diff --git a/zebra/zebra_vrf.h b/zebra/zebra_vrf.h
index 7113c160ac..c7a64d300a 100644
--- a/zebra/zebra_vrf.h
+++ b/zebra/zebra_vrf.h
@@ -130,6 +130,9 @@ struct zebra_vrf {
 	/* l3-vni info */
 	vni_t l3vni;
 
+	/* pim mroutes installed for vxlan flooding */
+	struct hash *vxlan_sg_table;
+
 	bool dup_addr_detect;
 
 	int dad_time;
diff --git a/zebra/zebra_vxlan.c b/zebra/zebra_vxlan.c
index 461f9dd0ad..2fa1aaf254 100644
--- a/zebra/zebra_vxlan.c
+++ b/zebra/zebra_vxlan.c
@@ -58,6 +58,7 @@ DEFINE_MTYPE_STATIC(ZEBRA, ZL3VNI, "L3 VNI hash");
 DEFINE_MTYPE_STATIC(ZEBRA, ZVNI_VTEP, "VNI remote VTEP");
 DEFINE_MTYPE_STATIC(ZEBRA, MAC, "VNI MAC");
 DEFINE_MTYPE_STATIC(ZEBRA, NEIGH, "VNI Neighbor");
+DEFINE_MTYPE_STATIC(ZEBRA, ZVXLAN_SG, "zebra VxLAN multicast group");
 
 /* definitions */
 /* PMSI strings. */
diff --git a/zebra/zebra_vxlan_private.h b/zebra/zebra_vxlan_private.h
index 40e7640cd1..9f945442bb 100644
--- a/zebra/zebra_vxlan_private.h
+++ b/zebra/zebra_vxlan_private.h
@@ -434,4 +434,26 @@ struct nh_walk_ctx {
 }
 #endif
 
+/*
+ * Multicast hash table.
+ *
+ * This table contains -
+ * 1. The (S, G) entries used for encapsulating and forwarding BUM traffic.
+ *    S is the local VTEP-IP and G is a BUM mcast group address.
+ * 2. The (X, G) entries used for terminating a BUM flow.
+ * Multiple L2-VNIs can share the same MDT hence the need to maintain
+ * an aggregated table that pimd can consume without much
+ * re-interpretation.
+ */
+typedef struct zebra_vxlan_sg_ {
+	struct zebra_vrf *zvrf;
+
+	struct prefix_sg sg;
+	char sg_str[PREFIX_SG_STR_LEN];
+
+	/* For SG - num of L2 VNIs using this entry for sending BUM traffic */
+	/* For XG - num of SG using this as parent */
+	uint32_t ref_cnt;
+} zebra_vxlan_sg_t;
+
 #endif /* _ZEBRA_VXLAN_PRIVATE_H */