diff --git a/home.md b/home.md
index 12f0ba3..1d243fc 100644
--- a/home.md
+++ b/home.md
@@ -106,6 +106,7 @@
 			-   thinblock
 			-   get_xblocktx
 			-   xblocktx
+      -   [Node Handshake](/protocol/network/node-handshake)
     -   Simple Payment Verification (SPV)
 	    -   Bloom Filters
     -   Simple Ledger Protocol
diff --git a/protocol/network/messages.md b/protocol/network/messages.md
index b81b962..7fc3dd7 100644
--- a/protocol/network/messages.md
+++ b/protocol/network/messages.md
@@ -23,7 +23,7 @@ The P2P network has a variety of message types.  All P2P messages follow a binar
 
 ### Net Magic
 
-The `net magic` field is always `E3E1F3E8`.  Any message received that does not begin with the `net magic` should be ignored.
+The network identifier is used to separate blockchains and test networks. This reduces unnecessary load on peers, allowing them to rapidly ban nodes rather then forcing the peer to do a blockchain analysis before banning or disconnecting.  For Bitcoin Cash main net, the `net magic` field is always `E3E1F3E8`.  Any message received that does not begin with the `net magic` is invalid.
 
 The `net magic` is designed to be unlikely to occur in normal data--the characters are rarely used upper ASCII, are not valid as UTF-8, and produce a large 32-bit integer with any alignment.  `E3E1F3E8` is the ASCII string, "cash", with each byte's highest bit set.
 
diff --git a/protocol/network/node-handshake.md b/protocol/network/node-handshake.md
new file mode 100644
index 0000000..f0683e0
--- /dev/null
+++ b/protocol/network/node-handshake.md
@@ -0,0 +1 @@
+# Node Handshake
\ No newline at end of file