A router is coupled to sources of multicast streams and to multicast consumer hosts through one or more network elements, for managing multicast streams sent to hosts through the one or more network elements using subscriber circuits. In the first test run and repair, a BIST circuit obtains the original combined repair solution from a fuse bay on the memory chip, runs the first test run for the memory chip, obtains a first test-run repair solution, and combines the original combined repair solution and the first test-run repair solution to obtain the latestfirst combined repair solution. The sentence includes label words that describe the nodes and relationship words that describe the edges.