData": {
+        "oldest": true,
+        "transmitting": true
+    },
+    "cc": 137
+}
+</file>
+\\
+<file>
+From the BACKUP Mux
+tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
+listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
+:02:20.027155 IP sp02.15771 > 235.2.127.254.15771: UDP, length 209
+E...j"@.@..h........=.=....`{
+    "uid": "SP02",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895627134,
+    "removed": false,
+    "privateData": {
+        "oldest": false,
+        "transmitting": false
+    },
+    "cc": 135
+}
+:02:20.527548 IP sp02.15771 > 235.2.127.254.15771: UDP, length 209
+E...j.@.@...........=.=....`{
+    "uid": "SP02",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895627134,
+    "removed": false,
+    "privateData": {
+        "oldest": false,
+        "transmitting": false
+    },
+    "cc": 136
+}
+:02:21.028483 IP sp02.15771 > 235.2.127.254.15771: UDP, length 209
+E...k.@.@...........=.=....`{
+    "uid": "SP02",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895627134,
+    "removed": false,
+    "privateData": {
+        "oldest": false,
+        "transmitting": false
+    },
+    "cc": 137
+}
+:02:21.528890 IP sp02.15771 > 235.2.127.254.15771: UDP, length 209
+E...mZ@.@..0........=.=....`{
+    "uid": "SP02",
+    "groupName": "mux_mux_52_1_1",
+    "startTime": 1617895627134,
+    "removed": false,
+    "privateData": {
+        "oldest": false,
+        "transmitting": false
+    },
+    "cc": 138
+}
+</file>