Address ip1=Util.createRandomAddress(), ip2=Util.createRandomAddress();
cons_d.add(ip1, 1, 10, 10);
cons_d.add(ip2, 2, 20, 20);
// System.out.println("\ncons_d before: " + cons_d);
cons_d.merge(d);
Assert.assertEquals(5, cons_d.size());
//System.out.println("\ncons_d after: " + cons_d);
Assert.assertEquals(1, cons_d.lowSeqnoAt(ip1));
Assert.assertEquals(2, cons_d.lowSeqnoAt(ip2));