As telecommunication networks have become bigger and more complex, the need for managing them more effectively,
optimized their capacity and reducing their operation costs has become apparent. To be a adaptive network is becoming
more urgent as the telecommunications market is continuously changing and new services have to be constructed and
provided quickly and cheaply. This paper introduces an adaptive access network device based on ADP(Auto Discovery
Protocol) algorithm, discusses the ADP in detail and give the system software structure.
The Ethernet Passive Optical Network (EPON) has recently attracted more and more research attention, and is the best
solution of NGN (Next Generation Network) system with predominance of both Ethernet and PON. The outstanding
advantage is great use scope, good extending performance and compatibility, lower cost. The pure data EPON
equipment, which is according with IEEE 802.3ah standard. This paper discusses a QoS scheme in detail. The scheme is
to support muti-service QoS based on multi-LLID technology. Multi-layer classification, multiple LLID to multiple
services and a concrete QoS scheme is discussed. Performing QoS based on multiple services is a hot field of EPON.
This paper brings out a QoS scheme based on multi-LLID technology to support multiple services.
The Ethernet Passive Optical Network (EPON) has recently attracted more and more research attentions since it could be a perfect candidate for next generation access networks. EPON utilizes pon structure to carry ethernet data, having the both advantages of pon and ethernet devices. From traditional view, EPON is considered to only be a Ethernet services access platform and wake in supporting multi-services especially real-time service. It is obvious that if epon designed only to aim to carrying data service, it is difficult for epon devices to fulfill service provider's command of taking EPON as a integrated service access platform. So discussing the multi-services carrying technology in EPONs is a significative task. This paper deploy a novel method of multi-llid to support multi-services carrying in EPONs.
While the ethernet is applied more and more in public network environment and xdsl service become the most common access mode ,IP kenel DSLAM undertakes some functions such as service distribution and convergence ,security management and customer management.Facing the contradiction of the need of port isolation and the shortage of ip address,VLAN aggregation technology is applied in DSLAM.How to implement the communicatio between the two vlan but share the same ip subnet,proxy arp does this. This paper introduces how to implement proxy arp in the DSLAM. TCP/IP communication detail procedure betweent two host ,the relation of VLAN and network segment are discussed. The proxy arp model and its implementation in IP DSLAM is also expatiated in this paper and a conformance tesing is given.