Abstract: Core networks of the future will have a
translucent and eventually transparent optical
structure. Ultra-high-speed end-to-end connectiv-
ity with high quality of service and high reliability
will be realized through the exploitation of opti-
mized protocols and lightpath routing algorithms.
These algorithms will complement a flexible con-
trol and management plane integrated in the
proposed solution. Physical layer impairments
and optical performance are monitored and
incorporated in impairment-aware lightpath rout-
ing algorithms. These algorithms will be integrat-
ed into a novel dynamic network planning tool
that will consider dynamic traffic characteristics,
a reconfigurable optical layer, and varying physi-
cal impairment and component characteristics.
The network planning tool along with extended
control planes will make it possible to realize the
vision of optical transparency. This article pre-
sents a novel framework that addresses dynamic
cross-layer network planning and optimization
while considering the development of a future
transport network infrastructure.
Abstract: In this paper, a new service oriented networking
paradigm is presented, where network nodes (peers) are self-
organized into individual service entities. The key idea relies on
the overlay approach, where there exists a virtual service plane,
fragmented into self-organized and self-managed entities called
islands of servicetransparency. The islands are formed in an
upstream, ad-hoc mode from the non-networking resources (i.e
VoD, grid server, etc) towards all ingress routers of the network,
using link state advertisements and multi-cost path selection
algorithms (i.e residual bandwidth, server capacity, storage, etc).
Organization and re-organization of nodes around non-network
resources is transparent to end-users, and thus any request
within a specific service island is transparently routed to the
islandís resource for execution. A service proxy is commissioned
to resolve service addresses and service attributes to QoS metrics.
In this paper, we present the main notations and metrics of the
proposed architecture as well as node behavior and potential
GMPLS extensions for implementation issues