typo fix: UNKOWN -> UNKNOWN

Change-Id: I008a4d7ad7160d1f07e7ceef712a5318a9368308
Signed-off-by: Andrey "Zed" Zaikin <zed.0xff@gmail.com>
diff --git a/src/vlibmemory/vlib_api_cli.c b/src/vlibmemory/vlib_api_cli.c
index d4d7c1c..ccdf3fb 100644
--- a/src/vlibmemory/vlib_api_cli.c
+++ b/src/vlibmemory/vlib_api_cli.c
@@ -721,7 +721,7 @@
 	    vlib_cli_output (vm,
 			     "Error while writing start of buffer trace to file\n");
 	  else if (rv < 0)
-	    vlib_cli_output (vm, "Unkown error while saving: %d", rv);
+	    vlib_cli_output (vm, "Unknown error while saving: %d", rv);
 	  else
 	    vlib_cli_output (vm, "API trace saved to %s\n", chroot_filename);
 	  vec_free (chroot_filename);
diff --git a/src/vnet/l2/l2_bd.c b/src/vnet/l2/l2_bd.c
index 7c8aef1..7c3e70c 100644
--- a/src/vnet/l2/l2_bd.c
+++ b/src/vnet/l2/l2_bd.c
@@ -521,7 +521,7 @@
 /* *INDENT-ON* */
 
 /**
-    Set bridge-domain unkown-unicast flood enable/disable.
+    Set bridge-domain unknown-unicast flood enable/disable.
     The CLI format is:
     set bridge-domain uu-flood <bd_index> [disable]
 */
diff --git a/src/vnet/mpls/mpls.c b/src/vnet/mpls/mpls.c
index be72d3f..aaaba39 100644
--- a/src/vnet/mpls/mpls.c
+++ b/src/vnet/mpls/mpls.c
@@ -274,7 +274,7 @@
 	;
       else
       {
-          error = clib_error_return (0, "unkown input: %U",
+          error = clib_error_return (0, "unknown input: %U",
                                      format_unformat_error, line_input);
           goto done;
       }
diff --git a/src/vnet/sctp/sctp_error.def b/src/vnet/sctp/sctp_error.def
index 1f6e275..7326301 100644
--- a/src/vnet/sctp/sctp_error.def
+++ b/src/vnet/sctp/sctp_error.def
@@ -44,8 +44,8 @@
 sctp_error (FIFO_FULL, "Packets dropped for lack of rx fifo space") 
 sctp_error (PARTIALLY_ENQUEUED, "Packets partially pushed into rx fifo") 
 sctp_error (EVENT_FIFO_FULL, "Events not sent for lack of event fifo space") 
-sctp_error (UNKOWN_CHUNK, "Unrecognized / unknown chunk or chunk-state mismatch")
+sctp_error (UNKNOWN_CHUNK, "Unrecognized / unknown chunk or chunk-state mismatch")
 sctp_error (BUNDLING_VIOLATION, "Bundling not allowed")
 sctp_error (PUNT, "Packets punted")
 sctp_error (FILTERED, "Packets filtered")
-sctp_error (MAX_CONNECTIONS, "Reached max supported subconnection")
\ No newline at end of file
+sctp_error (MAX_CONNECTIONS, "Reached max supported subconnection")
diff --git a/src/vnet/sctp/sctp_input.c b/src/vnet/sctp/sctp_input.c
index ff79840..bca34f1 100644
--- a/src/vnet/sctp/sctp_input.c
+++ b/src/vnet/sctp/sctp_input.c
@@ -1060,7 +1060,7 @@
 	       * hence we should never get to the "default" case below.
 	       */
 	    default:
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = sctp_next_drop (is_ip4);
 	      goto drop;
 	    }
@@ -1400,7 +1400,7 @@
 	       * hence we should never get to the "default" case below.
 	       */
 	    default:
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = sctp_next_drop (is_ip4);
 	      goto drop;
 	    }
@@ -1709,7 +1709,7 @@
 		 child_conn->sub_conn[SCTP_PRIMARY_PATH_IDX].
 		 connection.c_index, sctp_chunk_to_string (chunk_type));
 
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = sctp_next_drop (is_ip4);
 	      goto drop;
 	    }
@@ -1917,7 +1917,7 @@
 	       * hence we should never get to the "default" case below.
 	       */
 	    default:
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = sctp_next_drop (is_ip4);
 	      goto done;
 	    }
@@ -2188,7 +2188,7 @@
 	      sctp_prepare_operation_error (sctp_conn, SCTP_PRIMARY_PATH_IDX,
 					    b0, UNRECOGNIZED_CHUNK_TYPE);
 
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = sctp_next_output (is_ip4);
 	      goto done;
 	    }
diff --git a/src/vnet/sctp/sctp_output.c b/src/vnet/sctp/sctp_output.c
index e2738e9..a65f166 100644
--- a/src/vnet/sctp/sctp_output.c
+++ b/src/vnet/sctp/sctp_output.c
@@ -1702,7 +1702,7 @@
 	    {
 	      clib_warning
 		("Trying to send an unrecognized chunk... something is really bad.");
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = SCTP_OUTPUT_NEXT_DROP;
 	      goto done;
 	    }
@@ -1735,7 +1735,7 @@
 				      connection.rmt_port,
 				      sctp_hdr->dst_port);
 
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = SCTP_OUTPUT_NEXT_DROP;
 	      goto done;
 	    }
@@ -1758,7 +1758,7 @@
 		 sctp_chunk_to_string (chunk_type),
 		 sctp_state_to_string (sctp_conn->state));
 
-	      error0 = SCTP_ERROR_UNKOWN_CHUNK;
+	      error0 = SCTP_ERROR_UNKNOWN_CHUNK;
 	      next0 = SCTP_OUTPUT_NEXT_DROP;
 	      goto done;
 
diff --git a/src/vpp-api/vom/interface.hpp b/src/vpp-api/vom/interface.hpp
index 29903b5..f6708b3 100644
--- a/src/vpp-api/vom/interface.hpp
+++ b/src/vpp-api/vom/interface.hpp
@@ -67,7 +67,7 @@
   struct type_t : enum_base<type_t>
   {
     /**
-     * Unkown type
+     * Unknown type
      */
     const static type_t UNKNOWN;
     /**
diff --git a/test/test_dvr.py b/test/test_dvr.py
index c0ce32c..5bdc3b2 100644
--- a/test/test_dvr.py
+++ b/test/test_dvr.py
@@ -321,7 +321,7 @@
         route_2.add_vpp_config()
 
         #
-        # packets are dropped because bridge does not flood unkown unicast
+        # packets are dropped because bridge does not flood unknown unicast
         #
         self.send_and_assert_no_replies(self.pg0, pkt_no_tag)