From the IETF side, there is a working group called the Integrated Services Over Specific Lower Layers (ISSL) Group that is also taking up the challenge of integrating the Layer-4 RSVP mechanisms used within Ethernet networks to ATM QoS mechanisms used at Layers 2 and 3. [0181] As significant as this issue of reconciliation between RSVP and ATM is, there are other topics that are of interest in th