Trivial: Clean up some typos.

Change-Id: I085615fde1f966490f30ed5d32017b8b088cfd59
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>

44 files changed, 91 insertions, 91 deletions

diff --git a/src/plugins/abf/abf_itf_attach.c b/src/plugins/abf/abf_itf_attach.c
index 67aa5b1b1fa..912448b9b6d 100644
--- a/src/plugins/abf/abf_itf_attach.c
+++ b/src/plugins/abf/abf_itf_attach.c
@@ -184,7 +184,7 @@ abf_itf_attach (fib_protocol_t fproto,
     return (VNET_API_ERROR_ENTRY_ALREADY_EXISTS);
 
   /*
-   * construt a new attachemnt object
+   * construct a new attachment object
    */
   pool_get (abf_itf_attach_pool, aia);
 
@@ -210,7 +210,7 @@ abf_itf_attach (fib_protocol_t fproto,
   if (1 == vec_len (abf_per_itf[fproto][sw_if_index]))
     {
       /*
-       * when enabling the first ABF polciy on the interface
+       * when enabling the first ABF policy on the interface
        * we need to enable the interface input feature
        */
       vnet_feature_enable_disable ((FIB_PROTOCOL_IP4 == fproto ?
@@ -236,7 +236,7 @@ abf_itf_attach (fib_protocol_t fproto,
   abf_setup_acl_lc (fproto, sw_if_index);
 
   /*
-   * become a child of the ABF poilcy so we are notified when
+   * become a child of the ABF policy so we are notified when
    * its forwarding changes.
    */
   aia->aia_sibling = fib_node_child_add (abf_policy_fib_node_type,
@@ -253,7 +253,7 @@ abf_itf_detach (fib_protocol_t fproto, u32 policy_id, u32 sw_if_index)
   u32 index;
 
   /*
-   * check this is a valid attahment
+   * check this is a valid attachment
    */
   aia = abf_itf_attach_db_find (policy_id, sw_if_index);
 
@@ -261,7 +261,7 @@ abf_itf_detach (fib_protocol_t fproto, u32 policy_id, u32 sw_if_index)
     return (VNET_API_ERROR_ENTRY_ALREADY_EXISTS);
 
   /*
-   * first remove from the interface's vecotr
+   * first remove from the interface's vector
    */
   ASSERT (abf_per_itf[fproto]);
   ASSERT (abf_per_itf[fproto][sw_if_index]);
@@ -275,7 +275,7 @@ abf_itf_detach (fib_protocol_t fproto, u32 policy_id, u32 sw_if_index)
   if (0 == vec_len (abf_per_itf[fproto][sw_if_index]))
     {
       /*
-       * when deleting the last ABF polciy on the interface
+       * when deleting the last ABF policy on the interface
        * we need to disable the interface input feature
        */
       vnet_feature_enable_disable ((FIB_PROTOCOL_IP4 == fproto ?
@@ -307,7 +307,7 @@ abf_itf_detach (fib_protocol_t fproto, u32 policy_id, u32 sw_if_index)
 			 aia->aia_abf, aia->aia_sibling);
 
   /*
-   * remove the attahcment from the DB
+   * remove the attachment from the DB
    */
   abf_itf_attach_db_del (policy_id, sw_if_index);
 
@@ -331,7 +331,7 @@ format_abf_intf_attach (u8 * s, va_list * args)
   abf_policy_t *ap;
 
   ap = abf_policy_get (aia->aia_abf);
-  s = format (s, "abf-interface-attach: policy:%d prioity:%d",
+  s = format (s, "abf-interface-attach: policy:%d priority:%d",
 	      ap->ap_id, aia->aia_prio);
   s = format (s, "\n  %U", format_dpo_id, &aia->aia_dpo, 2);
 
diff --git a/src/plugins/abf/abf_policy.c b/src/plugins/abf/abf_policy.c
index 9c7406553e6..1fde97f4c50 100644
--- a/src/plugins/abf/abf_policy.c
+++ b/src/plugins/abf/abf_policy.c
@@ -121,7 +121,7 @@ abf_policy_update (u32 policy_id,
     {
       /*
        * update an existing policy.
-       * - add the path to the path-list and swap our ancestory
+       * - add the path to the path-list and swap our ancestry
        * - backwalk to poke all attachments to update
        */
       fib_node_index_t old_pl;
@@ -190,7 +190,7 @@ abf_policy_delete (u32 policy_id, const fib_route_path_t * rpaths)
     {
       /*
        * update an existing policy.
-       * - add the path to the path-list and swap our ancestory
+       * - add the path to the path-list and swap our ancestry
        * - backwalk to poke all attachments to update
        */
       fib_node_index_t old_pl;
diff --git a/src/plugins/abf/abf_policy.h b/src/plugins/abf/abf_policy.h
index 71fa1a61afd..724611eac38 100644
--- a/src/plugins/abf/abf_policy.h
+++ b/src/plugins/abf/abf_policy.h
@@ -22,9 +22,9 @@
 #define ABF_PLUGIN_VERSION_MINOR 0
 
 /**
- * An ACL based Forwading 'policy'.
+ * An ACL based Forwarding 'policy'.
  * This comprises the ACL index to match against and the forwarding
- * path to take if the match is successfull.
+ * path to take if the match is successful.
  *
  * ABF policies are then 'attached' to interfaces. An input feature
  * will run through the list of policies a match will divert the packet,
diff --git a/src/plugins/acl/acl.c b/src/plugins/acl/acl.c
index 8f2be5d197b..b6e491cf897 100644
--- a/src/plugins/acl/acl.c
+++ b/src/plugins/acl/acl.c
@@ -472,7 +472,7 @@ acl_del_list (u32 acl_list_index)
     return VNET_API_ERROR_ACL_IN_USE_INBOUND;
   if (acl_is_used_by (acl_list_index, am->output_sw_if_index_vec_by_acl))
     return VNET_API_ERROR_ACL_IN_USE_OUTBOUND;
-  /* lookup contexts cover other cases, not just inbound/oubound, so check that */
+  /* lookup contexts cover other cases, not just inbound/outbound, so check that */
   if (acl_is_used_by (acl_list_index, am->lc_index_vec_by_acl))
     return VNET_API_ERROR_ACL_IN_USE_BY_LOOKUP_CONTEXT;
 
@@ -2239,7 +2239,7 @@ macip_acl_add_list (u32 count, vl_api_macip_acl_rule_t rules[],
   a->count = count;
   memcpy (a->tag, tag, sizeof (a->tag));
 
-  /* Create and populate the classifer tables */
+  /* Create and populate the classifier tables */
   macip_create_classify_tables (am, *acl_list_index);
   clib_mem_set_heap (oldheap);
   /* If the ACL was already applied somewhere, reapply the newly created tables */
diff --git a/src/plugins/acl/acl.h b/src/plugins/acl/acl.h
index d030681ac3a..310f80bfddc 100644
--- a/src/plugins/acl/acl.h
+++ b/src/plugins/acl/acl.h
@@ -241,7 +241,7 @@ typedef struct {
   int fa_sessions_hash_is_initialized;
   clib_bihash_40_8_t fa_ip6_sessions_hash;
   clib_bihash_16_8_t fa_ip4_sessions_hash;
-  /* The process node which orcherstrates the cleanup */
+  /* The process node which orchestrates the cleanup */
   u32 fa_cleaner_node_index;
   /* FA session timeouts, in seconds */
   u32 session_timeout_sec[ACL_N_TIMEOUTS];
diff --git a/src/plugins/acl/acl_lookup_context.md b/src/plugins/acl/acl_lookup_context.md
index 53ad1ef0e46..e95f82043f9 100644
--- a/src/plugins/acl/acl_lookup_context.md
+++ b/src/plugins/acl/acl_lookup_context.md
@@ -8,7 +8,7 @@ However, some uses outside of pure traffic control have appeared, for example,
 ACL-based forwarding, etc. Also, improved algorithms of the ACL lookup
 could benefit of the more abstract representation, not coupled to the interfaces.
 
-This describes a way to accomodate these use cases by generalizing the ACL
+This describes a way to accommodate these use cases by generalizing the ACL
 lookups into "ACL lookup contexts", not tied to specific interfaces, usable
 by other portions of the code by utilizing the exports.h header file,
 which provides the necessary interface.
@@ -21,7 +21,7 @@ The first reason is the logical grouping of multiple ACLs.
 
 The interface matching code currently allows for matching multiple ACLs
 in a 'first-match' fashion. Some other use cases also fall into a similar
-pattern: they attemt to match a sequence of ACLs, and the first matched ACL
+pattern: they attempt to match a sequence of ACLs, and the first matched ACL
 determines what the outcome is, e.g. where to forward traffic. Thus,
 a match never happens on an ACL in isolation, but always on a group of
 ACLs.
@@ -79,7 +79,7 @@ in the "show acl lookup context" command.
 To set the vector of ACL numbers to be looked up within the context, use the function
 acl_plugin.set_acl_vec_for_context(lc_index, acl_list). The first parameter specifies the context
 that you have created, the second parameter is a vector of u32s, each u32 being the index of the ACL
-which we should be looking up within this context. The comand is idempotent, i.e.
+which we should be looking up within this context. The command is idempotent, i.e.
 it unapplies the previously applied list of ACLs, and then sets the new list of ACLs.
 
 Subsequent ACL updates for the already applied ACLs will cause the re-application
diff --git a/src/plugins/acl/acl_multicore_doc.md b/src/plugins/acl/acl_multicore_doc.md
index b2cf7b9c6d4..deec5e9d566 100644
--- a/src/plugins/acl/acl_multicore_doc.md
+++ b/src/plugins/acl/acl_multicore_doc.md
@@ -93,7 +93,7 @@ of the existing connections was done in the datapath,
 by periodically calling the aging function.
 
 This decision to use the existing components,
-with its attrativeness, did bring a few limitations as well:
+with its attractiveness, did bring a few limitations as well:
 
 * L2 classifier is a simple mask-and-value match, with
 a fixed mask across the table. So, sanely supporting IPv6
diff --git a/src/plugins/acl/exported_types.h b/src/plugins/acl/exported_types.h
index cdd1a166eac..a5b1c349772 100644
--- a/src/plugins/acl/exported_types.h
+++ b/src/plugins/acl/exported_types.h
@@ -51,7 +51,7 @@ typedef int (*acl_plugin_get_lookup_context_index_fn_t) (u32 acl_user_id, u32 va
 
 /*
  * Release the lookup context index and destroy
- * any asssociated data structures.
+ * any associated data structures.
  */
 
 typedef void (*acl_plugin_put_lookup_context_index_fn_t) (u32 lc_index);
diff --git a/src/plugins/acl/hash_lookup.c b/src/plugins/acl/hash_lookup.c
index 82df45ea304..f2913a933d0 100644
--- a/src/plugins/acl/hash_lookup.c
+++ b/src/plugins/acl/hash_lookup.c
@@ -578,7 +578,7 @@ activate_applied_ace_hash_entry(acl_main_t *am,
     ASSERT(last_index != ~0);
     applied_hash_ace_entry_t *last_pae = vec_elt_at_index((*applied_hash_aces), last_index);
     DBG("...advance to chained entry index: %d", last_index);
-    /* link ourseves in */
+    /* link ourselves in */
     last_pae->next_applied_entry_index = new_index;
     pae->prev_applied_entry_index = last_index;
     /* adjust the pointer to the new tail */
@@ -1207,7 +1207,7 @@ void hash_acl_delete(acl_main_t *am, int acl_index)
    * should not be possible to delete, and the change adding this also adds
    * the safeguards to that respect, so this is not a problem.
    *
-   * The part to rememeber is that this routine is called in process of reapplication
+   * The part to remember is that this routine is called in process of reapplication
    * during the acl_add_replace() API call - the old acl ruleset is deleted, then
    * the new one is added, without the change in the applied ACLs - so this case
    * has to be handled.
diff --git a/src/plugins/acl/lookup_context.c b/src/plugins/acl/lookup_context.c
index ef46592edd2..904e8ad945b 100644
--- a/src/plugins/acl/lookup_context.c
+++ b/src/plugins/acl/lookup_context.c
@@ -179,7 +179,7 @@ unapply_acl_vec(u32 lc_index, u32 *acls)
 
 /*
  * Release the lookup context index and destroy
- * any asssociated data structures.
+ * any associated data structures.
  */
 static void acl_plugin_put_lookup_context_index (u32 lc_index)
 {
diff --git a/src/plugins/acl/manual_fns.h b/src/plugins/acl/manual_fns.h
index 6ab014caf8d..c592f892272 100644
--- a/src/plugins/acl/manual_fns.h
+++ b/src/plugins/acl/manual_fns.h
@@ -227,7 +227,7 @@ vl_api_acl_details_t_print (vl_api_acl_details_t * a, void *handle)
   u32 count = clib_net_to_host_u32 (a->count);
   if (count > 0x100000)
     {
-      s = format (s, "WARN: acl_defails count endianness wrong? Fixup to avoid long loop.\n");
+      s = format (s, "WARN: acl_details count endianness wrong? Fixup to avoid long loop.\n");
       count = a->count;
     }
 
@@ -256,7 +256,7 @@ vl_api_macip_acl_details_t_print (vl_api_macip_acl_details_t * a,
   u32 count = clib_net_to_host_u32 (a->count);
   if (count > 0x100000)
     {
-      s = format (s, "WARN: macip_acl_defails count endianness wrong? Fixup to avoid long loop.\n");
+      s = format (s, "WARN: macip_acl_details count endianness wrong? Fixup to avoid long loop.\n");
       count = a->count;
     }
 
diff --git a/src/plugins/acl/session_inlines.h b/src/plugins/acl/session_inlines.h
index cab4d7d4cc9..db878c003e2 100644
--- a/src/plugins/acl/session_inlines.h
+++ b/src/plugins/acl/session_inlines.h
@@ -70,7 +70,7 @@ acl_fa_ifc_has_out_acl (acl_main_t * am, int sw_if_index0)
 always_inline int
 fa_session_get_timeout_type (acl_main_t * am, fa_session_t * sess)
 {
-  /* seen both SYNs and ACKs but not FINs means we are in establshed state */
+  /* seen both SYNs and ACKs but not FINs means we are in established state */
   u16 masked_flags =
     sess->tcp_flags_seen.as_u16 & ((TCP_FLAGS_RSTFINACKSYN << 8) +
 				   TCP_FLAGS_RSTFINACKSYN);
diff --git a/src/plugins/avf/README.md b/src/plugins/avf/README.md
index 2ebc1372570..995a557a467 100644
--- a/src/plugins/avf/README.md
+++ b/src/plugins/avf/README.md
@@ -4,7 +4,7 @@
 This plugins provides native device support for intel Adaptive Virtual
 Function (AVF). AVF is driver specification for current and future
 Intel Virtual Function devices. AVF defines communication channel between
-Physical Funciton (PF) and VF.
+Physical Functions (PF) and VF.
 In essence, today this driver can be used only with 
 Intel XL710 / X710 / XXV710 adapters.
 
@@ -75,7 +75,7 @@ setup 0000:3b:00.0 00:11:22:33:44:00
 setup 0000:3b:00.1 00:11:22:33:44:01
 ```
 
-### Interface Cration
+### Interface Creation
 Interfaces can be dynamically created by using following CLI:
 ```
 create interface avf 0000:3b:02.0
diff --git a/src/plugins/avf/output.c b/src/plugins/avf/output.c
index a094050d6ac..8f8e82d146c 100644
--- a/src/plugins/avf/output.c
+++ b/src/plugins/avf/output.c
@@ -61,7 +61,7 @@ VNET_DEVICE_CLASS_TX_FN (avf_device_class) (vlib_main_t * vm,
   next = txq->next;
 
 retry:
-  /* release cosumed bufs */
+  /* release consumed bufs */
   if (txq->n_enqueued)
     {
       u16 first, slot, n_free = 0;
diff --git a/src/plugins/cdp/cdp_node.c b/src/plugins/cdp/cdp_node.c
index ac7e7642dae..740bb4105e8 100644
--- a/src/plugins/cdp/cdp_node.c
+++ b/src/plugins/cdp/cdp_node.c
@@ -23,7 +23,7 @@
 
     The interior node is neither pipelined nor dual-looped, because
     it would be very unusual to see more than one CDP packet in
-    a given input frame. So, it's a very simple / straighforward
+    a given input frame. So, it's a very simple / straightforward
     example.
 */
 
diff --git a/src/plugins/dpdk/device/cli.c b/src/plugins/dpdk/device/cli.c
index cac27dee639..c3df1ab27cc 100644
--- a/src/plugins/dpdk/device/cli.c
+++ b/src/plugins/dpdk/device/cli.c
@@ -337,7 +337,7 @@ pcap_tx_trace_command_fn (vlib_main_t * vm,
  *   associated with a packet capture. If packet capture is in progress,
  *   '<em>status</em>' also will return the number of packets currently in
  *   the local buffer. All additional attributes entered on command line
- *   with '<em>status</em>' will be ingnored and not applied.
+ *   with '<em>status</em>' will be ignored and not applied.
  *
  * @cliexpar
  * Example of how to display the status of a tx packet capture when off:
@@ -571,7 +571,7 @@ test_dpdk_buffer (vlib_main_t * vm, unformat_input_t * input,
  * @cliexpar
  * @parblock
  *
- * Example of how to display how many DPDK buffer test command has allcoated:
+ * Example of how to display how many DPDK buffer test command has allocated:
  * @cliexstart{test dpdk buffer}
  * Currently 0 buffers allocated
  * @cliexend
@@ -1384,7 +1384,7 @@ done:
 }
 
 /*?
- * This command is used to set the packet fields required for classifiying the
+ * This command is used to set the packet fields required for classifying the
  * incoming packet. As a result of classification process, packet field
  * information will be mapped to 5 tuples (subport, pipe, traffic class, pipe,
  * color) and stored in packet mbuf.
@@ -2003,7 +2003,7 @@ show_dpdk_version_command_fn (vlib_main_t * vm,
  * the list of arguments passed to DPDK when started.
  *
  * @cliexpar
- * Example of how to display how many DPDK buffer test command has allcoated:
+ * Example of how to display how many DPDK buffer test command has allocated:
  * @cliexstart{show dpdk version}
  * DPDK Version:        DPDK 16.11.0
  * DPDK EAL init args:  -c 1 -n 4 --huge-dir /run/vpp/hugepages --file-prefix vpp -w 0000:00:08.0 -w 0000:00:09.0 --master-lcore 0 --socket-mem 256
diff --git a/src/plugins/dpdk/device/dpdk_priv.h b/src/plugins/dpdk/device/dpdk_priv.h
index c73f57edfe0..dd4b4ae8221 100644
--- a/src/plugins/dpdk/device/dpdk_priv.h
+++ b/src/plugins/dpdk/device/dpdk_priv.h
@@ -44,7 +44,7 @@ _(blacklist, b)                                 \
 _(mem-alloc-request, m)                         \
 _(force-ranks, r)
 
-/* These args are preceeded by "--" and followed by a single string */
+/* These args are preceded by "--" and followed by a single string */
 #define foreach_eal_double_hyphen_arg           \
 _(huge-dir)                                     \
 _(proc-type)                                    \
diff --git a/src/plugins/dpdk/device/format.c b/src/plugins/dpdk/device/format.c
index 1b0fbb9ffe9..eed7e2862d3 100644
--- a/src/plugins/dpdk/device/format.c
+++ b/src/plugins/dpdk/device/format.c
@@ -154,7 +154,7 @@
   _ (INNER_L3, IPV6_EXT_UNKNOWN, "Inner IPv6 packet with or without extension headers") \
   _ (INNER_L4, TCP, "Inner TCP packet")                                 \
   _ (INNER_L4, UDP, "Inner UDP packet")                                 \
-  _ (INNER_L4, FRAG, "Inner fagmented IP packet")                       \
+  _ (INNER_L4, FRAG, "Inner fragmented IP packet")                       \
   _ (INNER_L4, SCTP, "Inner SCTP (Stream Control Transmission Protocol) packet") \
   _ (INNER_L4, ICMP, "Inner ICMP packet")                               \
   _ (INNER_L4, NONFRAG, "Inner non-fragmented IP packet")
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index efa27eb4a01..5479f81f281 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -754,7 +754,7 @@ dpdk_lib_init (dpdk_main_t * dm)
        * For cisco VIC vNIC, set default to VLAN strip enabled, unless
        * specified otherwise in the startup config.
        * For other NICs default to VLAN strip disabled, unless specified
-       * otherwis in the startup config.
+       * otherwise in the startup config.
        */
       if (xd->pmd == VNET_DPDK_PMD_ENIC)
 	{
@@ -1007,7 +1007,7 @@ dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
 	   devconf->num_rx_queues)
     error =
       clib_error_return (0,
-			 "%U: number of worker threadds must be "
+			 "%U: number of worker threads must be "
 			 "equal to number of rx queues", format_vlib_pci_addr,
 			 &pci_addr);
 
diff --git a/src/plugins/dpdk/device/node.c b/src/plugins/dpdk/device/node.c
index 3a7e2789151..e28ad7f7108 100644
--- a/src/plugins/dpdk/device/node.c
+++ b/src/plugins/dpdk/device/node.c
@@ -46,8 +46,8 @@ enum
 };
 
 /* currently we are just copying bit positions from DPDK, but that
-   might change in future, in case we strart to be interested in something
-   stored in upper bytes. Curently we store only lower byte for perf reasons */
+   might change in future, in case we start to be interested in something
+   stored in upper bytes. Currently we store only lower byte for perf reasons */
 STATIC_ASSERT (1 << DPDK_RX_F_CKSUM_GOOD == PKT_RX_IP_CKSUM_GOOD, "");
 STATIC_ASSERT (1 << DPDK_RX_F_CKSUM_BAD == PKT_RX_IP_CKSUM_BAD, "");
 STATIC_ASSERT (1 << DPDK_RX_F_FDIR == PKT_RX_FDIR, "");
@@ -504,7 +504,7 @@ dpdk_device_input (vlib_main_t * vm, dpdk_main_t * dm, dpdk_device_t * xd,
   else
     dpdk_set_next_from_etype (vm, node, ptd, n_rx_packets);
 
-  /* flow offload - process if rx flow offlaod enabled and at least one packet
+  /* flow offload - process if rx flow offload enabled and at least one packet
      is marked */
   if (PREDICT_FALSE ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) &&
 		     (or_flags & (1 << DPDK_RX_F_FDIR))))
diff --git a/src/plugins/dpdk/hqos/qos_doc.md b/src/plugins/dpdk/hqos/qos_doc.md
index 7c064246e60..fe3bb1bcd4b 100644
--- a/src/plugins/dpdk/hqos/qos_doc.md
+++ b/src/plugins/dpdk/hqos/qos_doc.md
@@ -2,14 +2,14 @@
 
 The Quality-of-Service (QoS) scheduler performs egress-traffic management by
 prioritizing the transmission of the packets of different type services and
-subcribers based on the Service Level Agreements (SLAs). The QoS scheduler can
+subscribers based on the Service Level Agreements (SLAs). The QoS scheduler can
 be enabled on one or more NIC output interfaces depending upon the
 requirement.
 
 
 ## Overview
 
-The QoS schdeuler supports a number of scheduling and shaping levels which
+The QoS scheduler supports a number of scheduling and shaping levels which
 construct hierarchical-tree. The first level in the hierarchy is port (i.e.
 the physical interface) that constitutes the root node of the tree. The
 subsequent level is subport which represents the group of the
@@ -34,7 +34,7 @@ For more information on QoS Scheduler, please refer DPDK Programmer's Guide-
 http://dpdk.org/doc/guides/prog_guide/qos_framework.html
 
 
-### QoS Schdeuler Parameters
+### QoS Scheduler Parameters
 
 Following illustrates the default HQoS configuration for each 10GbE output
 port:
@@ -134,7 +134,7 @@ red {
 
 ### DPDK QoS Scheduler Integration in VPP
 
-The Hierarchical Quaity-of-Service (HQoS) scheduler object could be seen as
+The Hierarchical Quality-of-Service (HQoS) scheduler object could be seen as
 part of the logical NIC output interface. To enable HQoS on specific output
 interface, vpp startup.conf file has to be configured accordingly. The output
 interface that requires HQoS, should have "hqos" parameter specified in dpdk
@@ -213,7 +213,7 @@ be used.
 set dpdk interface hqos placement <interface> thread <n>
 ```
 
-The command below is used to set the packet fields required for classifiying
+The command below is used to set the packet fields required for classifying
 the incoming packet. As a result of classification process,     packet field
 information will be mapped to 5 tuples (subport, pipe, traffic class, pipe,
 color) and stored in packet mbuf.
@@ -223,7 +223,7 @@ set dpdk interface hqos pktfield <interface> id subport|pipe|tc offset <n>
     mask <hex-mask>
 ```
 
-The DSCP table entries used for idenfiying the traffic class and queue can be set using the command below;   
+The DSCP table entries used for identifying the traffic class and queue can be set using the command below;   
 
 ```  
 set dpdk interface hqos tctbl <interface> entry <map_val> tc <tc_id> queue <queue_id>
@@ -286,7 +286,7 @@ below command.
 
 ### QoS Scheduler Binary APIs
 
-This section explans the available binary APIs for configuring QoS scheduler
+This section explains the available binary APIs for configuring QoS scheduler
 parameters in run-time.
 
 The following API can be used to set the pipe profile of a pipe that belongs
diff --git a/src/plugins/dpdk/ipsec/cli.c b/src/plugins/dpdk/ipsec/cli.c
index b879deaa96b..4efa88e4bc0 100644
--- a/src/plugins/dpdk/ipsec/cli.c
+++ b/src/plugins/dpdk/ipsec/cli.c
@@ -393,7 +393,7 @@ VLIB_CLI_COMMAND (set_dpdk_crypto_placement, static) = {
 /* *INDENT-ON* */
 
 /*
- * The thread will not enqueue more operatios to the device but will poll
+ * The thread will not enqueue more operations to the device but will poll
  * from it until there are no more inflight operations.
 */
 static void
@@ -549,7 +549,7 @@ show_dpdk_crypto_pools_fn (vlib_main_t * vm,
  * This command is used to display the DPDK Crypto pools information.
  *
  * @cliexpar
- * Example of how to display the DPDK Cypto pools information:
+ * Example of how to display the DPDK Crypto pools information:
  * @cliexstart{show crypto device mapping}
  * vpp# show dpdk crypto pools
  * crypto_pool_numa1
diff --git a/src/plugins/dpdk/ipsec/dpdk_crypto_ipsec_doc.md b/src/plugins/dpdk/ipsec/dpdk_crypto_ipsec_doc.md
index 8ea77a6c30c..8cf51f07c03 100644
--- a/src/plugins/dpdk/ipsec/dpdk_crypto_ipsec_doc.md
+++ b/src/plugins/dpdk/ipsec/dpdk_crypto_ipsec_doc.md
@@ -32,7 +32,7 @@ Additionally, on x86_64 platforms, DPDK is built with SW crypto support.
 
 VPP allocates crypto resources based on a best effort approach:
 * first allocate Hardware crypto resources, then Software.
-* if there are not enough crypto resources for all workers, the graph node is not modifed and the default VPP IPsec implementation based in OpenSSL is used. The following message is displayed:
+* if there are not enough crypto resources for all workers, the graph node is not modified and the default VPP IPsec implementation based in OpenSSL is used. The following message is displayed:
 
       0: dpdk_ipsec_init: not enough Cryptodevs, default to OpenSSL IPsec
 
diff --git a/src/plugins/gbp/gbp_api.c b/src/plugins/gbp/gbp_api.c
index a541d96e0f6..0cbe9910101 100644
--- a/src/plugins/gbp/gbp_api.c
+++ b/src/plugins/gbp/gbp_api.c
@@ -442,7 +442,7 @@ vl_api_gbp_contract_dump_t_handler (vl_api_gbp_contract_dump_t * mp)
 /*
  * gbp_api_hookup
  * Add vpe's API message handlers to the table.
- * vlib has alread mapped shared memory and
+ * vlib has already mapped shared memory and
  * added the client registration handlers.
  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
  */
diff --git a/src/plugins/gbp/gbp_classify.c b/src/plugins/gbp/gbp_classify.c
index 53389f5a0e3..3dc66993d11 100644
--- a/src/plugins/gbp/gbp_classify.c
+++ b/src/plugins/gbp/gbp_classify.c
@@ -103,7 +103,7 @@ gbp_classify_inline (vlib_main_t * vm,
 	      if (is_l3)
 		{
 		  /*
-		   * Go straight to looukp, do not pass go, do not collect $200
+		   * Go straight to lookup, do not pass go, do not collect $200
 		   */
 		  next0 = 0;
 		}
diff --git a/src/plugins/gbp/gbp_endpoint.h b/src/plugins/gbp/gbp_endpoint.h
index 275897dd0e3..c92b2172594 100644
--- a/src/plugins/gbp/gbp_endpoint.h
+++ b/src/plugins/gbp/gbp_endpoint.h
@@ -37,10 +37,10 @@ typedef enum gbp_endpoint_flags_t_
 
 /**
  * A Group Based Policy Endpoint.
- * This is typcially a VM or container. If the endpoint is local (i.e. on
- * the smae compute node as VPP) then there is one interface per-endpoint.
- * If the EP is remote,e.g. reachable onver a [vxlan] tunnel, then there
- * will be multiple EPs reachable over the tunnel and they can be distingusihed
+ * This is typically a VM or container. If the endpoint is local (i.e. on
+ * the same compute node as VPP) then there is one interface per-endpoint.
+ * If the EP is remote,e.g. reachable over a [vxlan] tunnel, then there
+ * will be multiple EPs reachable over the tunnel and they can be distinguished
  * via either their MAC or IP Address[es].
  */
 typedef struct gbp_endpoint_t_
diff --git a/src/plugins/gbp/gbp_recirc.c b/src/plugins/gbp/gbp_recirc.c
index c44fc2137c3..576ec8512bc 100644
--- a/src/plugins/gbp/gbp_recirc.c
+++ b/src/plugins/gbp/gbp_recirc.c
@@ -73,7 +73,7 @@ gbp_recirc_add (u32 sw_if_index, epg_id_t epg_id, u8 is_ext)
       }
 
       /*
-       * Packets on the recirculation interface are subjet to src-EPG
+       * Packets on the recirculation interface are subject to src-EPG
        * classification. Recirc interfaces are L2-emulation mode.
        *   for internal EPGs this is via an LPM on all external subnets.
        *   for external EPGs this is via a port mapping.
diff --git a/src/plugins/gbp/gbp_recirc.h b/src/plugins/gbp/gbp_recirc.h
index 04a2378dcae..148a5beafcb 100644
--- a/src/plugins/gbp/gbp_recirc.h
+++ b/src/plugins/gbp/gbp_recirc.h
@@ -35,8 +35,8 @@ typedef struct gpb_recirc_t_
   u32 gr_fib_index[FIB_PROTOCOL_IP_MAX];
 
   /**
-   * Is the interface for packets post-NAT translatoin (i.e. ext)
-   * or pre-NAT ranslation (i.e. internal)
+   * Is the interface for packets post-NAT translation (i.e. ext)
+   * or pre-NAT translation (i.e. internal)
    */
   u8 gr_is_ext;
 
diff --git a/src/plugins/gtpu/gtpu.c b/src/plugins/gtpu/gtpu.c
index e5032b45271..4f58f1176cf 100644
--- a/src/plugins/gtpu/gtpu.c
+++ b/src/plugins/gtpu/gtpu.c
@@ -493,8 +493,8 @@ int vnet_gtpu_add_del_tunnel
       else
 	{
 	  /* Multicast tunnel -
-	   * as the same mcast group can be used for mutiple mcast tunnels
-	   * with different VNIs, create the output fib adjecency only if
+	   * as the same mcast group can be used for multiple mcast tunnels
+	   * with different VNIs, create the output adjacency only if
 	   * it does not already exist
 	   */
 	  fib_protocol_t fp = fib_ip_proto (is_ip6);
@@ -994,7 +994,7 @@ set_ip4_gtpu_bypass (vlib_main_t * vm,
  *                                 ip4-lookup [2]
  * @cliexend
  *
- * Example of how to display the feature enabed on an interface:
+ * Example of how to display the feature enabled on an interface:
  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
  * IP feature paths configured on GigabitEthernet2/0/0...
  * ...
@@ -1051,7 +1051,7 @@ set_ip6_gtpu_bypass (vlib_main_t * vm,
  *                                 ip6-lookup [2]
  * @cliexend
  *
- * Example of how to display the feature enabed on an interface:
+ * Example of how to display the feature enabled on an interface:
  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
  * IP feature paths configured on GigabitEthernet2/0/0...
  * ...
diff --git a/src/plugins/gtpu/gtpu_decap.c b/src/plugins/gtpu/gtpu_decap.c
index 1aac8b55745..d52ccc0219c 100644
--- a/src/plugins/gtpu/gtpu_decap.c
+++ b/src/plugins/gtpu/gtpu_decap.c
@@ -213,7 +213,7 @@ gtpu_input (vlib_main_t * vm,
               tunnel_index0 = last_tunnel_index;
 	    t0 = pool_elt_at_index (gtm->tunnels, tunnel_index0);
 
-	    /* Validate GTPU tunnel encap-fib index agaist packet */
+	    /* Validate GTPU tunnel encap-fib index against packet */
 	    if (PREDICT_FALSE (validate_gtpu_fib (b0, t0, is_ip4) == 0))
 	      {
 		error0 = GTPU_ERROR_NO_SUCH_TUNNEL;
@@ -263,7 +263,7 @@ gtpu_input (vlib_main_t * vm,
               tunnel_index0 = last_tunnel_index;
 	    t0 = pool_elt_at_index (gtm->tunnels, tunnel_index0);
 
-	    /* Validate GTPU tunnel encap-fib index agaist packet */
+	    /* Validate GTPU tunnel encap-fib index against packet */
 	    if (PREDICT_FALSE (validate_gtpu_fib (b0, t0, is_ip4) == 0))
 	      {
 		error0 = GTPU_ERROR_NO_SUCH_TUNNEL;
@@ -387,7 +387,7 @@ gtpu_input (vlib_main_t * vm,
               tunnel_index1 = last_tunnel_index;
  	    t1 = pool_elt_at_index (gtm->tunnels, tunnel_index1);
 
-	    /* Validate GTPU tunnel encap-fib index agaist packet */
+	    /* Validate GTPU tunnel encap-fib index against packet */
 	    if (PREDICT_FALSE (validate_gtpu_fib (b1, t1, is_ip4) == 0))
 	      {
 		error1 = GTPU_ERROR_NO_SUCH_TUNNEL;
@@ -439,7 +439,7 @@ gtpu_input (vlib_main_t * vm,
               tunnel_index1 = last_tunnel_index;
  	    t1 = pool_elt_at_index (gtm->tunnels, tunnel_index1);
 
-	    /* Validate GTPU tunnel encap-fib index agaist packet */
+	    /* Validate GTPU tunnel encap-fib index against packet */
 	    if (PREDICT_FALSE (validate_gtpu_fib (b1, t1, is_ip4) == 0))
 	      {
 		error1 = GTPU_ERROR_NO_SUCH_TUNNEL;
@@ -616,7 +616,7 @@ gtpu_input (vlib_main_t * vm,
               tunnel_index0 = last_tunnel_index;
 	    t0 = pool_elt_at_index (gtm->tunnels, tunnel_index0);
 
-	    /* Validate GTPU tunnel encap-fib index agaist packet */
+	    /* Validate GTPU tunnel encap-fib index against packet */
 	    if (PREDICT_FALSE (validate_gtpu_fib (b0, t0, is_ip4) == 0))
 	      {
 		error0 = GTPU_ERROR_NO_SUCH_TUNNEL;
@@ -666,7 +666,7 @@ gtpu_input (vlib_main_t * vm,
               tunnel_index0 = last_tunnel_index;
 	    t0 = pool_elt_at_index (gtm->tunnels, tunnel_index0);
 
-	    /* Validate GTPU tunnel encap-fib index agaist packet */
+	    /* Validate GTPU tunnel encap-fib index against packet */
 	    if (PREDICT_FALSE (validate_gtpu_fib (b0, t0, is_ip4) == 0))
 	      {
 		error0 = GTPU_ERROR_NO_SUCH_TUNNEL;
diff --git a/src/plugins/igmp/igmp.api b/src/plugins/igmp/igmp.api
index 9bf654f0749..2a2e68030f6 100644
--- a/src/plugins/igmp/igmp.api
+++ b/src/plugins/igmp/igmp.api
@@ -79,7 +79,7 @@ autoreply define igmp_listen
 
 /**
  * @brief
- *   Used by a 'router' and 'host' to enable the recption of IGMP packets.
+ *   Used by a 'router' and 'host' to enable the reception of IGMP packets.
  *   For hosts this must be called once before igmp_listen.
  *
  *   @param client_index - opaque cookie to identify the sender
diff --git a/src/plugins/igmp/igmp.c b/src/plugins/igmp/igmp.c
index 98ac27168ea..85ba35c31d6 100644
--- a/src/plugins/igmp/igmp.c
+++ b/src/plugins/igmp/igmp.c
@@ -156,7 +156,7 @@ igmp_listen (vlib_main_t * vm,
 	    format_vnet_sw_if_index_name, vnet_get_main (),
 	    sw_if_index, format_igmp_filter_mode, mode);
   /*
-   * find configuration, if it dosn't exist, then this interface is
+   * find configuration, if it doesn't exist, then this interface is
    * not IGMP enabled
    */
   config = igmp_config_lookup (sw_if_index);
@@ -172,7 +172,7 @@ igmp_listen (vlib_main_t * vm,
       goto error;
     }
 
-  /* find igmp group, if it dosn't exist, create new */
+  /* find igmp group, if it doesn't exist, create new */
   group = igmp_group_lookup (config, gaddr);
 
   if (!group)
@@ -292,7 +292,7 @@ igmp_listen (vlib_main_t * vm,
 	  /*
 	   * The control plane is excluding some sources.
 	   *  - First; check for those that are present in the include list
-	   *  - Second; check add them to the exlude list
+	   *  - Second; check add them to the exclude list
 	   *
 	   * TODO
 	   */
@@ -364,7 +364,7 @@ igmp_enable_disable (u32 sw_if_index, u8 enable, igmp_mode_t mode)
       .frp_weight = 1,
     };
   /* *INDENT-ON* */
-  /* find configuration, if it dosn't exist, create new */
+  /* find configuration, if it doesn't exist, create new */
   config = igmp_config_lookup (sw_if_index);
   mfib_index = mfib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
 						     sw_if_index);
diff --git a/src/plugins/igmp/igmp.h b/src/plugins/igmp/igmp.h
index bf123ddbb79..626d9879158 100644
--- a/src/plugins/igmp/igmp.h
+++ b/src/plugins/igmp/igmp.h
@@ -52,7 +52,7 @@
 #define IGMP_SSM_DEFAULT        	(0x000000E8)
 #endif
 
-/** helper macro to get igmp mebership group from pointer plus offset */
+/** helper macro to get igmp membership group from pointer plus offset */
 #define group_ptr(p, l) ((igmp_membership_group_v3_t *)((u8*)(p) + (l)))
 #define group_cptr(p, l) ((const igmp_membership_group_v3_t *)((u8*)(p) + (l)))
 
diff --git a/src/plugins/igmp/igmp_cli.c b/src/plugins/igmp/igmp_cli.c
index 33322ac9c58..e943fbb8349 100644
--- a/src/plugins/igmp/igmp_cli.c
+++ b/src/plugins/igmp/igmp_cli.c
@@ -137,7 +137,7 @@ igmp_listen_command_fn (vlib_main_t * vm, unformat_input_t * input,
 	  clib_error_return (0, "This igmp configuration already exists");
       else
 	error =
-	  clib_error_return (0, "This igmp configuration does not nexist");
+	  clib_error_return (0, "This igmp configuration does not exist");
     }
   else if (rv == -2)
     error =
diff --git a/src/plugins/igmp/igmp_config.h b/src/plugins/igmp/igmp_config.h
index ffd3dea9b28..a9f48a768fa 100644
--- a/src/plugins/igmp/igmp_config.h
+++ b/src/plugins/igmp/igmp_config.h
@@ -58,7 +58,7 @@ typedef struct igmp_config_t_
   igmp_mode_t mode;
 
   /**
-   * Robustness variable (seciotn 5.1)
+   * Robustness variable (section 5.1)
    */
   u8 robustness_var;
 
@@ -68,7 +68,7 @@ typedef struct igmp_config_t_
   uword *igmp_group_by_key;
 
   /**
-   * A vector of scheduled query-respone timers
+   * A vector of scheduled query-response timers
    */
   igmp_timer_id_t timers[IGMP_CONFIG_N_TIMERS];
 } igmp_config_t;
diff --git a/src/plugins/igmp/igmp_group.h b/src/plugins/igmp/igmp_group.h
index dc0fc7a0f8a..6c363de6515 100644
--- a/src/plugins/igmp/igmp_group.h
+++ b/src/plugins/igmp/igmp_group.h
@@ -31,7 +31,7 @@ typedef enum igmp_group_timer_type_t_
    */
   IGMP_GROUP_TIMER_QUERY_REPLY,
   /**
-   * wait for response from a sent G/SG specfic query.
+   * wait for response from a sent G/SG specific query.
    * Sent when a host leaves a group
    */
   IGMP_GROUP_TIMER_QUERY_SENT,
diff --git a/src/plugins/igmp/igmp_pkt.c b/src/plugins/igmp/igmp_pkt.c
index 1fd240c7d9a..a2034d4bec6 100644
--- a/src/plugins/igmp/igmp_pkt.c
+++ b/src/plugins/igmp/igmp_pkt.c
@@ -99,7 +99,7 @@ igmp_pkt_build_ip_header (igmp_pkt_build_t * bk,
       break;
     }
 
-  /* add the router alert optnios */
+  /* add the router alert options */
   option = vlib_buffer_get_current (b);
   option[0] = 0x80 | 20;	// IP4_ROUTER_ALERT_OPTION;
   option[1] = 4;		// length
diff --git a/src/plugins/igmp/igmp_query.c b/src/plugins/igmp/igmp_query.c
index ae9a4d51e95..4b3da094548 100644
--- a/src/plugins/igmp/igmp_query.c
+++ b/src/plugins/igmp/igmp_query.c
@@ -82,7 +82,7 @@ igmp_send_group_report_v3 (u32 obj, void *data)
   if (NULL == srcs)
     {
       /*
-       * there were no sources specified, so this is a group-sepcific query.
+       * there were no sources specified, so this is a group-specific query.
        * We should respond with all our sources
        */
       igmp_pkt_report_v3_add_group (&br, group,
@@ -92,7 +92,7 @@ igmp_send_group_report_v3 (u32 obj, void *data)
     {
       /*
        * the sources stored in the timer object are the combined set of sources
-       * to be quired. We need to respond only to those queried, not our full set.
+       * to be required. We need to respond only to those queried, not our full set.
        */
       ip46_address_t *intersect;
 
diff --git a/src/plugins/igmp/igmp_report.c b/src/plugins/igmp/igmp_report.c
index 2caa9361b70..ae8a9339f3f 100644
--- a/src/plugins/igmp/igmp_report.c
+++ b/src/plugins/igmp/igmp_report.c
@@ -101,7 +101,7 @@ igmp_handle_group_block (igmp_config_t * config,
     {
       igmp_src_t *src;
       /*
-       * sned a group+source specific query
+       * send a group+source specific query
        */
       igmp_pkt_build_query_init (&bq, config->sw_if_index);
       igmp_pkt_query_v3_add_group (&bq, group, srcs);
diff --git a/src/plugins/igmp/igmp_src.c b/src/plugins/igmp/igmp_src.c
index 5e6b6092df4..c70514a8693 100644
--- a/src/plugins/igmp/igmp_src.c
+++ b/src/plugins/igmp/igmp_src.c
@@ -88,7 +88,7 @@ igmp_src_alloc (u32 group_index, const igmp_key_t * skey, igmp_mode_t mode)
       igmp_group_t *group;
       /*
        * start a timer that determines whether the source is still
-       * active o nthe link
+       * active on the link
        */
       src->timers[IGMP_SRC_TIMER_EXP] =
 	igmp_timer_schedule (igmp_timer_type_get (IGMP_TIMER_SRC),
diff --git a/src/plugins/igmp/igmp_src.h b/src/plugins/igmp/igmp_src.h
index 032066ec726..6b27cb6de10 100644
--- a/src/plugins/igmp/igmp_src.h
+++ b/src/plugins/igmp/igmp_src.h
@@ -46,7 +46,7 @@ typedef struct igmp_src_t_
   igmp_key_t *key;
 
   /**
-   * The liveness timer. Reset with each recieved report. on expiry
+   * The liveness timer. Reset with each received report. on expiry
    * the source is removed from the group.
    */
   u32 exp_timer;
diff --git a/src/plugins/igmp/igmp_timer.h b/src/plugins/igmp/igmp_timer.h
index 4847d6f6f6f..21eb0425fb9 100644
--- a/src/plugins/igmp/igmp_timer.h
+++ b/src/plugins/igmp/igmp_timer.h
@@ -36,7 +36,7 @@ typedef void (*igmp_timer_function_t) (u32 obj, void *data);
 
 /**
  * @brief
- *  Scehdule a timer to expire in 'when' seconds
+ *  Schedule a timer to expire in 'when' seconds
  *
  */
 extern igmp_timer_id_t igmp_timer_schedule (f64 when,
diff --git a/src/plugins/memif/memif.c b/src/plugins/memif/memif.c
index b04929401f3..42325dfd7c0 100644
--- a/src/plugins/memif/memif.c
+++ b/src/plugins/memif/memif.c
@@ -1043,7 +1043,7 @@ VLIB_INIT_FUNCTION (memif_init);
 /* *INDENT-OFF* */
 VLIB_PLUGIN_REGISTER () = {
     .version = VPP_BUILD_VER,
-    .description = "Packet Memory Interface (experimetal)",
+    .description = "Packet Memory Interface (experimental)",
 };
 /* *INDENT-ON* */
 
diff --git a/src/plugins/nat/nat44_cli.c b/src/plugins/nat/nat44_cli.c
index 4f02896f4b9..bebc6a0b2dc 100644
--- a/src/plugins/nat/nat44_cli.c
+++ b/src/plugins/nat/nat44_cli.c
@@ -727,7 +727,7 @@ add_static_mapping_command_fn (vlib_main_t * vm,
       goto done;
     case VNET_API_ERROR_NO_SUCH_ENTRY:
       if (is_add)
-	error = clib_error_return (0, "External addres must be allocated.");
+	error = clib_error_return (0, "External address must be allocated.");
       else
 	error = clib_error_return (0, "Mapping not exist.");
       goto done;
@@ -811,7 +811,7 @@ add_identity_mapping_command_fn (vlib_main_t * vm,
       goto done;
     case VNET_API_ERROR_NO_SUCH_ENTRY:
       if (is_add)
-	error = clib_error_return (0, "External addres must be allocated.");
+	error = clib_error_return (0, "External address must be allocated.");
       else
 	error = clib_error_return (0, "Mapping not exist.");
       goto done;
@@ -925,7 +925,7 @@ add_lb_static_mapping_command_fn (vlib_main_t * vm,
       goto done;
     case VNET_API_ERROR_NO_SUCH_ENTRY:
       if (is_add)
-	error = clib_error_return (0, "External addres must be allocated.");
+	error = clib_error_return (0, "External address must be allocated.");
       else
 	error = clib_error_return (0, "Mapping not exist.");
       goto done;