diff --git a/pimd/pim_vxlan_instance.h b/pimd/pim_vxlan_instance.h
index 63ef3a601a..3f99483fbe 100644
--- a/pimd/pim_vxlan_instance.h
+++ b/pimd/pim_vxlan_instance.h
@@ -17,8 +17,26 @@
 #ifndef PIM_VXLAN_INSTANCE_H
 #define PIM_VXLAN_INSTANCE_H
 
+/* pim termination device is expected to include the substring ipmr-lo */
+#define PIM_VXLAN_TERM_DEV_NAME "ipmr-lo"
+
 struct pim_vxlan_instance {
 	struct hash *sg_hash;
+
+	/* this is lo for default instance and vrf-dev for non-default
+	 * instances
+	 */
+	struct interface *default_iif;
+
+	/* In a MLAG/VxLAN-AA setup the peerlink sub-interface (ISL-rif) is
+	 * used as the IIF in
+	 */
+	struct interface *peerlink_rif;
+
+	/* device used by the dataplane to terminate multicast encapsulated
+	 * vxlan traffic
+	 */
+	struct interface *term_if;
 };
 
 extern void pim_vxlan_init(struct pim_instance *pim);