+"""IRB Test Case HLD:
+
+**config**
+ - L2 MAC learning enabled in l2bd
+ - 2 routed interfaces untagged, bvi (Bridge Virtual Interface)
+ - 2 bridged interfaces in l2bd with bvi
+
+**test**
+ - sending ip4 eth pkts between routed interfaces
+ - 2 routed interfaces
+ - 2 bridged interfaces
+
+ - 64B, 512B, 1518B, 9200B (ether_size)
+
+ - burst of pkts per interface
+ - 257pkts per burst
+ - routed pkts hitting different FIB entries
+ - bridged pkts hitting different MAC entries
+
+**verify**
+ - all packets received correctly
+
+"""
+