Abstract:
Generally, current network management
technologies follow two approaches: ITU-T's
recommendations for Telecommunication
Management Network (TMN) and IETF's Simple
Network Management Protocol (SNMP) that favors
IP networks. The applications based on these
approaches are specifically targeted at a variety of
independent networks including the standard Public
Switched Telephone Network (PSTN), the Public
Switched Data Network (PSDN), the Public Land
Mobile Network (PLMN), and the Wireless Local
Area Network (WLAN), etc., all of which will be
integrated into a single IP-based infrastructure
referred to as Next Generation Networks (NGN) in
the near future. The services, network architectures
and traffic pattern in NGN will dramatically differ
from the current networks. The heterogeneity and
complexity of NGN bring a number of challenges to
its network management. In this paper, we first
introduce the current network management
approaches and describe some deficiencies of current
solutions. Then, the network management challenges
in NGN are presented and discussed. Finally, some
emerging approaches towards network management
in NGN are illustrated.
