In respective leaf tables (LT(1) to LT(m)) of a coupling management table (20), there are provided delete operation identifiers (D(1) to D(m)) indicating that leaf queues (LQ) respectively next to them toward the upstream direction are under delete operation. When one of the leaf queues (LQ(n)) should...http://www.google.fr/patents/US6850522?utm_source=gb-gplus-shareBrevet US6850522 - Packet buffer device and packet switching device
