diff --git a/neutron_lib/constants.py b/neutron_lib/constants.py
index 7b2c37251..5ba3c6d9a 100644
--- a/neutron_lib/constants.py
+++ b/neutron_lib/constants.py
@@ -422,6 +422,7 @@ SORT_DIRECTION_DESC = 'desc'
 
 ETHERTYPE_NAME_ARP = 'arp'
 ETHERTYPE_ARP = 0x0806
+ETHERTYPE_RARP = 0x8035
 ETHERTYPE_IP = 0x0800
 ETHERTYPE_IPV6 = 0x86DD
 
diff --git a/releasenotes/notes/support-rarp-protocol-44f5c67784e74db4.yaml b/releasenotes/notes/support-rarp-protocol-44f5c67784e74db4.yaml
new file mode 100644
index 000000000..b369e0b66
--- /dev/null
+++ b/releasenotes/notes/support-rarp-protocol-44f5c67784e74db4.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Add ``ETHERTYPE_RARP`` constant which represents RARP protocol to support live-migration.