diff --git a/src/box/box.cc b/src/box/box.cc
index eb9baa4b82d3d0bfd65a6b2febad71b7537d1946..ead02c58c1e2269dab77f5cad40de5aeee91584f 100644
--- a/src/box/box.cc
+++ b/src/box/box.cc
@@ -1669,7 +1669,7 @@ box_issue_promote(uint32_t prev_leader_id, int64_t promote_lsn)
 	txn_limbo_write_promote(&txn_limbo, promote_lsn,
 				raft->term);
 	struct synchro_request req = {
-		.type = IPROTO_PROMOTE,
+		.type = IPROTO_RAFT_PROMOTE,
 		.replica_id = prev_leader_id,
 		.origin_id = instance_id,
 		.lsn = promote_lsn,
@@ -1691,7 +1691,7 @@ box_issue_demote(uint32_t prev_leader_id, int64_t promote_lsn)
 	txn_limbo_write_demote(&txn_limbo, promote_lsn,
 				box_raft()->term);
 	struct synchro_request req = {
-		.type = IPROTO_DEMOTE,
+		.type = IPROTO_RAFT_DEMOTE,
 		.replica_id = prev_leader_id,
 		.origin_id = instance_id,
 		.lsn = promote_lsn,
diff --git a/src/box/iproto_constants.h b/src/box/iproto_constants.h
index b9498868cb319adc4b799ee9e8e04c5383d4d4b0..8792737b2686624fd0aeb06c32fce436b87099cb 100644
--- a/src/box/iproto_constants.h
+++ b/src/box/iproto_constants.h
@@ -242,14 +242,14 @@ enum iproto_type {
 
 	IPROTO_RAFT = 30,
 	/** PROMOTE request. */
-	IPROTO_PROMOTE = 31,
+	IPROTO_RAFT_PROMOTE = 31,
 	/** DEMOTE request. */
-	IPROTO_DEMOTE = 32,
+	IPROTO_RAFT_DEMOTE = 32,
 
 	/** A confirmation message for synchronous transactions. */
-	IPROTO_CONFIRM = 40,
+	IPROTO_RAFT_CONFIRM = 40,
 	/** A rollback message for synchronous transactions. */
-	IPROTO_ROLLBACK = 41,
+	IPROTO_RAFT_ROLLBACK = 41,
 
 	/** PING request */
 	IPROTO_PING = 64,
@@ -314,13 +314,13 @@ iproto_type_name(uint16_t type)
 	switch (type) {
 	case IPROTO_RAFT:
 		return "RAFT";
-	case IPROTO_PROMOTE:
+	case IPROTO_RAFT_PROMOTE:
 		return "PROMOTE";
-	case IPROTO_DEMOTE:
+	case IPROTO_RAFT_DEMOTE:
 		return "DEMOTE";
-	case IPROTO_CONFIRM:
+	case IPROTO_RAFT_CONFIRM:
 		return "CONFIRM";
-	case IPROTO_ROLLBACK:
+	case IPROTO_RAFT_ROLLBACK:
 		return "ROLLBACK";
 	case VY_INDEX_RUN_INFO:
 		return "RUNINFO";
@@ -371,15 +371,15 @@ dml_request_key_map(uint16_t type)
 static inline bool
 iproto_type_is_synchro_request(uint16_t type)
 {
-	return type == IPROTO_CONFIRM || type == IPROTO_ROLLBACK ||
-	       type == IPROTO_PROMOTE || type == IPROTO_DEMOTE;
+	return type == IPROTO_RAFT_CONFIRM || type == IPROTO_RAFT_ROLLBACK ||
+	       type == IPROTO_RAFT_PROMOTE || type == IPROTO_RAFT_DEMOTE;
 }
 
 /** PROMOTE/DEMOTE entry (synchronous replication and leader elections). */
 static inline bool
 iproto_type_is_promote_request(uint32_t type)
 {
-       return type == IPROTO_PROMOTE || type == IPROTO_DEMOTE;
+       return type == IPROTO_RAFT_PROMOTE || type == IPROTO_RAFT_DEMOTE;
 }
 
 static inline bool
diff --git a/src/box/memtx_engine.c b/src/box/memtx_engine.c
index 69a16f8ea6069c56992e7710e1b71351157da1c8..70ce7312fbe59fc399f2db7767e2a6e7f838d9af 100644
--- a/src/box/memtx_engine.c
+++ b/src/box/memtx_engine.c
@@ -229,7 +229,7 @@ memtx_engine_recover_raft(const struct xrow_header *row)
 static int
 memtx_engine_recover_synchro(const struct xrow_header *row)
 {
-	assert(row->type == IPROTO_PROMOTE);
+	assert(row->type == IPROTO_RAFT_PROMOTE);
 	struct synchro_request req;
 	if (xrow_decode_synchro(row, &req) != 0)
 		return -1;
@@ -250,7 +250,7 @@ memtx_engine_recover_snapshot_row(struct memtx_engine *memtx,
 	if (row->type != IPROTO_INSERT) {
 		if (row->type == IPROTO_RAFT)
 			return memtx_engine_recover_raft(row);
-		if (row->type == IPROTO_PROMOTE)
+		if (row->type == IPROTO_RAFT_PROMOTE)
 			return memtx_engine_recover_synchro(row);
 		diag_set(ClientError, ER_UNKNOWN_REQUEST_TYPE,
 			 (uint32_t) row->type);
diff --git a/src/box/txn.c b/src/box/txn.c
index b80e722a4bfe473fbf5289ba0a1434a0e9868eb9..e057d2762176d4a576ea57172cb2f8b5812b7a42 100644
--- a/src/box/txn.c
+++ b/src/box/txn.c
@@ -407,7 +407,7 @@ txn_commit_stmt(struct txn *txn, struct request *request)
 	/*
 	 * Create WAL record for the write requests in
 	 * non-temporary spaces. stmt->space can be NULL for
-	 * IRPOTO_NOP or IPROTO_CONFIRM.
+	 * IRPOTO_NOP or IPROTO_RAFT_CONFIRM.
 	 */
 	if (stmt->space == NULL || !space_is_temporary(stmt->space)) {
 		if (txn_add_redo(txn, stmt, request) != 0)
diff --git a/src/box/txn_limbo.c b/src/box/txn_limbo.c
index 570f77c46ca49118b36bd2a7e7c8555e408c681d..70447caafafcaa049a8bf4880d6bd421d02ff96f 100644
--- a/src/box/txn_limbo.c
+++ b/src/box/txn_limbo.c
@@ -305,7 +305,7 @@ void
 txn_limbo_checkpoint(const struct txn_limbo *limbo,
 		     struct synchro_request *req)
 {
-	req->type = IPROTO_PROMOTE;
+	req->type = IPROTO_RAFT_PROMOTE;
 	req->replica_id = limbo->owner_id;
 	req->lsn = limbo->confirmed_lsn;
 	req->term = limbo->promote_greatest_term;
@@ -372,7 +372,7 @@ txn_limbo_write_confirm(struct txn_limbo *limbo, int64_t lsn)
 	assert(lsn > limbo->confirmed_lsn);
 	assert(!limbo->is_in_rollback);
 	limbo->confirmed_lsn = lsn;
-	txn_limbo_write_synchro(limbo, IPROTO_CONFIRM, lsn, 0);
+	txn_limbo_write_synchro(limbo, IPROTO_RAFT_CONFIRM, lsn, 0);
 }
 
 /** Confirm all the entries <= @a lsn. */
@@ -450,7 +450,7 @@ txn_limbo_write_rollback(struct txn_limbo *limbo, int64_t lsn)
 	assert(lsn > limbo->confirmed_lsn);
 	assert(!limbo->is_in_rollback);
 	limbo->is_in_rollback = true;
-	txn_limbo_write_synchro(limbo, IPROTO_ROLLBACK, lsn, 0);
+	txn_limbo_write_synchro(limbo, IPROTO_RAFT_ROLLBACK, lsn, 0);
 	limbo->is_in_rollback = false;
 }
 
@@ -498,7 +498,7 @@ txn_limbo_write_promote(struct txn_limbo *limbo, int64_t lsn, uint64_t term)
 	struct txn_limbo_entry *e = txn_limbo_last_synchro_entry(limbo);
 	assert(e == NULL || e->lsn <= lsn);
 	(void) e;
-	txn_limbo_write_synchro(limbo, IPROTO_PROMOTE, lsn, term);
+	txn_limbo_write_synchro(limbo, IPROTO_RAFT_PROMOTE, lsn, term);
 	limbo->is_in_rollback = false;
 }
 
@@ -526,7 +526,7 @@ txn_limbo_write_demote(struct txn_limbo *limbo, int64_t lsn, uint64_t term)
 	struct txn_limbo_entry *e = txn_limbo_last_synchro_entry(limbo);
 	assert(e == NULL || e->lsn <= lsn);
 	(void)e;
-	txn_limbo_write_synchro(limbo, IPROTO_DEMOTE, lsn, term);
+	txn_limbo_write_synchro(limbo, IPROTO_RAFT_DEMOTE, lsn, term);
 	limbo->is_in_rollback = false;
 }
 
@@ -768,16 +768,16 @@ txn_limbo_process(struct txn_limbo *limbo, const struct synchro_request *req)
 		lsn = 0;
 	}
 	switch (req->type) {
-	case IPROTO_CONFIRM:
+	case IPROTO_RAFT_CONFIRM:
 		txn_limbo_read_confirm(limbo, lsn);
 		break;
-	case IPROTO_ROLLBACK:
+	case IPROTO_RAFT_ROLLBACK:
 		txn_limbo_read_rollback(limbo, lsn);
 		break;
-	case IPROTO_PROMOTE:
+	case IPROTO_RAFT_PROMOTE:
 		txn_limbo_read_promote(limbo, req->origin_id, lsn);
 		break;
-	case IPROTO_DEMOTE:
+	case IPROTO_RAFT_DEMOTE:
 		txn_limbo_read_demote(limbo, lsn);
 		break;
 	default:
diff --git a/src/box/xrow.h b/src/box/xrow.h
index cb83fddff3fec1814a9beb565cb4029e976c2963..d32dcbc0d7c4c86b3602791baf1f3b7d31b1de40 100644
--- a/src/box/xrow.h
+++ b/src/box/xrow.h
@@ -233,8 +233,8 @@ xrow_encode_dml(const struct request *request, struct region *region,
  */
 struct synchro_request {
 	/**
-	 * Operation type - either IPROTO_ROLLBACK or IPROTO_CONFIRM or
-	 * IPROTO_PROMOTE
+	 * Operation type - either IPROTO_RAFT_ROLLBACK or IPROTO_RAFT_CONFIRM
+	 * or IPROTO_RAFT_PROMOTE
 	 */
 	uint16_t type;
 	/**