when creating a complex interconnection network where request and response
paths are very different, sometimes there is a problem of desta and src have
same port id, and thus the failure of dest!=src assertion. However, if the
order of declaration of buses is changed, the port ids somehow change, and the
assertion failure no more and thus messages are received by nodes who earlier
sent them, because src and dest are different. Now, one should be careful about
final destination port being same as beginning (src) port, but hte order of
declaration changing the bus port-ids look suspicious?
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